tag:blogger.com,1999:blog-48139648398772663852023-11-15T23:51:33.927-08:00txyz.infotxyz.infohttp://www.blogger.com/profile/14846362857116832543noreply@blogger.comBlogger17125tag:blogger.com,1999:blog-4813964839877266385.post-61469873221836867122017-09-09T11:32:00.001-07:002017-09-09T11:32:48.527-07:00#millipore #Milli-Q #teardown<img src='https://scontent.cdninstagram.com/t51.2885-15/sh0.08/e35/21480412_788370038032379_1193624888196202496_n.jpg' style='max-width:586px;' /><br />
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txyz.infohttp://www.blogger.com/profile/14846362857116832543noreply@blogger.com0tag:blogger.com,1999:blog-4813964839877266385.post-549696471315516612017-01-07T21:01:00.001-08:002017-01-07T21:01:04.682-08:00Piezoelectric injector experiment A & B<img src='https://scontent.cdninstagram.com/t51.2885-15/sh0.08/e35/15876938_709951699179360_7140459146226171904_n.jpg?ig_cache_key=MTQyMjk3MzI0OTY0Njk5OTA4Ng%3D%3D.2' style='max-width:586px;' /><br />
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txyz.infohttp://www.blogger.com/profile/14846362857116832543noreply@blogger.com0tag:blogger.com,1999:blog-4813964839877266385.post-49460123885631532072014-03-19T19:52:00.001-07:002014-03-19T19:52:11.441-07:00Transmotec motor - It's just doesn't work!<iframe allowfullscreen="" frameborder="0" height="270" src="//www.youtube.com/embed/MaacduoRQqU" width="480"></iframe>txyz.infohttp://www.blogger.com/profile/14846362857116832543noreply@blogger.com0tag:blogger.com,1999:blog-4813964839877266385.post-44985845259410362662013-10-09T14:44:00.002-07:002013-10-20T12:15:01.667-07:00Experiment Bioroid! Step by step instruction to build your own Bioroid!<iframe allowfullscreen="" frameborder="0" height="572" src="//www.youtube.com/embed/Lmgt35IoX1w" width="960"></iframe>
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<span style="font-family: Arial, Helvetica, sans-serif;">Experiment Bioroid! - a robot controlled toy for small creatures like rats, hamsters, guinea pigs, lizards, or other small pets. The creature is located under the transparent shield, the clear hemisphere, on the yellow circle. The hemisphere is connected to the base by neodymium magnets.</span><br />
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<span style="font-family: Arial, Helvetica, sans-serif;">The yellow circle is a pressure sensitive surface. By using three omni-directional wheels, the robot moves in the same direction as the animal. Experiment Bioroid! is like a vehicle for pets.</span><br />
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<span style="font-family: Arial, Helvetica, sans-serif;">For safety, the robot has infrared sensors that stop the toy when it is close to an obstacle. To resume movement, the pet must start walking in another direction. The toy also stops when the creature is in the center of the yellow circle. </span><br />
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: x-large;">Bill of Material:</span><br />
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<span style="font-family: Arial, Helvetica, sans-serif;">1. Blue base of the robot from <b>Mattel Mindflex</b></span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvTEPEINl7QkG2DXCUXIfRhX_XTUGKPlfK7_ha2iMC92c0wdZW5ROZ8hrhUbDTkqVptGnI16VvJhisJmZQ4bHAU1rTXvpzClVYueTejr9vQf66EkHxRE6D66nYb8zNQgRRBz7brwAhxSmD/s1600/mindflex10basetop.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvTEPEINl7QkG2DXCUXIfRhX_XTUGKPlfK7_ha2iMC92c0wdZW5ROZ8hrhUbDTkqVptGnI16VvJhisJmZQ4bHAU1rTXvpzClVYueTejr9vQf66EkHxRE6D66nYb8zNQgRRBz7brwAhxSmD/s640/mindflex10basetop.JPG" width="480" /></a></div>
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<span style="font-family: Arial, Helvetica, sans-serif;">2. Clear hemisphere from <b>Superplexus</b></span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi0ABe8-2lZbvPH1M_uXB0j2eXmKFCG9FOH2bUm1x9_0Z2yp35q1ICbywLBNAM_XFLDM6G11boExyuoozEyt8wnW-OgI3sIL26EMNC0QvSL8y-bk6WS_VHopHMM3Fd3IhCPMRNbNYklpQTG/s1600/Superplexus-for-Wiki1.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="632" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi0ABe8-2lZbvPH1M_uXB0j2eXmKFCG9FOH2bUm1x9_0Z2yp35q1ICbywLBNAM_XFLDM6G11boExyuoozEyt8wnW-OgI3sIL26EMNC0QvSL8y-bk6WS_VHopHMM3Fd3IhCPMRNbNYklpQTG/s640/Superplexus-for-Wiki1.jpg" width="640" /></a></div>
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<span style="font-family: Arial, Helvetica, sans-serif;">3. Plastic sheets 3mm thickness</span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">4. 3x trapo omni wheels</span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">5. 3x RC Servos HS-322HD</span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">6. 3x <a href="http://www.pololu.com/catalog/product/1695" target="_blank">Force-Sensing Resistors - 0.2" Circle</a></span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">7. Arduino UNO</span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">8. Arduino UNO proto shield</span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">9. 3x <a href="http://www.pololu.com/catalog/product/136" target="_blank">Sharp Infrared distance sensors</a></span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">10. 0.1" (2.54mm) Right Angle Male Double Row Pin Header</span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">11. 3x 10k resistors</span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">12. <a href="http://www.amazon.com/Pieces-Neodymium-Magnets-1-5mm-Thick/dp/B000TKEXLI" target="_blank">50x N42 Neodymium Magnets Dia 3mm x 1.5mm Thick</a></span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">13. <a href="http://www.amazon.com/Lake-Lite-2-Pack-WHITE-Bright/dp/B00CXUED6W" target="_blank">8mm Wide Angle LED 0.5 watt</a></span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">14. <a href="http://www.pololu.com/catalog/product/1901" target="_blank">0.1" (2.54mm) Crimp Connector Housing</a></span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">15. <a href="http://www.pololu.com/catalog/product/1930" target="_blank">Female Crimp Pins for 0.1" Housings</a></span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">16. 4x AA Battery holder</span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">17. Toggle Switch</span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">18. Wires</span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">19. Velcro Sticky Back or 3m VHB</span><br />
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: x-large;"><b>Now DIY!</b></span><br />
<span style="font-family: Arial, Helvetica, sans-serif; font-size: x-large;"><b><br /></b></span>
<span style="font-size: large;"><span style="font-family: Arial, Helvetica, sans-serif;">Using "D</span><span style="font-family: Arial, Helvetica, sans-serif;">remel circle cutter" </span><span style="font-family: Arial, Helvetica, sans-serif;">cut two plastic circles</span></span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">177mm Diameter for pressure sensitive surface</span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">155mm </span><span style="font-family: Arial, Helvetica, sans-serif;">Diameter</span><span style="font-family: Arial, Helvetica, sans-serif;"> for bottom base</span><br />
<span style="font-family: Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Arial, Helvetica, sans-serif;">In my case I build my own circle cutter</span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBeP-TbpgcX9ZphvquDp0yTkXBnctKoOSOHF18tO9kCPl4yXs0vTAJtU-dKNV0gQbxLVrR0buxWKRZTj8eXrl3VQRaXaiVsFO868L-yNWPrxdV8022UXOZePxtxK6qmJyrMwpy8CIrLaOk/s1600/IMG_1209.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBeP-TbpgcX9ZphvquDp0yTkXBnctKoOSOHF18tO9kCPl4yXs0vTAJtU-dKNV0gQbxLVrR0buxWKRZTj8eXrl3VQRaXaiVsFO868L-yNWPrxdV8022UXOZePxtxK6qmJyrMwpy8CIrLaOk/s640/IMG_1209.JPG" width="480" /></a></div>
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<span style="font-family: Arial, Helvetica, sans-serif;">to make perfect circles please use following setup and check video for details.</span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiZgFMjG7cUS2CkgtAoIcE8oPaiRWdx9Mw3WX4LzWGBPG-g9eDT1KDwFM-ASMV4RMFcC3U46HZMs-KAc7bWmMzFoITjW8ytZpQwcFiPJJMaxUlSkro6oHq_8HsuTaRi9a4kvmRE0Xc_Ycc6/s1600/IMG_1220.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiZgFMjG7cUS2CkgtAoIcE8oPaiRWdx9Mw3WX4LzWGBPG-g9eDT1KDwFM-ASMV4RMFcC3U46HZMs-KAc7bWmMzFoITjW8ytZpQwcFiPJJMaxUlSkro6oHq_8HsuTaRi9a4kvmRE0Xc_Ycc6/s640/IMG_1220.JPG" width="480" /></a></div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.youtube.com/embed/D8kZFAhsS1g?feature=player_embedded' frameborder='0'></iframe></div>
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: large;">Modify servo for continuous rotation</span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">take apart servo and remove small tab from the large gear</span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjEzfWCWqdF5BUdrL6ONAJzPET5nHOw9PEKLFcn-ojmiKSbr4O_KNyxGlLleFE-6sPL6flg9aNpmg1_gl_3sINbGXo25n2i1wG2BtGvAyWRYq-2sJn9tSAyt8D5I8wM9oGO9nSAJGSNFKt8/s1600/servo24.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="380" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjEzfWCWqdF5BUdrL6ONAJzPET5nHOw9PEKLFcn-ojmiKSbr4O_KNyxGlLleFE-6sPL6flg9aNpmg1_gl_3sINbGXo25n2i1wG2BtGvAyWRYq-2sJn9tSAyt8D5I8wM9oGO9nSAJGSNFKt8/s640/servo24.jpg" width="640" /></a></div>
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<span style="font-family: Arial, Helvetica, sans-serif;">make the following setup</span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCn4zOG7oWlZdQuINeU-GrJogyOOqK-e2Mu0EEsqgUXefrt3uMq3YnlF8tPtv62hdMbBBurwCAQ2GyTVkOEKPxZZvf9YZmq0Kux_AznkvzMLiTlUEiFhPn6RKPpZRZkUM2l2dQ0EDZ9baN/s1600/IMG_1235.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCn4zOG7oWlZdQuINeU-GrJogyOOqK-e2Mu0EEsqgUXefrt3uMq3YnlF8tPtv62hdMbBBurwCAQ2GyTVkOEKPxZZvf9YZmq0Kux_AznkvzMLiTlUEiFhPn6RKPpZRZkUM2l2dQ0EDZ9baN/s640/IMG_1235.JPG" width="480" /></a></div>
<span style="font-family: Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Arial, Helvetica, sans-serif;">upload a code to arduino with myservo.write(90);</span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">then stop the servo </span><span style="font-family: Arial, Helvetica, sans-serif;">by rotating pot</span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">glue servo shaft with small amount of super glue.</span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">do not insert pot shaft as it was before. just place pot diagonally into servo cavity</span><span style="font-family: Arial, Helvetica, sans-serif;">. </span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">Assemble servo.</span><br />
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: large;">RC servo to base mount</span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">draw the next drawing on a</span><span style="font-family: Arial, Helvetica, sans-serif;"> bottom base</span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBetrGKca-LNMJx_G4JGJ8_tnZDq6IshqF-qgbr44C1WncbfU9lYoiowDqxb9xEh_zPB0MKIJ1-FTFc91JGWb4g01uaLuK-LTqD0OQDV6aLmStZSCbZM7hdx-XbQYAieTLNEytzFYBTlDK/s1600/IMG_1237.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="480" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBetrGKca-LNMJx_G4JGJ8_tnZDq6IshqF-qgbr44C1WncbfU9lYoiowDqxb9xEh_zPB0MKIJ1-FTFc91JGWb4g01uaLuK-LTqD0OQDV6aLmStZSCbZM7hdx-XbQYAieTLNEytzFYBTlDK/s640/IMG_1237.JPG" width="640" /></a><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi3dyUPcdbqzZB_GpOqgm_kbhVgYwf6DjlwwoVsfsYTfN1Uy__0nwXCFmA7dF5Tky1XHHTG4FL3fqP-DYkBREII9c712SUEIjWZQbv4da2LoTEgbQH7xqOAmvlAdW6MTJEx2pSqDck1k1dh/s1600/IMG_1236.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="480" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi3dyUPcdbqzZB_GpOqgm_kbhVgYwf6DjlwwoVsfsYTfN1Uy__0nwXCFmA7dF5Tky1XHHTG4FL3fqP-DYkBREII9c712SUEIjWZQbv4da2LoTEgbQH7xqOAmvlAdW6MTJEx2pSqDck1k1dh/s640/IMG_1236.JPG" width="640" /></a></div>
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<span style="font-family: Arial, Helvetica, sans-serif;">Align servo like </span><span style="font-family: Arial, Helvetica, sans-serif;">on the pic</span><span style="font-family: Arial, Helvetica, sans-serif;"> </span><span style="font-family: Arial, Helvetica, sans-serif;">using a ruler and pencil rod </span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg3Uj9wZtLzKqd05PQGdqSW_dui5LuAsAlnlSxXmKQDBmP3nn_4mbPphvvbzoPJoF3x4sPLSRgPjQznGXLzy8rC7xfL1XQBkOR95XuSJHy6mq0hlweLx8Dz_3-8SBRx816FsdbzuUjd5OfK/s1600/IMG_1240.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="480" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg3Uj9wZtLzKqd05PQGdqSW_dui5LuAsAlnlSxXmKQDBmP3nn_4mbPphvvbzoPJoF3x4sPLSRgPjQznGXLzy8rC7xfL1XQBkOR95XuSJHy6mq0hlweLx8Dz_3-8SBRx816FsdbzuUjd5OfK/s640/IMG_1240.JPG" width="640" /></a></div>
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<span style="font-family: Arial, Helvetica, sans-serif;">Super Glue it</span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj4YJ6BPEOMEiz_S0Rs4G77Wv7i6Nfaa8RDiNrCiWSis0q2HcYgFpzgCXm5wbqm6kIaq3ZQN4IrUgd2C3VWsj3YwtMwCgMHM0OKHyxBkANVnDK6wbygrO9Aw_Q8Gv7Vt-BnvRHoRBBORLN4/s1600/IMG_1241.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="480" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj4YJ6BPEOMEiz_S0Rs4G77Wv7i6Nfaa8RDiNrCiWSis0q2HcYgFpzgCXm5wbqm6kIaq3ZQN4IrUgd2C3VWsj3YwtMwCgMHM0OKHyxBkANVnDK6wbygrO9Aw_Q8Gv7Vt-BnvRHoRBBORLN4/s640/IMG_1241.JPG" width="640" /></a></div>
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: large;">Wheels to servo</span></div>
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<span style="font-family: Arial, Helvetica, sans-serif;">sandpaper wheel</span></div>
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<span style="font-family: Arial, Helvetica, sans-serif;">Super Glue each wheel to servo horn (included with each </span><span style="font-family: Arial, Helvetica, sans-serif;">HS-322HD</span><span style="font-family: Arial, Helvetica, sans-serif;"> servo)</span></div>
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<span style="font-family: Arial, Helvetica, sans-serif;">use center tool(m3 bolt with tape/spacer) to align horn on center.</span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgaD1XwB6XtpS-wduz0oKWvrLzu_LniU5gNF0_zHRmo5GW9eWnMrZOQocYUrV9mrA8OZwczDnnBVVY9zm2A0GGDkyVfABw0-eEOXkbTPyiOnFjUGI-XdeeerWCeAYjLfH7fc7SIRWDLNyZW/s1600/IMG_1243.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="480" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgaD1XwB6XtpS-wduz0oKWvrLzu_LniU5gNF0_zHRmo5GW9eWnMrZOQocYUrV9mrA8OZwczDnnBVVY9zm2A0GGDkyVfABw0-eEOXkbTPyiOnFjUGI-XdeeerWCeAYjLfH7fc7SIRWDLNyZW/s640/IMG_1243.JPG" width="640" /></a></div>
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: large;">IR distance sensor</span></div>
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<span style="font-family: Arial, Helvetica, sans-serif;">Super Glue it.</span></div>
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: large;">Neodymium Magnets</span></div>
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<span style="font-family: Arial, Helvetica, sans-serif;">Drill 2.9mm holes</span></div>
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<span style="font-family: Arial, Helvetica, sans-serif;">use 5 magnets for each hole in blue base and hemisphere.</span></div>
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<span style="font-family: Arial, Helvetica, sans-serif;">glue only the last magnet to hemisphere. </span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgcB3FxyFZHpAJbPyMQBrSSkoreJC2I4GEfsppVEoGMq1rec7EDySnT1aUuVnz2gGHOP1jPpeaVQwO29wQFwu8r3qkwH_5-5gCiTIEFghuHCxsAwT5oF7iex_9BI2ImVzzjmKW3qDk8sZAD/s1600/IMG_0611.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="480" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgcB3FxyFZHpAJbPyMQBrSSkoreJC2I4GEfsppVEoGMq1rec7EDySnT1aUuVnz2gGHOP1jPpeaVQwO29wQFwu8r3qkwH_5-5gCiTIEFghuHCxsAwT5oF7iex_9BI2ImVzzjmKW3qDk8sZAD/s640/IMG_0611.JPG" width="640" /></a></div>
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: large;">Electronics</span></div>
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<span style="font-family: Arial, Helvetica, sans-serif;">Just duplicate my circuit analogously to hi-res pics</span></div>
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txyz.infohttp://www.blogger.com/profile/14846362857116832543noreply@blogger.com1tag:blogger.com,1999:blog-4813964839877266385.post-41856484789216471072013-04-26T15:17:00.002-07:002013-04-26T15:17:49.627-07:00AD7195EBZ & AD7194EBZ Evaluation boards<br />
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<br />txyz.infohttp://www.blogger.com/profile/14846362857116832543noreply@blogger.com0tag:blogger.com,1999:blog-4813964839877266385.post-44725039245135522582013-04-26T15:09:00.000-07:002013-04-26T15:09:06.216-07:00TORBAL BTA210 disassemble (Fulcrum inc) <div class="separator" style="clear: both; text-align: center;">
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<br />txyz.infohttp://www.blogger.com/profile/14846362857116832543noreply@blogger.com0tag:blogger.com,1999:blog-4813964839877266385.post-41639393726075403292013-03-12T17:36:00.000-07:002013-03-12T18:34:36.729-07:00Animatronic Golioth Head from the 1999 movie Virus<div class="separator" style="clear: both; text-align: center;">
<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='750' height='750' src='https://www.youtube.com/embed/VEEKuIXdMZ8?feature=player_embedded' frameborder='0'></iframe></div>
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<br />txyz.infohttp://www.blogger.com/profile/14846362857116832543noreply@blogger.com1tag:blogger.com,1999:blog-4813964839877266385.post-78166094135762994182012-12-14T01:19:00.002-08:002012-12-14T01:19:58.650-08:00Liquid level processing with OpenCV & Python<div class="separator" style="clear: both; text-align: center;">
<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='750' height='600' src='https://www.youtube.com/embed/YNKk9YJyqJY?feature=player_embedded' frameborder='0'></iframe></div>
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<span style="font-family: Courier New, Courier, monospace;">import numpy as np</span><br />
<span style="font-family: Courier New, Courier, monospace;">import cv2</span><br />
<span style="font-family: Courier New, Courier, monospace;">import math</span><br />
<span style="font-family: Courier New, Courier, monospace;"><br /></span>
<span style="font-family: Courier New, Courier, monospace;">cap = cv2.VideoCapture(0)</span><br />
<span style="font-family: Courier New, Courier, monospace;">cap.set(3,640)</span><br />
<span style="font-family: Courier New, Courier, monospace;">cap.set(4,480)</span><br />
<span style="font-family: Courier New, Courier, monospace;"><br /></span>
<span style="font-family: Courier New, Courier, monospace;">while True:</span><br />
<span style="font-family: Courier New, Courier, monospace;"> ret, img = cap.read()</span><br />
<span style="font-family: Courier New, Courier, monospace;"> if img is None:</span><br />
<span style="font-family: Courier New, Courier, monospace;"> break</span><br />
<span style="font-family: Courier New, Courier, monospace;"> gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)</span><br />
<span style="font-family: Courier New, Courier, monospace;"> edges = cv2.Canny(gray, 100, 120)</span><br />
<span style="font-family: Courier New, Courier, monospace;"> lines = cv2.HoughLinesP(edges, 1, math.pi/1, 20, None, 2, 480);</span><br />
<span style="font-family: Courier New, Courier, monospace;"><br /></span>
<span style="font-family: Courier New, Courier, monospace;"> dot1 = (lines[0][0][0],lines[0][0][1])</span><br />
<span style="font-family: Courier New, Courier, monospace;"> dot2 = (lines[0][0][2],lines[0][0][3])</span><br />
<span style="font-family: Courier New, Courier, monospace;"> cv2.line(img, dot1, dot2, (255,0,0), 3)</span><br />
<span style="font-family: Courier New, Courier, monospace;"> cv2.imshow("output", img)</span><br />
<span style="font-family: Courier New, Courier, monospace;"> length = lines[0][0][1] - lines[0][0][3]</span><br />
<span style="font-family: Courier New, Courier, monospace;"> print (length)</span><br />
<span style="font-family: Courier New, Courier, monospace;"> key = cv2.waitKey(10)</span><br />
<span style="font-family: Courier New, Courier, monospace;"> if key == 27:</span><br />
<span style="font-family: Courier New, Courier, monospace;"> break</span><br />
<span style="font-family: Courier New, Courier, monospace;"><br /></span>
<span style="font-family: Courier New, Courier, monospace;">cv2.destroyAllWindows() </span><br />
<span style="font-family: Courier New, Courier, monospace;">cv2.VideoCapture(0).release()</span><br />
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txyz.infohttp://www.blogger.com/profile/14846362857116832543noreply@blogger.com4tag:blogger.com,1999:blog-4813964839877266385.post-80561756779196498542012-12-12T16:54:00.001-08:002012-12-12T19:08:47.049-08:00Finite-state machine<div class="separator" style="clear: both; text-align: center;">
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<br />txyz.infohttp://www.blogger.com/profile/14846362857116832543noreply@blogger.com0tag:blogger.com,1999:blog-4813964839877266385.post-77110627201932661082012-11-24T19:51:00.003-08:002012-11-24T19:51:33.894-08:00How to program ATTINY2313 with USBASP? or/and Upload Arduino firmware with USB ASP<div align="left" class="separator" style="clear: both; text-align: center;">
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<span style="font-family: Arial, Helvetica, sans-serif;">You trying upload firmware with USBASP on attiny2313 and have errors like:</span></div>
<pre style="-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: rgba(200, 200, 200, 0.298039); border: 0px currentColor; color: #333333; font-size-adjust: none; font-stretch: normal; font: 12px/19.5px Consolas, Menlo, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace, serif; letter-spacing: normal; margin: 0px 0px 10px; max-height: 600px; orphans: 2; overflow: auto; padding: 5px; text-align: left; text-indent: 0px; text-transform: none; vertical-align: baseline; widows: 2; width: auto; word-spacing: 0px;"><code style="background-image: none; border: 0px currentColor; color: #222222; font-family: Consolas, Menlo, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace, serif; font-size: 12px; margin: 0px; padding: 0px; vertical-align: baseline;">avrdude: warning: cannot set sck period. please check for usbasp firmware update.
avrdude: error: programm enable: target doesn't answer. 1
avrdude: initialization failed, rc=-1
Double check connections and try again, or use -F to override
this check.</code></pre>
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<span style="font-family: Arial;"></span> </div>
<div style="-ms-word-wrap: break-word; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: #fffef9; border: 0px currentColor; clear: both; color: #333333; font-size-adjust: none; font-stretch: normal; font: 15px/19.5px Georgia, "Times New Roman", Times, serif; letter-spacing: normal; margin: 0px 0px 1em; orphans: 2; padding: 0px; text-align: left; text-indent: 0px; text-transform: none; vertical-align: baseline; white-space: normal; widows: 2; word-spacing: 0px;">
<span style="font-family: Arial, Helvetica, sans-serif;">The problem is that the 2313's default clock (internal oscillator, CKDIV8 enabled) is way to slow for the SCK used by the USBasp by default. From this error message it seems like the current version of avrdude already adresses this problem and tries to reduce the SCK clock rate, but your USBasp's firmware doesn't support that. (thank</span> <span style="font-family: Arial, Helvetica, sans-serif;">to </span><a href="http://electronics.stackexchange.com/users/7716/noah1989"><span style="font-family: Arial, Helvetica, sans-serif;">noah1989</span></a><span style="font-family: Arial, Helvetica, sans-serif;">) </span></div>
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<span style="font-family: Arial;">fix this issue in two steps:</span></div>
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<ul style="-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: #fffef9; border: 0px currentColor; color: #333333; font-family: Georgia, "Times New Roman", Times, serif; font-size-adjust: none; font-stretch: normal; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 19.5px; margin: 0px 0px 1em 30px; orphans: 2; padding: 0px; text-align: left; text-indent: 0px; text-transform: none; vertical-align: baseline; white-space: normal; widows: 2; word-spacing: 0px;">
<li style="-ms-word-wrap: break-word; border: 0px currentColor; line-height: 1.3em; margin: 0px 0px 7px; padding: 0px; vertical-align: baseline;"><span style="font-family: Arial, Helvetica, sans-serif;">update the USBasp firmware to a version that allows use it with latest avrdude software. by using </span><a href="http://www.arduino.cc/playground/Code/MegaISP" target="_blank"><span style="font-family: Arial, Helvetica, sans-serif;">Arduino ISP(Mega ISP) programmer</span></a><span style="font-family: Arial, Helvetica, sans-serif;"> + </span><a href="http://www.ladyada.net/learn/avr/avrdude.html" target="_blank"><span style="font-family: Arial, Helvetica, sans-serif;">AvrDude(WinAVR)</span></a></li>
</ul>
<blockquote class="tr_bq">
<span style="font-family: Arial, Helvetica, sans-serif;">avrdude -p 2313 -P com13 -b 19200 -c avrisp -U flash:w:usbasp.hex<br /></span><a href="http://txyz.info/blog/usbasp.hex" target="_blank"><span style="font-family: Arial, Helvetica, sans-serif;">usbasp.hex download</span></a><span style="font-family: Arial, Helvetica, sans-serif;"> (v2009-02-28) yes, it's most recent <br /><br /><strong>Also new firmware version allow you to use USBASP with Arduino 1.0.2 and 1.5 to upload Arduino bootloader.</strong></span></blockquote>
<ul style="-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; background-color: #fffef9; border: 0px currentColor; color: #333333; font-size-adjust: none; font-stretch: normal; font: 15px/19.5px Georgia, "Times New Roman", Times, serif; letter-spacing: normal; margin: 0px 0px 1em 30px; orphans: 2; padding: 0px; text-align: left; text-indent: 0px; text-transform: none; vertical-align: baseline; white-space: normal; widows: 2; word-spacing: 0px;">
<li style="-ms-word-wrap: break-word; border: 0px currentColor; font-size: 15px; line-height: 1.3em; margin: 0px 0px 7px; padding: 0px; vertical-align: baseline;"><span style="font-family: Arial, Helvetica, sans-serif;">manually reduce the SCK frequency by setting the "Slow SCK" jumper on the board. This schematic helps you to find it:<span class="Apple-converted-space"> </span></span><a href="http://www.fischl.de/usbasp/bilder/usbasp_circuit.png" rel="nofollow" style="border: 0px currentColor; color: #0474d4; cursor: pointer; font-size: 15px; margin: 0px; padding: 0px; text-decoration: underline; vertical-align: baseline;"><span style="font-family: Arial, Helvetica, sans-serif;">http://www.fischl.de/usbasp/bilder/usbasp_circuit.png</span></a>. In USBASP from China (eBay) you will not find this jumper. You need manually solder piece of wire. Like I did, see my pic for details:</li>
</ul>
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<span style="font-family: Arial, Helvetica, sans-serif;"> </span><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgzKjq-95Vaf28PnPvtjtmnILpdWRUuHS3Y7wCb6A5vn6dUxufBcbEarxSV7tqCqU1c5RAP9hLFGU6cp5bEasnCAbQXykpIYAB0j-bciVlj84C-uN5E8gJyGV6pI1FQvKdNb6ndAS3DD8L9/s1600/How+to+program+ATTINY2313+with+USBASP+Upload+Arduino+firmware+with+USBASP.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgzKjq-95Vaf28PnPvtjtmnILpdWRUuHS3Y7wCb6A5vn6dUxufBcbEarxSV7tqCqU1c5RAP9hLFGU6cp5bEasnCAbQXykpIYAB0j-bciVlj84C-uN5E8gJyGV6pI1FQvKdNb6ndAS3DD8L9/s320/How+to+program+ATTINY2313+with+USBASP+Upload+Arduino+firmware+with+USBASP.JPG" width="320" /></a></div>
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<strong></strong><br />txyz.infohttp://www.blogger.com/profile/14846362857116832543noreply@blogger.com2tag:blogger.com,1999:blog-4813964839877266385.post-62885524884356704322012-11-08T16:06:00.001-08:002012-11-11T12:58:02.538-08:00Very advanced AVR attiny2313 WAV music player. Read files from SD card / microSD / MMC.<div class="separator" style="clear: both; text-align: center;">
<span style="font-family: Arial, Helvetica, sans-serif;"><iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='750' height='600' src='https://www.youtube.com/embed/ydJdBmdGjUY?feature=player_embedded' frameborder='0'></iframe></span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEge0W_3zuomHE10f30wEVddPoKSCeJRm0AoPnpLss6xApNmpepK5C5XtSLGoWqKa7qjsiqrHdRMFLQZNcN9O8nyAiX3btMHPrQXgORROhrlOPPqARHEfnqxdYfehH5Gg6GsyRuJyK_okxpX/s1600/AVR-attiny-attiny2313-SD-card-WAV-player-Schematic-Circuit.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEge0W_3zuomHE10f30wEVddPoKSCeJRm0AoPnpLss6xApNmpepK5C5XtSLGoWqKa7qjsiqrHdRMFLQZNcN9O8nyAiX3btMHPrQXgORROhrlOPPqARHEfnqxdYfehH5Gg6GsyRuJyK_okxpX/s1600/AVR-attiny-attiny2313-SD-card-WAV-player-Schematic-Circuit.png" /></a></div>
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<span style="font-family: Arial, Helvetica, sans-serif;">Player controls: <b>UART</b> or/and <b>One button "Select / Play"</b> or/and <b>binary code "Select track"</b></span></div>
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<b><span style="font-family: Arial, Helvetica, sans-serif;"><br /></span></b></div>
<h2>
<span style="font-family: Arial, Helvetica, sans-serif; font-size: x-large;">Pinouts and Switches</span></h2>
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<b style="font-family: Arial, Helvetica, sans-serif;">UART - </b><span style="font-family: Arial, Helvetica, sans-serif;">send upper symbol "A" to start first track, "B" for second, etc... (check below for more info). To stop playback enter any other symbol.</span><br />
<b style="font-family: Arial, Helvetica, sans-serif;">Dir1 / Dir2</b><span style="font-family: Arial, Helvetica, sans-serif;"> - Select directory with WAV files. Required 2 directory with names "1" and "2". Dir "1" selected by default</span></div>
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<span style="font-family: Arial, Helvetica, sans-serif;"><b>Select / Play</b> - button launches a track to play. One click play first track, double click second, etc...</span></div>
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<b style="font-family: Arial, Helvetica, sans-serif;">Select track</b><span style="font-family: Arial, Helvetica, sans-serif;"> - play track by binary code. If 0001 play first track, if 0010 play second, etc... </span><a href="http://en.wikipedia.org/wiki/Binary_numeral_system#Counting_in_binary" style="font-family: Arial, Helvetica, sans-serif;" target="_blank">Counting in binary</a></div>
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<span style="font-family: Arial, Helvetica, sans-serif;"><b>Monster</b> - can slow (2 times) track play. The switch works "on the fly"</span></div>
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<span style="font-family: Arial, Helvetica, sans-serif;"><b>Helium</b> - speeds up the track (1/3). The switch works "on the fly"</span></div>
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<span style="font-family: Arial, Helvetica, sans-serif;"><b>Repeat</b> - if the switch is shorted to ground, the selected track will be forever </span><span style="font-family: Arial, Helvetica, sans-serif;">played.</span></div>
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: x-large;">Debug LED information</span></h2>
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<span style="font-family: Arial, Helvetica, sans-serif;"></span><br />
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<span style="font-family: Arial, Helvetica, sans-serif;"><b>The red LED flashes</b> - no SD card or its type is not supported by the device</span></div>
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<span style="font-family: Arial, Helvetica, sans-serif;"><b>Red LED lights</b> - SD card is supported and successfully initialized, but the card was not formatted in FAT16</span></div>
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</span><br />
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<span style="font-family: Arial, Helvetica, sans-serif;"><b>Green LED lights</b> - SD card is initialized successfully, locate the file system and the device is ready to play a track - waiting for the team</span></div>
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</span><br />
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<span style="font-family: Arial, Helvetica, sans-serif;"><b>Green LED flashes</b> - the device plays the track</span></div>
<span style="font-family: Arial, Helvetica, sans-serif;">
</span><div>
<span style="font-family: Arial, Helvetica, sans-serif;"><b>The green goes to red, the green again</b> - not found a track</span></div>
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<b>The green briefly goes out and the green again</b> - pressed to choose track</div>
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<span style="font-size: x-large;">Debug UART information</span></h2>
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After each successful step in the UART sends the appropriate symbol:</div>
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<b>S</b> - (Start) of the microcontroller peripherals initialized properly</div>
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<b>C</b> - (Card Init) SD card is initialized properly and supported</div>
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<b>F</b> - (FAT Init) FAT system is supported</div>
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<b>1</b> - (No 1 Dir) no folder "1" is read from the root directory</div>
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<b>2</b> - (No 2 Dir) no folder "2" will be read from the root directory</div>
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<b>R</b> - (Ready) the device is fully ready. Waiting for the command to start the track</div>
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In addition, each time a track is transferred to the UART capital track name.</div>
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<h2>
<span style="font-size: x-large;">File system and WAV file format</span></h2>
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microSD/SD/MMC card must be formated in FAT16. 2GB maximum supported flash card size.</div>
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WAV file should be Mono with 32000Hz Sample rate and 8 Bit Depth.</div>
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In order for the unit knew what file first, second, third, etc. the first character of the file name must be uppercase letters (the rest of the name as the file extension - is ignored.)<br />
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<span style="font-size: x-large;">Uploading Attiny2313 WAV player firmware in 4 steps</span></div>
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1. <a href="http://www.arduino.cc/playground/Code/MegaISP" target="_blank">Build MegaISP (Arduino based) AVR programmer</a></div>
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2. <a href="http://www.ladyada.net/learn/avr/avrdude.html" target="_blank">Download and install WinAVR</a></div>
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3. <a href="http://txyz.info/blog/SDC_Talking.zip" target="_blank">Download WAV player firmware (.hex file inside zip archive)</a></div>
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4. Open terminal and run next command: avrdude -c avrisp -b 19200 -P com13 -p t2313 -U lfuse:w:0xe4:m -U hfuse:w:0xdf:m -U flash:w:SDC_Talking.hex<br />
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<h2>
<span style="font-size: x-large;">My device photos</span></h2>
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<h4>
AVR Attiny2313 WAV player with Sparkfun FTDI attached</h4>
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<h3>
Arduino as AVRISP programmer</h3>
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<span style="font-size: x-large;">Credits and source code</span></h2>
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<a href="http://www.getchip.net/posts/087-attiny2313-sd-card-talking-device/" target="_blank">original post</a></div>
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<a href="http://txyz.info/blog/087-SDC_Talking_Device.zip" target="_blank">source code download</a> </div>
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txyz.infohttp://www.blogger.com/profile/14846362857116832543noreply@blogger.com17