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Bill of materials:
* The 3D printed PCB
* 1x Resistor 220 ohm (1/4w), through-hole
* 1x Resistor 2K2 (1/4w), through-hole
* 1x NPN transitor (TO-92 package): BC635, BC637 or compatible
* 1x 3mm Led through-hole
* 1 x 3 pin male connector right angle
Steps:
* Print the PCB
* Insert the components
* Bend the components pin to fit in the lower channels. Trim the excess
* Solder the pins between them (see the pictures)
* Add a wire or something metalic for connecting the neg led pin to GND
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juan@iearobotics.com
Juan Gonzalez-Gomez (Obijuan) I am a researcher on robotics, but I define myself as a hacker. I really believe on the opensource spirit of sharing information
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