CNY70 sensor array for printbots [Git repo]
Download (Git): Now all the files are hosted in GitHub: https://github.com/carlosgs/ArduSkybot/tree/master/Electronics
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Easy to make, one side circuit board for using with Printbots like the ArduSkyBot or the HKTR-9000 :)
Update 1.1: Added component values to the schematic. Thanks to Martin Velickovski for the note!