A Black Line Follower robot – brief to be a cheap as possible and easy to build for kids 10-14 as part of a short electronics course. Due to the cost restrictions the PCB size needed to be as small as possible, roughly 22mm square.
More details on Hackaday.io
Development Prototype Based around a PIC 12F510 (8 pin, 8 bit Micro) 1 x Infrared LED, 2 x infrared receivers 2 x AAA cells, 2x old phone vibration motors and a handful of vero, copper wire and resistors.
Video (via twitter) of the first test https://twitter.com/ExtElec/status/696116917627564033/video/1 So, Prototype works…
Left hand one is the one for the kids, the right hand one is a quick experiment to see how small I could make one (Still untested..
Both sent to OSH Park and we will see what comes back. Whilst I’m waiting…..
Tried some configuration changes, added tooth brushes to the back, and a ball (bead) on the front. Much smoother and more reliable. Surface must be absolutely smooth and flat.
V1 Boards arrived. Made a number of mistakes, Bodged it up to get software proved out, Redid the layout twice and more boards ordered from OSH Tried a number of different brushes, Including draft excluder and velvet, plus the covering from a clothes brush (had to order a new cloths brush quick) All worked to some extent, but you can’t beat the original
V3 Boards arrived