Homemade compound eye
The compound eye from DAGU, designed by Oddbot, is cool and cheap. But I needed a round board to imitate the human eye, so I made one by myself. The IR LED's and photo transistors are the same as in the original design. As I had no PN 100 transistor, I used a BD 139 (the 4 IR LED's draw approx. 100 mA @ 5 V).
Front view of the perf board
Back vie of the perf board
Eye with ABS enclosure, front view
Eye with ABS enclosure, side view
Eye with ABS enclosure, back view
The second eye will be a color sensor, based on the TCS 230.