I should be working on the Sparkfun AVC, but this is fun.
I scaled up the LED driver so that it runs a Luxeon Rebel at 400 mA! I don’t even have to point the Rx at the LED any more: I can pick up a signal from the scatter. I’ll definitely have to try this system over a long range.
|I modified the circuit to run at 12V, 400 mA with a TIP31. That power resistor is overkill, but it’s what was in the junk box.|
|Too bright to look at!|