Other Parts Discussed in Thread: DLPC2607, DLPA1000,
I'm interested in using this projector to make a patterned photostimulator for optogenetics / neurophotonics. The 450 nm LED on the device would be great for stimulating Channelrhodopsin but it's important to have temporal control of the light patterning. Typically one would like to be able to control the frequency between 10-70 Hz and the duration of the pulse between 1-25 ms.
I was able to get the board to output only blue. Through this link I was also able to figure out how to set the diode current levels. However, even when have this set to just blue, when I put it on a diode and look on it on the oscilloscope I see that the blue is still just pulsing, in this case at ~120 Hz.
I believe this pulsing is controlled by the LED select output on the DLPC2607 and the strobe controller on the DLPA1000. Is there anyway for me to just get the blue LED to be in a constant on or constant wave ( CW ) mode? If I some how spliced into the LED select traces would I be able to get the DPLA1000 to output in CW mode and even On/Off modulate it with the same line at the desired temporal frequencies (20 Hz, 5 ms on for 10-40 pulses).
Thanks,
Greg