Seems to work OK now and keep the heat down! Only thing is the range seems inconsistent, with writes of anything >1000 (range is 0 - 4095) the bulb seems almost at max intensity? Is the 1K pullup effecting the base too much?
Figure 18 shows the grayscale data packet format which consists of 12 bits x 16 channels, totaling 192 bits. Theformat is Big-Endian format. This means that the MSB is transmitted first, followed by the MSB-1, etc. When VPRG is set to GND, the TLC5940 enters the grayscale data input mode. The device switches the inputshift register to 192-bit width. After all data is clocked in, a rising edge of the XLAT signal latches the data into
I'm looking forward to trying your circuit when they do get here, hopefully I won't break the pins off! I used some kynar wire to connect to them but I tried to lift the pins in case the PCB connected them to anything else but I don't think it did
I have not removed the diode bridge from them, it would be nice not to have to modify them too much. So am I right in thinking that I should connect all the emitters to the the same diode?
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