What is the pinout for the V120:SLIM and SLIM:V100 I2C, SYNC, LED header?
V120:SLIM: Pin-out settings for V120:SLIM 9-pin header is: 1, GND 2, IRLED_CTRL_OUT 3, AUX_OUT 4, GND 5, GND 6, VCAP_OUT 7, 3.3V 8, EXT_SYNC_IN 9, EXT_SYNC_OUT (Pin #1 is marked on the Garry 11-0021-50-09L conector.) (For more information, see mechanical drawings of the V120:SLIM PCB, V120 case and breakout cables on the manuals page. These drawings identify the Micro-T pin locations.) SLIM:V100: Pin-out settings for SLIM:V100 8-pin header is: 1, GND 2, 5V 3, 3.3V 4, I2C SCL 5, I2C SDA 6, LED OUT (this is the one you want) 7, SYNC OUT 8, SYNC IN Pin 1 is the square one at the bottom of the board. Be careful to draw no more than 50ma from the 3.3V supply, if you choose to tap that.