Power Pins
- VIN/V+ - this is the power pin. To power the board, give it the same power as the logic level of your microcontroller - e.g. for a 5V microcontroller like Arduino, use 5V.
- GND - common ground for power and logic.
Signal Output
- SIG/Sig - this is the output signal from the infrared demodulator. When a 38KHz signal is received, the IR signal is piped out the Signal pin into your microcontroller.
This board is specifically for proximity sensing or break-beam projects. It can receive 38KHz IR remote control signals but there isn't a filter system so you'll get a lot of spurious signals.
STEMMA JST PH
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STEMMA JST PH - 2mm pitch STEMMA JST port for use with 3-pin STEMMA JST PH cables. It has connections for:
- GND - common ground for power and data. It is the black wire on the JST PH cable.
- V+ - power input for the infrared demodulator. It is the red wire on the JST PH cable.
- Sig - signal to your microcontroller. It is the white wire on the JST PH cable.
Signal LED and Jumper
- Signal LED - to the left of the JST PH connector is the signal LED, labeled Sig. It is the red LED. It will light up when an IR signal is read by the demodulator.
- LED jumper - in the center of the back of the board is a jumper for the signal LED. It is labeled Sig on the board silk. If you want to disable the signal LED, cut the trace on this jumper.
Power LED and Jumper
- Power LED - to the right of the JST PH connector is the power LED, labeled ON. It is the green LED.
- LED jumper - in the center of the back of the board is a jumper for the power LED. It is labeled On on the board silk. If you want to disable the power LED, cut the trace on this jumper.
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