
Discontinued — replaced by the Adafruit APDS9960 Proximity, Light, RGB, and Gesture Sensor (STEMMA QT / Qwiic).
sensor supply input; Adafruit product page says connect VDD to 3-5VDC
common ground; Adafruit product page says Ground to common ground
I2C clock; Adafruit product page says SCL to I2C Clock on the microcontroller
I2C data; Adafruit product page says SDA to I2C Data on the microcontroller
white illumination LED control; Adafruit product page says the LED can be turned on or off by any logic-level output
I2C · Analog · 3.3 – 5 V · Breakout
Adafruit describes the CdS photoresistor as a light sensor whose resistance falls as light increases, and its product page gives an examp…
Module pins: VDD, GND, SCL, SDA. Schematik maps them to your board in the app.
CdS photoresistors, I2C lux sensors like VEML7700 and TSL2591, multi-channel spectral sensors, UV detectors and TCS-series color sensors — about 80 listings for anything that responds to photons.
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Sensors · Distance sensors · 178 parts
| Pin | Position | Type | Function | Voltage |
|---|
| VDD | power | sensor supply input; Adafruit product page says connect VDD to 3-5VDC | 3-5VDC per Adafruit product page | |
| GND | ground | common ground; Adafruit product page says Ground to common ground | 0V | |
| SCL | i2c clock | I2C clock; Adafruit product page says SCL to I2C Clock on the microcontroller | ||
| SDA | i2c data | I2C data; Adafruit product page says SDA to I2C Data on the microcontroller | ||
| LED | digital input | white illumination LED control; Adafruit product page says the LED can be turned on or off by any logic-level output |
Photo Cell (CdS Photoresistor)
Loose CdS light-dependent resistor for simple analog light sensing. Useful for light/dark thresholds and approximate brightness, not color detection.