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Working Voltage: 3.3V/5V
Control Chip: TCS3472XFN
Logic Voltage: 3.3V/5V
Communication Interface: I2C
VIN: 3.3V/5V Power+
GND: Power Ground-
3V3: 3.3V
SCL: 12C clock input
SDA: 12C data input
INT: Interrupt output (open drain output)
LED: Light Emitting Diode
12C Communication:
1 data line, 1 clock line.
There are three types of signals in the I2C bus in the process of transmitting data: start signal, end signal and response signal.
Start Signal: When SCL is high level, SDA transitions from high level to low level, and starts to transmit data.
End Signal: When SCL is at high level, SDA transitions from low level to high level, ending the transmission of data.
Response Signal: After receiving the 8bit data, the IC that receives the data sends a specific low-level pulse to the IC that sends the data, indicating that the data has been received I2C write timing.
R. Stuplich
Reviewed in the United States on February 9, 2024
3.3v compatible for ESP8266 is a good bonus. Work very well. The onboard illumination can be turned off via GPIO pin if needed. I don't need the illumination because I monitor the color of status LEDs with it so they self illuminate.
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