How are PWM-RGB and I2C-RGB different for controlling an RGB lamp?
Last Updated on：2025-08-07 08:10:04
a. PWM-RGB indicates that three I/O pins on the module separately generate one channel of PWM signals to control the current and on/off of the RGB lamp.
b. PWM-IIC indicates that two I/O pins on the module separately transmit SCL clock signals and SDA data signals to the LED control ICs to control the brightness and color temperature of the RGB lamp. The ICs use different protocols.
The I2C SoC solutions on the Tuya developer platform support only SM726EB and SM2135. If you select another control IC, use custom firmware.
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