Features: Working voltage: 5V (5V version), 8-24V (12V version) Working current: 11-15mA MODBUS RTU command supports 03, 06, 16 function codes RS485/TTL232 interface optional Three independent PWM outputs; frequency and duty cycle can be adjusted separately PWM frequency range: 1Hz to 20KHz with 1Hz adjustment steps; accuracy 0.6% Duty cycle range: 0% to 100% with 1% adjustment steps; accuracy 0.6% PWM is TTL Level; single-channel max driving current: 20mA, total max for 3 channels: 28mA Default baud rate: 9600 N 8 1; baudrate and parity are optional If settings are incorrect, short-circuit "RESET" for 5 seconds to restore factory settings In MODBUS RTU command mode, up to 247 devices can be connected in parallel Dimensions: 31 x 15 x 6.2 mm Weight: 3 grams Applications: LED Dimming Controller DC Motor & Stepper Motor PWM Debug Controller SCR Dimming Controller PLC Industrial Controller UNO/MEGA/MCU DIY projects Package Includes: 1 x Generator Module