Voltage to PWM Converter Module

From the shop's description

The voltage to pulse width modulation (PWM) can transform analog voltage into 0-100% PWM duty cycle output. The converted voltage range can be selected (using jumper) either to be from 0 to 5V or 0 to 10V. For example, if the selected range is 0 to 10v, then 10V will correspond to 100% duty cycle, 9V correspond to 90% duty cycle and so on. The precision of the converted value can be fine- tuned using the potentiometer. Features Operating Voltage: DC 7-12V Conversion Range (Adjustable): 0-5V or 0-10V into 0-100% PWM Error Tolerance: 1%-3% Frequency：50KHz Working temperature:-25~85℃