Welcome to our shop! The STM3210 ADC module features an onboard STM32F103C8T6 main control chip. It is equipped with an on-board CH340 serial port to USB chip, allowing you to conveniently view AD sampling results on your PC through the USB port. Additionally, it has a UART serial communication interface that can be connected to an MCU. This module is meticulously crafted to ensure excellent performance. It is 100% brand new and of high quality. Specification: - Analog input channel: 10-channel single-ended input - Sampling voltage input range: 0-3.3V - Power supply voltage: 5V/3.3V - Resolution: 12 Bit(4096) - PCB Size: about 5.1*3.5cm/2*1.38inch Package List: - 1 * Module Note: 1. The sampling voltage input terminal INO-IN9 can be connected or only partially connected. When a certain channel has no sampling voltage input, the output of the channel is a random value. The unused port can also be modified in the program for normal I/O port use. 2. Please ensure that the voltage used does not exceed 3.3V to avoid the possibility of damaging the chip. 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.