Analog Test Expansion Shield for Arduino and STM32 Nucleo - Waveshare 10857

Description

The Analog Test Shield integrates DAC circuit and amplifier circuit. The main resource on board: Potentiometer knob x 2, PWR LED x1, Status LED x1, Speaker x 1. You can collect the potentiometer’s voltage by AD conversion. Control LED brightness and drive speaker by DA conversion or PWM (Pulse Width Modulation). Here’s a brief description about the principle of DAC circuit and amplifier circuit.

Features

• Arduino standard interfaces, compatible with Arduino boards like Arduino UNO, Leonardo, NUCLEO, XNUCLEO
• Rotate the potentiometer to adjust analog input signal
• Onboard 12bit DAC MCP4725, outputs required wave form
• Demonstrate the DAC/PWM effects via LED and speaker