SmartBox加湿器V3 在Arduino Uno V3上可操作 Main Principes: Arduino is Programmed to Catch Humidity Level Value From Sensor (DHT22) and According To 10kOm Pot.Value (shown on Green Display) Stiches on or off the 5v Relay. External Humidifier is Required 电子产品$二手传感器 220v继电器开关(输入5v) Arduino Uno DHT22温湿度传感器 4位数字显示 10kOm电位器