Features: 1. with pyboard interface2. Automatic download circuit3. On board lithium battery input interface and charging circuit4. The buttons and LEDs are arranged neatly and the silk screen is clearSpecifications:Pyboard interface: supports pyBoard, pyWiFi-ESP8266, pyWifi-ESP322.54mm row pin: lead out all interfaces of pyboardTwo : leading out and Potentiometer: inputPassive buzzer: DAC outputButton battery holder: install CR1220 button batteryServo interface: steering interface X1-X4 (external isolation circuit is required to the steering )OLED interface: 4P/0.96 inch/I2C/OLED display1.77 inch LCD interface: suitable for 01 Studio 1.77 inch LCD display2.4 inch LCD interface: suitable for 01 Studio 2.4 inch LCD displayTemperature sensor: DS18B20Temperature and humidity sensor: Sensor interface 1: 3P anti fool interface for external sensorsSensor interface 2: 3P anti fool interface for external sensorsCommunication interface: 4P anti fool interface for external UART/I2C equipmentLithium battery charging circuit: charge the connected lithium battery (red light Greater than charge, green light full charge)Material: PCB+Metalcolour: BlackPackage Contents:1 x pyWiFi - ESP8266 development board1 x pyBase1 x 0.9 inch OLED1 x USB cableOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.