WiFi - Development Board Micro-Python IoT Wireless WiFi Learning Kit -2021.    Base Board:  pyboard interface: support pyboard, pyWiFi-ESP32, pypyWiFi-ESP8266;  2.54mm pin header: lead out all interfaces of pyboard;  Button * 2: RST and USR buttons are brought out;  Potentiometer: ADC input:  Passive buzzer: DAC output;  Button battery holder: Install CR1220 button battery;  Servo interface: servo interface * 1- * 4 (external isolation circuit is required to connect the servo);  OLED interface: 4P / 0.96inch / I2C / OLED Display;  1.77 Inch LCD interface: suitable for 01Studio 1.77 inch LCD display;  2.4 Inch LCD interface: suitable for 01Studio 2.4LCD display;  Temperature sensor: DS18B2D;  Temperature and humidity sensor: DHT11;  Sensor interface 1: 3P interface for external sensors;  Sensor interface 2: 3P interface for external sensors;  Communication interface: 4P interface for external UART / I2C equipment;  Lithium battery charging circuit: charge the connected lithium battery (red light-charging, green light-full);    Package Included:  1 x Base Board;  1 x WiFi- ESP8266 Development Board;  1 x 0.9 inch OLED;  1 x Mocro USB Cable