The main body of the module is the ESP32-WROOM-32 module, and the peripheral uses the USB-to-serial chip CP2104 to expand the micro-USB interface, which can be directly connected to the computer by USB for debugging, and the data transmission is fast and stable. The Espressif universal Wi-Fi+BT+BLE MCU module is used, which is powerful and versatile. The biggest feature of this module is that it supports Python language development, which means that embedded hardware function codes that used to take days to write can now be solved in just ten minutes or even a few lines of code based on Micro python.
Power supply voltage V+: DC 3.6V~6V input (USB port is recommended for power supply);
Onboard 3.3V output port, maximum current 250mA;
On-board lithium battery input interface and charging circuit, the red light is always on when charging;
Blue LED is connected to pin 2;
KEY is connected to pin 0;
I2C supports any IO port;
PWM supports any IO port;