1.Description:
   It is a ESP32-C3 Development Board WIFI USB Programmable MCU Controller System Board.

2.Feature:
  1>.Three power supply modes
  2>.A lot of resources
  3>.Can achieve a variety of functions
 
3.Parameter:
  1>.Model: ESP32-C3
  2>.Work voltage: 5V
  3>.Work temprature：-20~85℃
  4>.Work huimidity: 5%~99%
  5>.Size: 40*30mm
 
4.Pin Definition:

  Left pin
  1>.GND:Ground
  2>.3V3:3.3V power supply
  3>.3V3:3.3V power supply
  4>.I02:GPI02,ADC1_CH2,FSPIQ
  5>.I03:GPI03,ADC1_CH3
  6>.GND:Ground
  7>.EN:High level:chip enable;Low level:the chip is off;Be careful not to let CHIP_EN pin floating
  8>.GND:Ground
  9>.I00:GPI00,ADC1_CH0,XTAL_32K_P  
  10>.I01:GPI01,ADC1_CH1,XTAL_32K_N
  11>.I010:GPI010,FSPICSO
  12>.GND:Ground
  13>.PP5V:5V power supply
  14>.PP5V:5V power supply
  15>.GND:Ground

  Right pin
  16>.GND:Ground
  17>.TX:GPI021,U0TXD
  18>.RX:GPI020,U0RXD
  19>.GND:Ground
  20>.I09:GPI09,BOOT
  21>.I08:GPI08
  22>.GND:Ground
  23>.I07:GPIO7 FSPID,MTDO
  24>.I06:GPI06,FSPICLK,MTCK
  25>.I05:GPI05 ADC2_CH0,FSPIWP MTDI
  26>.I04:GPI04 ADC1_CH4,FAPIHD,MTMS
  27>.GND:Ground
  28>.I018:GPI018,USB_DN
  29>.I019:GPI019,USB_DP
  30>.GND:Ground
 
5.Key Description:
  1>.EN:Lexin module enable pin,when the key is pressed, the module is in reset state;
  2>.ESP-BOOT:BOOT pin of music box module.Press the key to enter the download mode manually.

6.Power options:
  1>.USB port power supply (default);
  2>.5V and G(GND) pin header power supply;
  3>.3V3 and G(GND) pin header power supply.

7.Package:
   1pcs ESP32-C3 Development Board