1. ESP32C3 SUPERMINI is an I0T mini development board based on the ESPRESSIF ESP32-C3 WIFI/Bluetooth dual-mode chip. ESP32-C3 is a 32-bit RISC-VCPU that includes an FPU (floating point unit) that can perform 32-bit single-precision operations and has powerful computing power. It has excellent RF performance and supports IEEE 802.11 B/G WIFI and Bluetooth 5 (LE) protocols. 2. The board comes with an external antenna to enhance the signal strength of wireless applications. It also has a small and exquisite appearance combined with a single-sided mount design. It is equipped with rich interfaces, with 11 digital I/O that can be used as PWM pins and 4 analog I/O that can be used as ADC pins. 3. It supports four serial interfaces such as UART, I2C and SPI. There is also a small reset button and a bootloader mode button on the board. ESP32-C3 SUPERMINI is positioned as a high-performance, low-power, and cost-effective IoT mini development board, suitable for low-power IoT applications and wireless wearable applications. 4. Note: If external power supply is required, just connect the external power supply + level to the 5V position and GND to the negative pole. (Support 3.3-6V power supply). Remember that when connecting an external power supply, you cannot connect to USB. You can only choose one between USB and external power supply. Be careful not to short-circuit the positive and negative poles during welding to burn the battery and equipment. 5. Instructions: Enter download mode: and hold the BOOT button of ESP32C3, then the RESET button, release the RESET button, and then release the BOOT button. At this time, ESP32C3 enter download mode. (You need to re-enter download mode every time you connect. Sometimes, if you it once, the port be unstable and disconnected. You can judge it by the port recognition sound) CPU: ESP32-C3, 32-bit RISC-V single-core processor Operating frequency: 160MHZ Main frequency: 160M : 400KB ROM: 374KB ADC: 2*12-BIT SARADC, 6 CHANNELS WIFI: 802.11B/G protocol, 2.4GHHZ, supports STATION mode, SOFTAP mode, SOFTAP+STA-TION mode, mixed mode. Bluetooth: BT 5.0 Power consumption: Deep sleep power consumption is about 43MA Rich on-chip resources: 400KB , 384KB ROM Rich interfaces: 1Xl2C, 1XSPI, 2XUART, 11XGPIO (PWM), 4XADC Single-sided components, mount design Classic appearance, suitable for wearable devices and small projects Reliable security functions: support -128/256, hash, , HMAC, digital signature and secure boot encryption hardware accelerator Onboard LED blue light, GPIO8 pin Size: 22.50x37.40MM Note:Due to different factory batches, slight differences in appearance not affect usage. Colour:As Shown Material:ABS Package Contents: 5 * ESP32-C3 MINI Development Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.