CPU: ESP32-C3, 32-bit RISC-V single core processor
Operating frequency: 160 MHz
Main frequency: 160M
SRAM: 400KB
ROM: 374KB
ADC: 2 * 12-bit SARADC, 6 channels
WiFi: 802.11b/g/n protocol, 2.4GhHz, supports Station mode, SoftAP mode, SoftAP+Station mode, hybrid mode
Bluetooth: BT 5.0
Power consumption: Deep sleep power consumption is about 43 μ A
Rich on chip resources: 400KB SRAM, 384KB ROM
Rich interfaces: 1xI2C, 1xSPI, 2xUART, 11xGPIO (PWM), 4xADC
Single sided components, surface mount design
Classic appearance, suitable for wearable devices and small projects
Reliable security features: Encryption hardware accelerator supporting AES-128/256, hashing, RSA, HMAC, digital signature, and secure boot
On board LED blue light, GPIO8 pin
Attention:
If external power supply is required, simply connect the external power supply+level to the 5V position and connect the GND to the negative pole. (Supports 3.3-6V power supply). Remember that when connecting to an external power source, USB cannot be connected, and only one can be selected between USB and external power supply.
2. Please be careful not to short-circuit the positive and negative electrodes during welding, which may burn out the battery and equipment.
Instructions for use:
Enter download mode: Press and hold the BOOT button of ESP32C3, then press the RESET button, release the RESET button, and then release the BOOT button. At this point, ESP32C3 will enter download mode. (Every time you connect, you need to re-enter the download mode. Sometimes, if you press it once, the unstable port will disconnect, which can be determined by identifying the sound through the port.)