GERUI 4pcs ESP32 C3 Development Board Supports WiFi Bluetooth 4MB Flash

Powerful CPU: ESP32-C3, 32-bit RISC-V single core processor with a running frequency of up to 160 MHz, WiFi: 802.11B/G/N protocol, 2.4GHHZ, support station mode, softap mode, soft AP+station mode, hybrid mode, Bluetooth: Bluetooth: OTHOTH 5.0 Ultra low power consumption: ESP32 C3 has a deep sleep power consumption of about 43MA, with 400KB built-in SRAM and 384KB ROM storage as well as 4MB built-in flash memory Reliable security features: support for AES-128/256, hash RSA、HMAC、 hardware accelerator for digital signature and secure boot encryption Invoke Download Mode :Hold down the BOOT button of ESP32 C3, then press the RESET button, release the RESET button, then release the BOOT button. At this time, the ESP32 C3 will enter download mode. Power supply: (supports 3.3-6V power supply). Remember that you cannot connect to the USB when connecting the external power supply. You can only choose between USB and external power supply.