The module's core processor chip ESP32-C3 is a highly integrated low-power WiFi and Bluetooth system-on-chip (SoC), designed for the Internet of Things (IoT), mobile devices, wearable electronic devices, smart homes application, etc.

The ESP32-C3 chip has industry-leading low power consumption performance and radiofrequency performance, and supports WiFi IEEE802.11b/g/n protocol and BLE 5.0. The chip is equipped with a RISC-V 32-bit single-core processor with a working frequency of up to 160MHz. Support secondary development without using other microcontrollers or processors. The chip has built-in 400 KB SRAM, 384 KB ROM, 8KB RTC SRAM, and built-in 4MB Flash. The chip supports a variety of low power consumption working states, which can meet the power consumption requirements of various application scenarios. The chip's unique features such as fine clock gating function, dynamic voltage clock frequency adjustment function, and RF output power adjustable function can achieve the best balance between communication distance, communication rate and power consumption.

The ESP-C3-M1 module provides a wealth of peripheral interfaces, including UART, PWM, SPI, I2S, I2C, ADC, temperature sensor and up to 15 IO interfaces. The ESP-C3-M1 module has a variety of unique hardware security mechanisms. The hardware encryption accelerator supports AES, SHA and RSA algorithms. Among them, RNG, HMAC and digital signature (Digital Signature) modules provide more security features. Other security features include Flash encryption and secure boot (secure boot) signature verification. The perfect security mechanism enables the chip to be perfectly applied to various encryption products. The ESP-C3-M1 module supports low-power Bluetooth: Bluetooth5, Bluetooth mesh. Bluetooth rate support: 125Kbps, 500Kbps, 1Mbps, 2Mbps. Support broadcast extension, multi-broadcasting, channel selection.

Features:-

• Support WiFi 802.11b/g/n, 1T1R mode data rate up to 150Mbps
• Support BLE5.0, rate support：125Kbps，500Kbps，1Mbps，2Mbps
• RISC-V 32-bit single-core processor, supports a clock frequency of up to 160 MHz, has400 KB SRAM, 384 KB ROM, 8KB RTC SRAM
• Support UART/GPIO/ADC/PWM/I2C/I2S/SPI interface, temperature sensor, pulse counter
• SMD-61 Package
• Integrated WiFi MAC/BB/RF/PA/LNA/Bluetooth
• Support multiple sleep modes, deep sleep current is less than 5uA
• Serial port rate up to 5Mbps
• Support STA/AP/STA+AP mode and promiscuous mode
• Support Smart Config (APP)/Air Kiss (WeChat) for Android and IOS one-click network configuration
• Support serial port local upgrade and remote firmware upgrade (FOTA)
• General AT commands can be used quickly
• Support secondary development, integrated Windows and Linux development environment
• About Flash: ESP-C3-M1 chip has built-in 4MByte Flash by default

Specifications:-

• Model : ESP-C3-M1
• Package : SMD-61
• Size : 16.6X13.2X2.4(±0.2)mm
• Antenna : On-board PCB antenna
• Frequency Range : 2400 ~ 2483.5MHz
• Operating temperature : -40 ℃ ~ 85 ℃（C3FN4 Normal temperature version)

                                              -40 ℃ ~ 105 ℃(C3FH4 High temperature version)

• Bluetooth : BLE 5.0,Does not support traditional Bluetooth
• Storage environment : -40 ℃ ~ 125 ℃，< 90%RH
• Power supply range : Voltage: 3.0V ~ 3.6V，Electrical current >500mA
• Support Interface : UART/GPIO/ADC/PWM/I2C/I2S/SPI
• IO : IO0,IO1,IO2,IO3,IO4,IO5,IO6,IO7,IO8,IO9,IO10,IO18, IO19,IO20,IO21
• UART Rate : Support 110 ~ 4608000 bps ，default 115200bps
• Security : WEP/WPA-PSK/WPA2-PSK
• SPI Flash : 4MByte

Package Includes:-

1 x Ai Thinker ESP-C3-M1 WiFi + BLE Module