Introduction:
ESP32-C3-Mini-1 is a universal Wi-Fi and low power Bluetooth LE module. The rich set of peripherals and a small size make the two modules an ideal choice for smart homes, industrial automation,health care, consumer electronics, etc.
ESP32-C3-MINI-1-N4 is equipped with ESP32-C3FN4 chip and equipped with 4 MB embedded flash, belonging to esp32-C3 series chip. ESP32-C3 series of chips have a 32-bit RISC-V single-core processor. They integrate a rich set of peripherals, ranging from UART, I2C, I2S, remote control peripheral, LED PWM controller, general DMA controller, TWAI® controller, USB Serial/JTAG controller, temperature sensor, and ADC. It also includes SPI, Dual SPI and Quad SPI interfaces.
Pin Layout:
Pin Description
| Name | No. | Type | Function |
| GND | 1,2,11,14,36-53 | P | Ground |
| 3V3 | 3 | P | Power supply |
| NC | 4,7,9,10,15,17,24, | — | NC |
| 25,28,29,32-35 | |||
| IO2 | 5 | I/O/T | GPIO2,ADC1_CH2,FSPIQ |
| IO3 | 6 | I/O/T | GPIO3,ADC1_CH3 |
| EN | 8 | I | High: on, enables the chip. |
| Low: off, the chip powers off. | |||
| Note: Do not leave the EN pin floating. | |||
| IO0 | 12 | I/O/T | GPIO0,ADC1_CH0,XTAL_32K_P |
| IO1 | 13 | I/O/T | GPIO1,ADC1_CH1,XTAL_32K_N |
| IO10 | 16 | I/O/T | GPIO10,FSPICS0 |
| IO4 | 18 | I/O/T | GPIO4,ADC1_CH4,FSPIHD,MTMS |
| IO5 | 19 | I/O/T | GPIO5,ADC2_CH0,FSPIWP,MTDI |
| IO6 | 20 | I/O/T | GPIO6,FSPICLK,MTCK |
| IO7 | 21 | I/O/T | GPIO7,FSPID,MTDO |
| IO8 | 22 | I/O/T | GPIO8 |
| IO9 | 23 | I/O/T | GPIO9 |
| IO18 | 26 | I/O/T | GPIO18,USB_D- |
| IO19 | 27 | I/O/T | GPIO19,USB_D+ |
| RXD0 | 30 | I/O/T | GPIO20,U0RXD |
| TXD0 | 31 | I/O/T | GPIO21,U0TXD |
Specifications:
- ESP32-C3FN4 embedded, 32-bit RISC-V single-core processor, up to 160 MHz
- 384 KB ROM
- 400 KB SRAM
- 8 KB RTC SRAM
- 4 MB SPI flash
- Operating Voltage/Power Supply: 3.0~3.6V
- Operating Temperature Range: –40~85°C
