Description
ESP32-C3-WROOM-02 is the general-purpose Wi-Fi and Bluetooth LE modules. The rich set of peripherals and high performance make this modules an ideal choice for smart homes, industrial automation, health care, consumer electronics, etc. ESP32-C3-WROOM-02 is feature a 4 MB external SPI flash and comes with a on-board PCB antenna. ESP32-C3 has a 32-bit RISC-V single-core processor. It integrates 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, ADC, etc. It also includes SPI, Dual SPI and Quad SPI interfaces.
Block Diagram
Pin Layout (Top View)
Pin Description
Name |
Pin Number |
Type |
Function |
3V3 |
1 |
P |
Power supply |
EN |
2 |
I |
High: on, enables the chip. Low: off, the chip powers off. Note: Do not leave the EN pin floating |
IO4 |
3 |
I/O/T |
GPIO4, ADC1_CH4, FSPIHD, MTMS |
IO5 |
4 |
I/O/T |
GPIO5, ADC2_CH0, FSPIWP, MTDI |
IO6 |
5 |
I/O/T |
GPIO6, FSPICLK, MTCK |
IO7 |
6 |
I/O/T |
GPIO7, FSPID, MTDO |
IO8 |
7 |
I/O/T |
GPIO8 |
IO9 |
8 |
I/O/T |
GPIO9 |
GND |
9 |
P |
Ground |
IO10 |
10 |
I/O/T |
GPIO10, FSPICS0 |
RXD |
11 |
I/O/T |
GPIO20, U0RXD |
TXD |
12 |
I/O/T |
GPIO21, U0TXD |
IO18 |
13 |
I/O/T |
GPIO18, USB_D |
IO19 |
14 |
I/O/T |
GPIO19, USB_D+ |
IO3 |
15 |
I/O/T |
GPIO3, ADC1_CH3 |
IO2 |
16 |
I/O/T |
GPIO2, ADC1_CH2, FSPIQ |
IO1 |
17 |
I/O/T |
GPIO1, ADC1_CH1, XTAL_32K_N |
IO0 |
18 |
I/O/T |
GPIO0, ADC1_CH0, XTAL_32K_P |
Note: P: power supply; I: input; O: output; T: high impedance.
Feature
- Equipped with RISC-V 32-bit single-core processor, the operating frequency is up to 160 MHz with 400 KBSRAM, 384 KB ROM, 8KB RTC SRAM n
- On-board PCB antenna
- Support IEEE 802.11 b/g/n-compliant, Bluetooth BLE 5
- Rich peripheral interfaces, including GPIO, UART, SPI, I2S, I2C, ADC, LED PWM controller, temperature sensor, remote control peripheral, general DMA controller, TWAI® controller, USB Serial/JTAG controller, temperature sensor, SAR ADC, general-purpose timers, watchdog timers
Specification
- Model: ESP32-C3-WROOM-02-H4
- Antenna form: onboard PCB antenna
- 4 × virtual Wi-Fi interfaces
- Operating temperature:-40℃~105℃
- Power supply range:3.0~3.6V
- support interface:UART/GPIO/ADC/I2C/I2S
- Bluetooth:Bluetooth 5.0
- SPI Flash: 4MB
Package List
- 1x ESP32-C3-WROOM-02-H4
Wiki & External link