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.
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
Wiki & External link
