ESP32-C3 DAT

- RISC-V 
- 160MHz 
- RAM：400KB
- QFN32_5x5

Chip

• ESP32-C3FH4 QFN-32

• ESP32-­C3-­WROOM-0­2-DAT

IPEX Antenna Version

• information regarding conn-IPEX-dat
• antenna-DAT

ESP32-C3 Chip Info

• chip page
• https://www.espressif.com/en/products/socs/esp32-c3
• CN DS
• https://github.com/Edragon/ESP32/blob/master/ESP32-C3/esp32-c3_datasheet_cn.pdf
• EN DS
• https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_en.pdf
• Reference manual
• https://www.espressif.com/sites/default/files/documentation/esp32-c3_technical_reference_manual_en.pdf

ESP32-C3 Boards

• ESP32-C3-DAT

• NWI1239-dat - ESP32-­C3-­WROOM-0­2-DAT

• https://w2.electrodragon.com/gollum/search?q=ESP32-­C3-­WROOM-­02-DAT.md

• ESP32-C3-Mini-1-DAT

• ESP-C3-32S-dat

• ESP-C3-12F-dat

models	lifetime	Compatible
ESP-C3-12F-dat	x	ESP-12f-dat

products -

• NWI1126-DAT

Software

• ESP-SDK-dat

Arduino Setup

• arduino json install
• IDF - Secondary development SDK source code address：https://github.com/espressif/esp-idf
• Find ESP32-C3 DEV board in development branch version
• Setup board
  • Board: ESP32C3 DEV Board
  • Upload Speed: 921600
  • CPU Frequency: 160Mhz (WIFI)
  • Flash Frequency: 40Mhz
  • Flash Mode: QIO
  • Flash Size: ?
  • Partion Scheme: Default 4MB with Spiffs
  • Core Debug Level: None

Open Issues

I2C

• https://github.com/espressif/arduino-esp32/issues/5478

Boot Log

If you have a serial USB-TTL bridge board or cable, you can read following debug output from the serial

ESP32-C3S

ESP-ROM:esp32c3-api1-20210207
Build:Feb  7 2021
rst:0x1 (POWERON),boot:0x7 (DOWNLOAD(USB/UART0/1))
waiting for download

ESP32-C3-12F

ESP-ROM:esp32c3-api1-20210207
Build:Feb  7 2021
rst:0x1 (POWERON),boot:0x0 (USB_BOOT)
wait usb download

ESP32-C3 Enter into Flash Mode

• Connect wiring first, TXD->RXD, RXD->TXD, 5V, GND
• Hold down IO9
• Press EN or RST button to restart (re-power) the module
• Now it is enter into flash mode

Hardware Flashing

• notice DPR1039-dat more stable than common PL2303HX

USB

• default as a comm port, and power supplied

• Flash Using USB The USB on the ESP32-C3 uses the GPIO19 for D+ and GPIO18 for D-. The ESP32-C3 supports only USB CDC and JTAG. If you are flashing for the first time, you need to get the ESP32-C3 into the download mode manually. To do so, press and hold the BOOT button and then press the RESET button once.

• USB-dat

• USB console guide - https://docs.espressif.com/projects/esp-idf/en/stable/esp32c3/api-guides/usb-serial-jtag-console.html

The ESP32-C3 supports only USB CDC and JTAG.

If you are flashing for the first time, you need to get the ESP32-C3 into the download mode manually. To do so, press and hold the BOOT button and then press the RESET button once. After that release the BOOT button.

ref

• ESP32-C3