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# ESP32-C3 Development Board
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<a href="https://www.tindie.com/stores/sonocotta/?ref=offsite_badges&utm_source=sellers_andrey-malyshenko&utm_medium=badges&utm_campaign=badge_medium"><img src="https://d2ss6ovg47m0r5.cloudfront.net/badges/tindie-mediums.png" alt="I sell on Tindie" width="150" height="78"></a>
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<br />
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[](https://discord.gg/PtnaAaQMpS)
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The ESP32 C3 Nano is an Arduino Nano compatible development board, designed to provide enhanced computing power, wireless connectivity, addressable LED capabilities, and a built-in programming and debugging interface.
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It is based on the ESP32 C3 chip, which provides improved processing capabilities, increased memory, and wireless connectivity compared to traditional Atmega variant.
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The board maintains compatibility with the Arduino Nano form factor, ensuring easy integration into existing projects and making it a drop-in replacement for the traditional Arduino Nano board.
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## Features
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- [ESP32-C3](https://www.espressif.com/en/products/socs/esp32-c3) 32-bit RISC-V MCU in a 32-pin package
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- Up to 160 MHz CPU clock
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- 4 MB Flash
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- 400 KB SRAM
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- WiFi and BLE
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- Native USB for flashing and debugging
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- Onboard 3V3 LDO (disconnected for low power applications)
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- Flash using Arduino IDE, Platformio, or the IDE of your choice
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- One RGB LED (WS2812B)
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- RESET button
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## ESP32-C3
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ESP32-C3 is an entry-level 32-bit MCU in the ESP32 line. Generally they offer similar feature set compared to other ESP32 chips, but designed to be low-cost from the start, including popular communication interfaces, low power consumption in sleep mode (down to few micro-amps) and ease of use.
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| | ESP8266 | ESP32 | ESP32-C3 | ESP32-S2 | ESP32-S3 |
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|---------------|----------|------------|------------|------------|------------|
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| Cores | 1x L106 | 2x LX6 | 1x RISC-V | 1x LX7 | 2x LX7
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| Max Frequency | 160 Mhz | 240 Mhz | 160 Mhz | 240 Mhz | 240 Mhz
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| Flash | External 1 MB (Typical)| External Up to 16 MB | Internal 4 MB or External | Internal 4 MB or External | Internal 8 MB or External
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| SRAM Total | 160 KB | 320 KB | 400 KB | 320 KB | 520 KB
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| SRAM Usable | 80 KB | 160 KB | 160 KB | 180 KB | 225 KB
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| PSRAM | NA | External 4 MB | NA | Internal 2 MB or Ext | Internal 2 MB or 8 MB or Ext
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| GPIO count | 11 Usable| 34 Total | 22 Total | 43 Total | 45 Total
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| Connectivity | WiFi | WiFi + BT | WiFi + BLE | WiFi | WiFi + BLE
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| USB | No | No | Yes + JTAG | Yes | Yes + JTAG
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| UART | 1+ | 3 | 2 | 2 | 3
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| I2C | 1 | 2 | 1 | 2 | 2
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| SPI | 1 | 4 | 3 | 4 | 4
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| I2S | 1 | 2 | 1 | 1 | 2
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| LCD | No | No | No | No | Yes
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## Board Pinout
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## MCU Pinout
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## How to programm
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To program the ESP32-C3 microcontroller, you may use either Serial upload method or USB Upload. ESP32-C3 Development Board uses USB Upload method.
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You need to connect USB-C cable, it will be used to power the board, flash over USB, serial over USB and JTAG over USB
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### Arduino IDE
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Add [https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json](https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json) to the board manager
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After that you should install **ESP32 by Espressif Systems** from Board Manager
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Select **ESP32 C3 Dev Board** as target and other necessary settings in the board settings after
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Next press Build or Upload button, it should just work (RGB LED will blik white with blinky example)
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### Platformio IDE
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After installing [Plarformio IDE](https://platformio.org/platformio-ide), open sample [arduino project](/firmware/esp32c3-blink). Run `Build` command to install necessary tools and libraries.
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Next run `Upload: esp32-dev-board` task to start upload over USB. `Monitor` task should give you Serial monitor, as long as you have your board connected via USB (Serial port appears right after board boots up).
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## Hardware
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Board schematic can be found in the [hardware](/hardware) section
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| Front | Back |
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|---|---|
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|  | 
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-  ESP32-C3 MCU
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-  WS2812B RGB LED
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-  Programming and Debug port (USB-C)
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-  Hardware Reset button
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-  VIN disconnect - cut this line to disconnect LDO chip and power-on LED, recommended for low-power applications
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## Where to buy
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Available at [Tindie](https://www.tindie.com/products/sonocotta/esp32-c3-development-board)
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## Links
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- [ESP32-C3 Product Page](https://www.espressif.com/en/products/socs/esp32-c3)
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