# ESP32-C3

> RISC-V based Espressif microcontroller SoC with WiFi and Bluetooth BLE 5.0

**Wikidata**: [Q109641075](https://www.wikidata.org/wiki/Q109641075)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/ESP32-C3)  
**Source**: https://4ort.xyz/entity/esp32-c3

## Summary  
The ESP32‑C3 is a low‑cost, low‑power system‑on‑chip (SoC) microcontroller from Espressif Systems that uses a 32‑bit RISC‑V core, runs at a base clock of 160 MHz, and integrates Wi‑Fi and Bluetooth BLE 5.0 radios in a single package.

## Key Facts  
- **Developer & Manufacturer:** Espressif Systems.  
- **Instruction Set:** RISC‑V 32‑bit core.  
- **Integrated Connectivity:** 802.11 b/g/n Wi‑Fi and Bluetooth BLE 5.0.  
- **Base Clock Frequency:** 160 MHz (determined as the base clock).  
- **Series Position:** Part of the ESP32 family; follows the original ESP32 and is succeeded by the ESP32‑H2 and ESP32‑C6.  
- **Official Product Page:** <https://www.espressif.com/en/products/socs/esp32-c3> (English).  
- **Technical Documentation:** Datasheet available at <https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_en.pdf>.  
- **Aliases:** ESP32‑C3‑32S.  
- **Classification:** Integrated circuit model; subclass of system‑on‑chip, microcontroller, and ESP32.  
- **Image Reference:** ![ESP32‑C3 NodeMCU board](https://commons.wikimedia.org/wiki/Special:FilePath/ESP32-C3_RISC-V_NodeMCU_board.jpg).

## FAQs  
### Q: What type of processor does the ESP32‑C3 use?  
A: It uses a 32‑bit RISC‑V core, making it one of the first ESP32‑series chips to adopt the open‑source RISC‑V instruction set.

### Q: Does the ESP32‑C3 support both Wi‑Fi and Bluetooth?  
A: Yes, the chip integrates 802.11 b/g/n Wi‑Fi and Bluetooth BLE 5.0 radios, enabling simultaneous wireless connectivity.

### Q: What is the maximum clock speed of the ESP32‑C3?  
A: The base clock frequency is specified at 160 MHz.

### Q: How does the ESP32‑C3 relate to other ESP32 variants?  
A: It follows the original ESP32 in the product line and is succeeded by the ESP32‑H2 and ESP32‑C6, which add Zigbee/Thread and higher‑speed Bluetooth respectively.

### Q: Where can I find the official documentation for the ESP32‑C3?  
A : The full datasheet and user manual are available on Espressif’s website at the URL listed above.

## Why It Matters  
The ESP32‑C3 brings the advantages of the open‑source RISC‑V architecture to Espressif’s popular low‑power IoT platform, offering developers a modern, extensible instruction set while retaining the proven Wi‑Fi and Bluetooth connectivity that have made the ESP32 family ubiquitous in embedded projects. Its 160 MHz clock and integrated radios enable a wide range of applications—from smart sensors and wearables to home automation—without the need for separate wireless modules, reducing bill‑of‑materials cost and board complexity. By positioning itself between the original ESP32 and newer variants like the ESP32‑H2 and ESP32‑C6, the ESP32‑C3 serves as a bridge for developers seeking a balance of performance, power efficiency, and ecosystem support, while also fostering the broader adoption of RISC‑V in commercial microcontrollers.

## Notable For  
- First ESP32‑series SoC to adopt a RISC‑V core.  
- Combines Wi‑Fi and Bluetooth BLE 5.0 in a single, low‑power package.  
- Offers a 160 MHz base clock, higher than many earlier ESP32‑based RISC‑V chips.  
- Serves as a transitional product between the classic ESP32 and newer ESP32‑H2/‑C6 models.  
- Supported by comprehensive Espressif documentation and a large community of developers.

## Body  

### Architecture & Core  
- 32‑bit RISC‑V processor core.  
- Base clock frequency of 160 MHz, set as the reference speed for timing calculations.  
- Integrated flash and SRAM options typical of ESP32 family SoCs.

### Wireless Connectivity  
- **Wi‑Fi:** 802.11 b/g/n, supporting both station and soft‑AP modes.  
- **Bluetooth:** BLE 5.0, enabling low‑energy peripheral and central roles.  

### Position in the ESP32 Lineage  
- **Follows:** Original ESP32 (dual‑core Tensilica).  
- **Succeeded by:** ESP32‑H2 (adds Zigbee/Thread, BLE 5.2) and ESP32‑C6 (adds additional BLE features).  

### Development Resources  
- Official product page provides datasheet, SDKs, and reference designs.  
- Community support via Espressif forums, GitHub repositories, and extensive example code.  

### Typical Use Cases  
- Battery‑operated IoT sensors requiring Wi‑Fi and BLE.  
- Wearable devices leveraging low‑power RISC‑V processing.  
- Prototyping boards (e.g., NodeMCU‑style) that need compact wireless integration.  

### Manufacturing & Availability  
- Produced exclusively by Espressif Systems.  
- Marketed under the alias ESP32‑C3‑32S for certain board configurations.  

### Technical Documentation  
- Full datasheet (English) available at the provided URL, detailing pin‑out, electrical characteristics, and peripheral interfaces.  

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