ESP32-C3
Cost-Effective RISC-V MCU with Wi-Fi & Bluetooth 5 LE
Product Overview
The ESP32-C3 is a safe, secure, and stable MCU with Wi-Fi and Bluetooth 5 (LE) connectivity. Built around a RISC-V single-core processor, it provides an optimal balance of power consumption, security, and cost-effectiveness for a wide range of IoT applications.
32-bit RISC-V Single Core up to 160 MHz
Wi-Fi 4 + Bluetooth 5 LE
Advanced Security Features
Cost-Effective Solution
Technical Specifications
Comprehensive technical details for ESP32-C3
Processing & Memory
| CPU | 32-bit RISC-V single-core processor |
| CPU Frequency | Up to 160 MHz |
| SRAM | 400 KB internal SRAM |
| ROM | 384 KB ROM |
| Flash | Up to 16 MB external flash |
| RTC Memory | 8 KB RTC SRAM |
Connectivity
| Wi-Fi | 802.11 b/g/n (Wi-Fi 4), 2.4 GHz |
| Bluetooth | Bluetooth 5.0 LE, mesh networking |
| Range | 100+ meters (line of sight) |
| Security | WPA3, WPA2/WPA2-Enterprise |
| Antenna | PCB antenna, external antenna support |
Peripherals & Interfaces
| GPIO | 22 programmable GPIOs |
| ADC | 2 × 12-bit SAR ADCs, up to 6 channels |
| Temperature Sensor | Built-in temperature sensor |
| SPI | 3 × SPI |
| I2C | 1 × I2C |
| UART | 2 × UART |
| USB | USB Serial/JTAG controller |
| LED PWM | 6 channels LED PWM controller |
| Timers | 2 × 54-bit general-purpose timers |
Power & Security
| Operating Voltage | 3.0V ~ 3.6V |
| Active Power | ~43 mA (Wi-Fi), ~55 mA (BLE) |
| Light Sleep | 130 μA |
| Deep Sleep | 5 μA |
| Security Engine | RSA-3072, AES-128/256, SHA-256 |
| Secure Boot | Hardware secure boot support |
| Flash Encryption | Hardware flash encryption |
| Operating Temperature | -40°C ~ +105°C |
| Package | QFN32 (5×5 mm) |
Key Features & Benefits
Why ESP32-C3 is ideal for cost-sensitive IoT applications
Open RISC-V Architecture
Future-proof open-source RISC-V processor with growing ecosystem support and no licensing restrictions.
Enhanced Security
Hardware-based security features including secure boot, flash encryption, and cryptographic accelerators for robust protection.
Optimal Cost-Performance
Perfect balance of features, performance, and cost-effectiveness for budget-conscious IoT projects without compromising quality.
Target Applications
Ideal for cost-effective IoT applications requiring reliable connectivity
Smart Home Devices
Cost-effective smart plugs, switches, and sensors for mainstream smart home applications.
Wearable Electronics
Fitness trackers, health monitors, and wearable devices with efficient power consumption.
Industrial Sensors
Secure industrial monitoring and sensing applications with wireless data transmission.
Consumer Electronics
Connected appliances, toys, and consumer devices requiring cost-effective Wi-Fi connectivity.
Development Resources
Comprehensive tools and resources for ESP32-C3 development
ESP-IDF Framework
Full ESP-IDF support with RISC-V toolchain and comprehensive APIs for all ESP32-C3 features.
Development GuideArduino IDE Support
Easy development with Arduino IDE and extensive library ecosystem for rapid prototyping.
Arduino GuideSecurity Development
Security features implementation guide including secure boot, encryption, and secure communication.
Security GuideOrdering Information
Available ESP32-C3 variants and modules
| Part Number | Flash | Package | Features | Status |
|---|---|---|---|---|
| ESP32-C3 | - | QFN32 | Base chip, requires external components | In Stock |
| ESP32-C3-WROOM-02 | 4MB | Module | Integrated antenna, pre-certified | In Stock |
| ESP32-C3-WROOM-02U | 4MB | Module | External antenna connector | In Stock |
| ESP32-C3-MINI-1 | 4MB | Compact Module | Ultra-compact design | In Stock |
Ready to Build with ESP32-C3?
Start your cost-effective IoT project with ESP32-C3. Contact our team for competitive pricing and technical guidance.