ESP32 Dev Kit V1
The ESP32 Dev Kit V1 is a development board built around the ESP-WROOM-32 module, which integrates Espressif’s ESP32 dual-core Xtensa LX6 processor running at up to 240 MHz with 520 KB SRAM. Onboard 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 4.2/BLE eliminate the need for external radio components, enabling wireless MQTT connectivity straight out of the box.
Overview
The ESP32 Dev Kit V1 is a compact development board built around the Espressif ESP32-WROOM-32 module. It carries a dual-core Xtensa LX6 processor running at up to 240 MHz with integrated 2.4 GHz Wi-Fi and Bluetooth 4.2, on a 55 x 28 mm board. This page lists the board specification and how it connects to ThingsBoard over MQTT.
Key features
- Dual-core Xtensa LX6 microprocessor at up to 240 MHz
- 520 KB SRAM, 4 MB flash
- Wi-Fi 802.11 b/g/n (2.4 GHz) and Bluetooth 4.2 (Classic and BLE)
- 34 GPIO pins, including capacitive touch, ADC, DAC, I2C, SPI and UART
- Built-in hall effect sensor and internal temperature sensor
- Ultra-low power co-processor for deep sleep modes
- USB-to-UART bridge (CP2102 or CH340) for programming
Device profile
Classification fields, using the same connectivity vocabulary the Hub itself uses for the badges on this page. Connectivity is the roll-up of the three rows below it.
| Field | Value |
|---|---|
| Hardware Type | Development Board |
| Connectivity | Bluetooth, I2C, SPI, UART, USB, Wi-Fi |
| Physical Interface | USB, UART, SPI, I2C |
| Wireless Technology | Wi-Fi, Bluetooth |
| Industrial Protocol | None |
| Application Protocol | MQTT |
Technical specifications
| Parameter | Value |
|---|---|
| Processor | ESP32, dual-core Xtensa LX6 |
| Clock speed | Up to 240 MHz |
| SRAM | 520 KB, plus 16 KB RTC SRAM |
| Flash | 4 MB |
| Wi-Fi | 802.11 b/g/n, 2.4 GHz, up to 150 Mbps |
| Bluetooth | Bluetooth 4.2 Classic and BLE |
| GPIO | 34 pins |
| ADC | 18 channels, 12-bit |
| DAC | 2 channels, 8-bit |
| Bus interfaces | 3x UART, 4x SPI, 2x I2C, 2x I2S, PWM |
| Capacitive touch | 10 channels |
| On-board sensors | Hall effect, internal temperature |
| Co-processor | Ultra-low power co-processor for deep sleep |
| Security | Secure boot, flash encryption, hardware AES / SHA / RSA |
| USB | Micro-USB, CP2102 or CH340 USB-to-UART bridge |
| Operating voltage | 3.3 V |
| Power supply | 5 V via micro-USB |
| Deep sleep current | 10 uA |
| Operating temperature | -40 °C to +85 °C |
| Dimensions | 55 x 28 mm |
| Mounting | Desktop or breadboard |
| Certifications | FCC, CE |
| Toolchains | Arduino IDE, ESP-IDF, MicroPython |
Supported use cases
- IoT prototyping and development boards
- Environment monitoring: temperature, humidity, air quality
- Smart home and smart office automation
- Energy monitoring and data logging
Device technical documentation
Download datasheets and manuals for the ESP32 Dev Kit V1
ESP32 Dev Kit V1 Product page ESP32 Dev Kit V1 DatasheetAdd Your Device to the Community
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