# Olimex ESP32-H2-DevKit-LiPo > Ultra-affordable open-source ESP32-H2 dev board for Thread, Zigbee, and Matter — BLE 5, LiPo charging, Qwiic/Stemma, dual USB-C, for €5.95. ## Quick Facts - **Brand:** Olimex - **Board Type:** dev-board - **Price:** ~$6.5 - **Product Readiness:** consumer - **CPU:** RISC-V single-core @ 96MHz - **CPU Architecture:** RISC-V RV32IMAC - **CPU Cores:** 1 - **RAM:** 320KB SRAM - **Flash:** 4MB - **USB:** 2× USB-C (serial + native JTAG) - **Power:** USB-C or LiPo battery - **Operating Voltage:** 3.3V - **Operating Temp:** -40°C to +85°C - **Dimensions:** 48 × 25mm - **Battery:** LiPo (external, via connector) - **Charging Port:** USB-C - **Antenna:** Built-in PCB antenna ## Connectivity - **Bluetooth:** BLE 5.0 - **Thread:** Thread 1.3 - **Zigbee:** Zigbee 3.0 - **Matter:** Matter over Thread ## Open Source - **Firmware:** Yes - **Schematics:** Yes - **PCB Layout:** Yes ## Compatible Firmware arduino, esp-idf, esphome, platformio ## Use Cases - matter-smart-home - matter-smart-home - smart-home - thread-mesh-network - iot - prototyping - battery-powered-sensor-node - zigbee-gateway ## Components - **ESP32-H2** (mcu): Espressif ESP32-H2 SoC with RISC-V @ 96MHz, 4MB flash, 320KB RAM, BLE 5, and IEEE 802.15.4 for Thread/Zigbee/Matter. No WiFi. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32-h2_datasheet_en.pdf&ref=openhardware.directory&product=olimex-esp32-h2-devkit-lipo&source=md-export) - **battery-charger-h2** (battery-charger): Onboard LiPo battery charger with JST connector and battery measurement circuitry. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FOLIMEX%2FESP32-H2-DevKit-Lipo&ref=openhardware.directory&product=olimex-esp32-h2-devkit-lipo&source=md-export) ## Protocols - **I2C**: - **SPI**: - **UART**: - **UEXT**: - **Qwiic**: ## GPIO Map | Pin | Name | Type | Functions | |-----|------|------|-----------| | GPIO0 | GPIO 0 / ADC | — | digital-input, digital-output, adc | | GPIO1 | GPIO 1 / ADC | — | digital-input, digital-output, adc | | GPIO2 | GPIO 2 / ADC | — | digital-input, digital-output, adc | | GPIO3 | GPIO 3 / ADC | — | digital-input, digital-output, adc | | GPIO4 | GPIO 4 / SDA | — | digital-input, digital-output | | GPIO5 | GPIO 5 / SCL | — | digital-input, digital-output | | GPIO6 | GPIO 6 / UART TX | — | digital-input, digital-output | | GPIO7 | GPIO 7 / UART RX | — | digital-input, digital-output | | GPIO8 | GPIO 8 / SPI CLK | — | digital-input, digital-output | | GPIO9 | GPIO 9 / BOOT | — | digital-input, digital-output, strapping | | GPIO10 | GPIO 10 / SPI MOSI | — | digital-input, digital-output | | GPIO11 | GPIO 11 / SPI MISO | — | digital-input, digital-output | | GPIO12 | GPIO 12 / SPI CS | — | digital-input, digital-output | | GPIO13 | GPIO 13 | — | digital-input, digital-output | | GPIO14 | GPIO 14 | — | digital-input, digital-output | | GPIO22 | GPIO 22 | — | digital-input, digital-output | | GPIO23 | GPIO 23 | — | digital-input, digital-output | | GPIO24 | GPIO 24 | — | digital-input, digital-output | | GPIO25 | GPIO 25 | — | digital-input, digital-output | ## Available Software - **[arduino]()** (open-source) - **[ESP-IDF]()** (open-source) - **[esphome]()** (open-source) - **[platformio]()** (open-source) ## Description ## Overview The Olimex ESP32-H2-DevKit-LiPo is one of the most affordable open-source hardware options for developing Thread, Zigbee, and Matter devices. At under €6, it delivers the Espressif ESP32-H2 SoC — a RISC-V core at 96MHz with IEEE 802.15.4 and BLE 5 connectivity — in a compact 48×25mm breadboard-friendly form factor. Unlike ESP32-C6, the ESP32-H2 has no Wi-Fi radio, making it purpose-built for 802.15.4 mesh networks. This results in lower power consumption, with deep sleep current as low as 10µA, ideal for battery-powered Thread end devices and Zigbee sensors. The board integrates a LiPo battery charger and connector for portable deployments. Two USB-C ports are provided — one with a serial converter for programming, one directly connected to the ESP32-H2's native USB/JTAG. A Qwiic/Stemma QT connector provides easy I2C sensor expansion, while the pUEXT connector supports the Olimex UEXT module ecosystem. Full hardware design files (schematics, KiCad sources) are on GitHub, and the board is OSHW certified (UID BG000098). Compatible with ESP-IDF, Arduino IDE, and ESPHome (via OpenThread component for Thread/Matter integration). ## Where to Buy - [Olimex](https://openhardware.directory/r?to=https%3A%2F%2Fwww.olimex.com%2FProducts%2FIoT%2FESP32-H2%2FESP32-H2-DevKit-LiPo%2F&ref=openhardware.directory&product=olimex-esp32-h2-devkit-lipo&source=md-export) — 5.95 - [The Pi Hut](https://openhardware.directory/r?to=https%3A%2F%2Fthepihut.com%2Fproducts%2Folimex-esp32-h2-devkit-lipo&ref=openhardware.directory&product=olimex-esp32-h2-devkit-lipo&source=md-export) — 8.50 ## Resources - [product](https://openhardware.directory/r?to=https%3A%2F%2Fwww.olimex.com%2FProducts%2FIoT%2FESP32-H2%2FESP32-H2-DevKit-LiPo%2Fopen-source-hardware&ref=openhardware.directory&product=olimex-esp32-h2-devkit-lipo&source=md-export) - [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FOLIMEX%2FESP32-H2-DevKit-Lipo&ref=openhardware.directory&product=olimex-esp32-h2-devkit-lipo&source=md-export) ## Tags `esp32-h2`, `thread`, `zigbee`, `matter`, `ble`, `open-hardware`, `cern-ohl`, `lipo`, `breadboard`, `802.15.4` ## Images ![Olimex ESP32-H2-DevKit-LiPo](https://nbg1.your-objectstorage.com/openhardware-directory/entities/olimex-esp32-h2-devkit-lipo/f0427bdeb7c4.jpg) ![Olimex ESP32-H2-DevKit-LiPo](https://nbg1.your-objectstorage.com/openhardware-directory/entities/olimex-esp32-h2-devkit-lipo/4b7cd669259b.jpg) ![Olimex ESP32-H2-DevKit-LiPo](https://nbg1.your-objectstorage.com/openhardware-directory/entities/olimex-esp32-h2-devkit-lipo/507fb4eea0f5.jpg) ![Olimex ESP32-H2-DevKit-LiPo](https://nbg1.your-objectstorage.com/openhardware-directory/entities/olimex-esp32-h2-devkit-lipo/88836c949fe1.jpg) ![Olimex ESP32-H2-DevKit-LiPo](https://nbg1.your-objectstorage.com/openhardware-directory/entities/olimex-esp32-h2-devkit-lipo/0e4cb3239c03.jpg) ![Olimex ESP32-H2-DevKit-LiPo](https://nbg1.your-objectstorage.com/openhardware-directory/entities/olimex-esp32-h2-devkit-lipo/f9babcb6ad8f.jpg) ![Olimex ESP32-H2-DevKit-LiPo](https://nbg1.your-objectstorage.com/openhardware-directory/entities/olimex-esp32-h2-devkit-lipo/fcca3f3f5f6a.jpg) ![Olimex ESP32-H2-DevKit-LiPo](https://nbg1.your-objectstorage.com/openhardware-directory/entities/olimex-esp32-h2-devkit-lipo/f89e470fb6fa.jpg) > **Battery Powered:** Li-Po --- [View full device page](https://openhardware.directory/devices/olimex-esp32-h2-devkit-lipo)