It uses the ESP32-H2FH4S chip, equipped with a RISC-V 32-bit single-core processor with a main frequency of up to 96MHz and a built-in 4MB Flash memory Integrated BLE 5 and IEEE 802.15.4 (Zigbee 3.0 and Thread) wireless communications for superior RF performance USB Type-C interface, no need to worry about plugging it in the right or wrong direction Leads to a wealth of peripheral interfaces, with strong compatibility and scalability Stamp hole design, can be directly welded and integrated into the base plate designed by the user The ESP32-H2-Zero is an entry-level RISC-V microcontroller development board that integrates Bluetooth Low Energy (BLE) 5 and IEEE 802.15.4 (Zigbee 3.0 and Thread). Compact yet powerful, it features a rich set of peripherals for applications in smart homes, industrial automation, healthcare, and consumer electronics. In terms of hardware, it uses the ESP32-H2FH4S chip, which is equipped with a RISC-V 32-bit single-core processor, supports a main frequency of up to 96MHz, has a built-in 4MB Flash, and integrates a rich set of peripherals, including SPI, UART, I2C, I2S, LED PWM and ADC interfaces. It is compatible with and expands a variety of peripheral devices, making it more convenient to use. (The product printed words may vary depending on the batch, but this does not affect use) Color: As Shown Material: PCB Package Contents: 2 * ESP32-H2FH4S Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.