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BearPi-Pico H2821 Expansion Board

Overview

Thanks to EEWorld for giving me this opportunity to review the BearPi-Pico H2821. Therefore, I designed an expansion board to implement some of its functions.
The BearPi-Pico H2821 is a core board based on a highly integrated 2.4GHz SoC BLE&SLE as the main control chip. It features flexible digital interfaces, with I/O ports reusable for any function. It integrates a high-performance 32-bit microprocessor (MCU), a hardware security engine, and rich peripheral interfaces, including SPI, UART, I2C, PWM, GPIO, USB 2.0, NFC Tag, PDM, I2S/PCM, QDEC, and a KEYSCAN keyboard scanning circuit. It supports 8-channel 13-bit resolution ADCs, and the ADC supports audio AMIC connection. It has built-in SRAM and encapsulated Flash memory, and supports running programs on the Flash.
This expansion board, while bringing out the core board pins, adds three LEDs, three buttons, two potentiometers, and a pin header/female header expansion interface, which can expand the implementation of BearPi-Pico's GPIO, PWM, and ADC experiments.
BearPi-Pico H2821 Official Website: BearPi-Pico H2821 | BearPi
EEWorld BearPi-Pico H2821 Review Summary: Review Summary: BearPi-Pico H2821 Starlight Development Board - Review Center Special Edition - Electronic Engineering World - Forum (eeworld.com.cn)

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2026-03-27 19:44:47

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