Ru Bo Microelectronics E528H-BS20

E528H-BS20 is a compact, convenient EVB development board with multi-interface breakout, designed around the M528H-BS20S module developed in-house by Ruban Microelectronics Co., Ltd. The board integrates LED indicators, push buttons, an LDO voltage regulator, a TYPE-C USB power/debug interface, and standard 2.54mm pitch pin headers, greatly facilitating user debugging, development, and verification. The M528H-BS20 module onboard integrates BLE5.4/SLE1.0 and RF circuitry; the RF section includes a power amplifier PA, low-noise amplifier, TX/RX switch, and integrated power management functionality. The module supports three bandwidths — 1M/2M/4M — with a maximum data rate of 12Mbit/s and extended communication range. The development board supports BLE 1MHz/2MHz bandwidth, is compatible with BLE 4.0/4.1/4.2/5.0/5.1/5.2/5.3 protocols, and supports BLE Mesh and BLE gateway functionality, with a maximum over-the-air rate of 2Mbps. It also supports SLE 1MHz/2MHz/4MHz bandwidth, is compatible with the SLE1.0 protocol and SLE gateway functionality, with a maximum over-the-air rate of 4Mbps. The M528H-BS20 module further integrates a high-performance 32-bit microprocessor and a security processing engine, providing a more open development environment and faster system execution, making it suitable for IoT smart terminal applications such as PC peripherals and smart home appliances.