Ai-Thinker PB-03M-Kit is a development board designed for the PB-03M module, built around the PHY6252 low-power Bluetooth SoC platform. This Ai-Thinker PB-03M-Kit is intended for BLE 5.2 evaluation, embedded debugging, rapid prototyping, and secondary development in IoT, smart home, wearable, and portable device projects. The PB-03M-Kit makes development easier by bringing the PB-03M BLE module out to a developer-friendly board format with standard pin headers, on-board antenna, and flexible interfaces. For engineers working on BLE Mesh, wireless control, low-power embedded systems, and product verification, the Ai-Thinker PB-03M-Kit provides a practical way to test firmware, evaluate radio behavior, and speed up development. Features Development board designed specifically for the PB-03M BLE module Based on the PHY6252 low-power Bluetooth SoC platform with support for BLE 5.2 Supports Bluetooth rates of 125Kbps, 500Kbps, 1Mbps, and 2Mbps Rich interfaces including UART, GPIO, ADC, PWM, I2C, SPI, PDM, and DMA Supports multiple sleep modes, with official materials stating deep sleep current below 1uA Supports serial local upgrade and remote firmware upgrade (FOTA) Universal AT commands for fast integration and debugging Supports secondary development with an integrated Windows development environment DIP-20 board format with 2.54mm pitch standard pin header for convenient bench testing On-board PCB antenna for simple evaluation and wireless prototyping Specifications Parameter Details Brand Ai-Thinker Model PB-03M-Kit Suitable Module PB-03M Core Platform PHY6252 Board Type BLE development board Package DIP-20, 2.54mm pitch standard pin header Size 48.3 x 25.5 mm (+/-0.2 mm) Antenna On-board PCB antenna Frequency 2400 to 2483.5MHz Bluetooth BLE 5.2 Power Supply 5V, current above 200mA Interface UART, GPIO, ADC, PWM, I2C, SPI, PDM, DMA Available IO 15 UART Rate Default 115200bps Security AES-128 Flash 256KB Operating Temperature -40C to 85C Storage Temperature -40C to 125C, less than 90%RH Power Consumption Deep sleep 1.2uA, shutdown 0.5uA, TX at 8dBm 11.5mA, baseboard current 4mA Applications BLE 5.2 evaluation and debugging for the PB-03M module IoT and smart home product prototyping based on low-power Bluetooth connectivity BLE Mesh and wireless control project development Firmware testing, AT command validation, and embedded communication experiments Portable devices, wearable electronics, and engineering setups that need a practical BLE development board Other Content Ai-Thinker PB-03M-Kit is intended as a developer-facing board for working with the PB-03M module and the PHY6252 Bluetooth platform. Compared with the bare module, the PB-03M-Kit makes it easier to access interfaces, power the hardware directly, and perform rapid validation during firmware development and functional testing. Official materials position the broader PB series for smart lights, smart sockets, smart air conditioners, and other connected home appliances. In that context, the Ai-Thinker PB-03M-Kit is a practical board for engineers who want to evaluate low-power Bluetooth communication, test BLE Mesh workflows, and accelerate secondary development before moving to production hardware. Resources Ai-Thinker PB series official topic page PB-03M-Kit specification PHY6252 chip datasheet PB-03M-Kit schematic PB-03M series CE RED certificate PB-03M series FCC certificate FAQ Is the PB-03M-Kit a module or a development board? The Ai-Thinker PB-03M-Kit is a development board designed for the PB-03M module, making it easier to test and develop BLE applications. What Bluetooth version does the PB-03M-Kit support? According to the official specification, the PB-03M-Kit supports BLE 5.2 with data rates of 125Kbps, 500Kbps, 1Mbps, and 2Mbps. Is the PB-03M-Kit suitable for IoT and smart home development? Yes. The Ai-Thinker PB-03M-Kit is suitable for IoT, smart home, BLE Mesh, and low-power wireless development scenarios. Does the PB-03M-Kit support AT commands and firmware upgrades? Yes. Official materials state support for AT commands, serial local upgrade, remote firmware upgrade (FOTA), and secondary development.
