BLE Data Transmission Module
Product Overview
BT4531 is a BLE data transmission module, based on BLE 5.2 SoC chip (ARM Cortex-M0 32-bit processor, up to 64MHz working frequency) with 256KB Flash and 48KB RAM, features a high performance 2.4GHz transceiver, equipped with an on-board PCB antenna and the external antenna is optional with connector. The module communicates with an external MCU via UART to quickly set up wireless connection and data transfer between BLE peripheral devices and BLE central devices (such as mobile phones and tablets). The external MCU has a low resource occupation and makes it easy for the developer to solve complex wireless communication challenges and accelerate time to market.
Module Features
⚫ 32-bit ARM Cortex-M0 processor with frequency up to 64MHz;
⚫ Supports BLE protocol 5.2 and Bluetooth Mesh;
⚫ Up to 256KB of FLASH and 48KB of RAM;
⚫ Support universal serial interface UART communication with the host MCU, the baud rate can be 9600bps to 500000bps;
⚫ Default connection interval is 30 millisecond for fast connection
⚫ Support LE 1M / 2M PHY and LE Coded PHY
⚫ Can be used as a BLE data transmission module or as an MCU alone;
BLE Low Energy Data Transmission Module
HM-BT220X is a BLE data transmission module, based on a BLE 5.2 SoC chip (ARM Cortex-M33 32-bit processor, up to 76.8MHz working frequency), embedded with a 2.4GHz transceiver, equipped with an on-board PCB antenna. The module communicates with an external MCU to quickly set up wireless connection and data transmission between BLE slave devices and BLE master devices (such as mobile phones and tablets). The external MCU has a low resource occupation and the development process is very easy.
After the module is started, it will automatically broadcast. The mobile device that has opened a specific APP will scan and connect with the module. After successful connection, the module can be operated through
the BLE protocol. The external MCU can carry out wireless communication with the mobile device through the serial port of the module, and the external MCU can also send the control commands to change the communication parameters through the serial port of module. The user’s data format is defined by the upper application. The mobile device can send data to the module through the APP, and then the data will be send to the external MCU through the serial port of module. After the module receives the data packet from the external MCU, it will automatically forward it to the connected mobile device. The user needs
to complete the code design of the external MCU and APP running on the mobile device.
Low Energy Pass-through Module
HM-BT4502 / HM-BT4502A is a wireless data pass-through module based on CMT4502 Bluetooth Low Energy 5.0 chip. By connecting with MCU, it can quickly realize the connection and data communication between the module and Bluetooth devices such as smartphones and tablets. MCU takes up less resource and development is simple.
Low Energy Pass-through Module
HM-BT4502B / HM-BT4502B-1 is a wireless data pass-through module based on CMT4502 low-power Bluetooth 5.0 chip. By connecting with MCU, it can quickly realize the connection and data communication between the module and Bluetooth devices such as smart phones and tablets. MCU takes up less resource anddevelopment is simple.