product features

PRODUCT FEATURES

Functional structure diagram: TTL serial port and Bluetooth data transparent transmission

Support BLE Bluetooth 5.0 protocol

Built-in 32-bit MCU, clocked at 64MHz

160k programming space, 20KB RAM

Built-in 64KB RAM, 500KB FLASH

Support wide voltage 2.5V ~ 3.6V, single power supply

Rich peripheral interfaces: UART/PWM*5/GPIO*11/ADC

Industrial grade working temperature: -40℃ to 85℃

Product Structure

PRODUCT STRUCTURE

Hardware description

HARDWARE DESCRIPTION

(Module size drawing)

(Module pin description)

(Typical application circuit)

Test case

TESTING CASE

Connect the module to the test board correctly, connect the module to the computer through a USB cable, and use the serial port debugging tool on the computer to open the corresponding serial port:

Open the transparent transmission test APP on the mobile phone, click the Bluetooth device name corresponding to the module to connect, if it does not appear, you can pull down the interface to scan again;

After the connection is successful, the status LED of the module will become connected. At this time, you can send data to the serial port of the module in the serial port debugging tool on the computer, and the sent content will be received and displayed by the mobile phone APP as it is.

Send data from the transparent transmission test APP on the mobile phone to the module. The content sent will be received by the module as it is and output to the module serial port. The received data can be seen in the serial port debugging tool on the computer. The effect is as shown in the figure below: