Series:

nRF51822

Name:

WT51822-S4AT

 

WT51822-S4AT is a high-performance, low-power (Bluetooth Low Energy) radio frequency transceiver system module that uses Nordic’s Bluetooth 4.1 nRF51822 as the core processor.

WT51822-S4AT_datasheet_v1.2.3_en 2020-03-08

Description

WT51822-S4AT is a high-performance, low-power (Bluetooth Low Energy) radio frequency transceiver system module that uses Nordic’s Bluetooth 4.1 nRF51822 as the core processor. It has an ultra-small volume package currently used in the industry. 18.5*9.1*2.0, suitable for most application scenarios with high volume requirements, the module integrates a complete standard low-power Bluetooth 4.1 (compatible with 4.0) protocol stack S110 driver.

The customer MCU is connected to the module through the UART port, and the module will automatically send the broadcast code after the module is started. The APP device as the master station can scan and search for the module’s broadcast to establish a connection. After success, it can communicate with the mobile device APP through the serial port Two-way communication connection, the user can exchange data or control the communication parameters of the module through the UART port. The meaning of the data is defined by the upper application user. The mobile device can write to the module through the APP, and the data will be received by the module and pushed to the MCU through UART. After the module receives the data packet from the client MCU serial port, it will automatically forward it to the mobile device.

Feature

> Very small size

> Low-power transparent transmission module

> Support standard Bluetooth BLE 4.2

>2.4G onboard antenna

>Stable RF performance (strong anti-interference)

>The default AT command set is convenient for rapid development

>CE-RED/FCC/ROHS

Application

Electronic scale

e-cigarette

Smart water cup

Smart bracelet

smart watch

Bluetooth toys

Smart hardware

Smart home