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BlE Low Energy 4.1 Module WT51822-S4AT With AT Command

WT51822-S4AT is a high performance ,low power radio transmit and receive system module use Nordic BLE 4.1 nRF51822-QFAA as the controller chips. It has the smallest volume package in the industry, the size is 18.5*9.1*2.0, suitable for most applications w
Item Code: WT51822-S4AT
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  • Description
Specifications

Description   
  • WT51822-S4AT is a high performance ,low power radio transmit and receive system module use Nordic BLE 4.1 nRF51822-QFAA as the controller chips.
  • It has the smallest volume package in the industry, the size is 18.5*9.1*2.0, suitable for most applications which pay more attention to the size.
  • The module integrate the complete standard low energy BLE 4.0 protocol (compatible with BLE4.0) stack S110 drive.
  • Customer's MCU is connected to the module by UART port, it will automatically send a broadcast code after the module starts.
  • As the master, APP device can scan and search the broadcast from module in order to establish the connection.
  • After success, it can conduct two-way communication link with mobile device APP by serial port.
  • Through UART interface, the user can exchange data or control the communication parameters of module. The meaning of data is defined by the upper application user.
  • The mobile device can operate to the module through APP, the data will receive by the module and pushed through UART MCU.
  • After the module received a data packet from the client MCU serial port, it will be automatically forwarded to the mobile device.

Features
  • Operating temperature: -25℃~75℃, typical 25℃
  • CPU: nRF51822-QFAA (ARM Cortex-M0 32 bit processor)
  • Memory: 256KB flash + 16KB RAM memory
  • Transparent transmission (Bridged method) easy to use and fast, no BLE protocol stack development experience can use too.
  • The user interface uses a standard UART (TTL) Interface, bidirectional data read, easy to operate
  • Supports serial AT commands, the user can modify the basic parameters like the serial port baud rate, name, MAC address of the module, etc.
  • Serial data packet length, single data packet can support data length up to 200byte;
  • Serial hardware enable control, low-power control applications
  • With the support under the test mode but not connect the serial mode, mutual communication between test module and BLE master devices
  • Operating distance: 0~45m,class II le

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