Wireless-tag nRF51822 ble 4.2 module WT51822-S4AT electronics parts Ultra Low power ble module 4.2 pcb antenna with CE FCC

WT51822-S4AT is a high performance ,low power radio transmit and receive system module use Nordic BLE 4.1 nRF51822 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 Bluetooth 4.1(compatible with BLE4.0) protocol stack S110 drive. 

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 Bluetooth 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 bluetooth master devices
 Operating distance: 0~45m，class II level
 Support System: IOS & Android
 Supply voltage:3.3V
 Module comes with PCB antenna, optional