Description
Product parameters:
Bluetooth protocol Bluetooth Specification V3.0 SPP +V4.2 BLE
Operating frequency 2.4GHz ISM band
Communication interface UART
Power supply MIN:1.8V-MAX:3.6V (recommended 3.3V)
Communication distance 40M (open environment)
Dimensions 16.1mm x 11.4mm x 2 mm
Bluetooth certification ROHS REACH FCC CE
Bluetooth name BT04-E (customizable)
Pairing code 1234 (SPP protocol valid)
Serial port parameters 9600, 8 data bits, 1 stop bit, no parity, no flow control
Service UUID FFE0
Notify UUID FFE1
Write UUID FFE2
Storage temperature MIN:-40°C - MAX:+140°C
Work temperature MIN:-20°C・MAX:+85°C
Pin Name Type Pin Description
UART_TX CMOS output Serial data output
UART_RX CMOS input Serial data input
VCC power input power supply V3.3
GND Ground Ground
KEY bidirectional can be disconnected (200ms low pulse disconnect)
RESETB CMOS input reset/reset key (low level reset)
P31 Output module disconnect indicator (see other configurations)
P13 Output Connection status indication LED port (see other configurations)
P33 bidirectional programmable input/output port
