User's Manual

FB155BC Version 2.0.0
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PIN
NO.
NAME OF SIGNAL FEATURES INPUT/OUTPUT
SIGNAL
LEVEL
1 GND Ground
2 VCC 3.3V DC Input
3 STATUS STATUS LED Output TTL
4 FA_SET Factory Reset Input TTL
5 UART_CTS UART Clear To Send Input TTL
6 UART_RDS UART Ready To Send Output TTL
7 TXD Transfer Data (Data out) Output TTL
8 RXD Received Data (Data in) Input TTL
<Table 4-1 Pin Description>
- Hard Reset(Factory Reset)
To return to the factory reset, input LOW signal (0V) to FA_SET (No 2 PIN) for more than 2
seconds then all the set value shall be changed to the initial factory set value.
- STATUS port
To be used to monitor the status of FB155BC.
To keep LOW(0V) when the two devices are communicable since the connection between
wireless range is smoothly made.
In standby mode for connection with Bluetooth, or connection trial, or searching for around
Bluetooth device will repeat LOW and HIGH.
- UART_CTS/UART_RTS
When the flow control is not used, non connection will not affect the operation of FB155BC.