Users Manual

RF1276 LoRa module V3.0
- 3 - 2018-2-12
4. Maximum specification
Symbol Parameter Min Max Units
VCC Supply Voltage 4.5 5.5 V
TOT Operation Temperature -30 85 ℃
HOH Operation Humidity 10% 90%
TST Storage Temperature -55 125 °C
5. Pin Out:
RF1276 module has 5 pins. Refers to the Table 1：
RF1276
Pin NO. Pin Name Description
1 VCC Power supply DC 4.5V-6.5V
2 GND Grounding of Power Supply
3 RXD Serial input, 485+/485A
4 TXD Serial output, 485-/485B
5 AUX Data in/out indication
Table 1: Pin definition
6. Working mode
a. Standard mode
Standard mode is also called transparent mode in which the module receives from or sends data to the host
through serial port (RS232 or RS485) at preset data format and users don’t need to care about the proce ss of
data inside the module. The AUX pin of RF1276 will give indication about the data IN/OUT of serial port
2ms in advance in order to wake up the host.