Features and Application:

Features:

• Repeat automatically

• GFSK modulation

• 40 channels

• 4 bytes Net ID

• Default 2 bytes Node ID

• Serial parameters configurable

• RSSI

• TTL/RS232/RS485/for option

• Max output power: 100mw for option

• Frequency band: 433/470/868/915Mhz for option

• Sensitivity up to -121 dBm

• Working temperature: -40 ~ +85 °C

Applications:

• Robot control

• Remote control telemetry

• Industrial data acquisition

• Wireless data communication

• Access control system

• Remote meter reading

• Security system

• Home automation

Specification:

Electrical characteristics:

Functional description:

Application circuit

The typical schematic circuit is as below:

Note: The ground pin of the module and device should be connected together

Operation

1) Power on Reset

Standard supply voltage of 5V (ordinary lithium battery of 4.2V is also applicable)，After powered on reset, the TX LED (Red) and RX LED (Blue) will blink 3 times,（If no lights, the module may damaged）, The total reset time is around 2s, as below:

2) Working Mode

The CS and SET Pin is internally pulled up. Pull CS pin high or leave it open will make LoRa611 enter into working mode.

In working mode, LoRa611 stay in receiving mode and wait for the series signal and RF signal.

Lora611 can connect with any device which is a standard TTL interface.

• When the series signal comes, LoRa611 will check the input series signal if there is any error, and then transmit the received data out via RF automatically if no errors found.

• When RF signal comes, LoRa611 will check the input RF signals if there is any error, and then transmit the received data out via series port automatically if no errors found.

• When one packet is transmitted successfully, the Red LED will blink once.

• When one packet is received and verified with no problem, the Blue LED will blink once.

The easiest way to test the module is by using a computer( PC software)

Pin and dimension:

pin definition:

Mechanical dimension:

FAQ:

A. Why module cannot communicate properly?

1) Check if there is a power connection error;

2) Check if the module is enabled (CS / SET both high);

3) Check if the band, channel, rate, NET ID has set to the same;

4) Check if the module is damaged(light is on?)

B. Why transmission distance is not as far as it should be?

1) Power supply ripple is too large;

2) The antenna types do not match, or not properly installed;

3) The surrounding environment is harsh, strong interference sources;

4) Surrounding co-channel interference;

C. Why receiving data incorrect?

1) Check if the interface compatible with the device;

2) Improper parameter settings.

3) The module data interface is bad.