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Picture of Make Lora Node and Lora Gateway by Using DORJI  DRF1276DM Module

LoRa means long range. LoRa and LORAWAN are two different protocol . We use LoRa protocol . Dorji DRF1276DM (865-915 MHz) is a special LoRa board which contain the Semtech SX1276 LoRa chip and also an MCU chip.

This MCU take care for all the task and parameters needed for the SX1276 chip. The LoRa module receives from or sends data to the host through serial port (UART) at preset data format.The users don’t need to care about the process of data inside the module.

DRF1276DM (EUR , USA & India ) or DRF1278DM (ASIAN) depends on which
zone you are and availability of open frequency. Lets In INDIA , the open communication frequency is 865Mhz to 867 Mhz . You use DRF1276DM module in India by Write 866Mhz in Rf Frequency in Dorji tool .when your area frequency lie between 865Mhz to 868 Mhz.

About the distance, up to 2000 meters should be possible.

Refer a Youtube video :-

Refer the datasheet from Dorji http://www.dorji.com/docs/data/DRF1276DM.pdf . http://www.dorji.com/docs/data/DRF1276DM.pdf

Refer also to http://www.dorji.com/docs/data/DRF1276DM.pdf

Step 1: Supplies

Picture of Supplies
Arduino-Mega-2560-Pinout.jpg
dorji.jpg
raspberry-pi-3.jpg
s-l300.jpg
temp.jpg

Before ordering the module check Antenne are included or not with module. Antenna for 866MHz and 915 MHz are not the same. Order for the correct one.

2x DRF1276DM

2 x UART to USB converter ,( i use CP2102 STC based uart to usb conveter).

1 x Arduino microcontroller (like Arduino mini pro 3.3V 8Mhz,Arduino Uno,Arduino Mega 2560).

1x DHT11 Humidity & Temperature Sensor.

You need some wires then.

1x RASPBERRY Pi 2 or 3.

3x Resistor 10k.

2x Resistor 20k.

1x Breadboard. Wire or copper wire (0.7mm) for the breadboard.

sharjeelz7 months ago
hey Dear
what you have done with Enable pin of Lora 1276DM ?
both pins are grounded of driver ?

Hi, you mentioned the Dorji Tool, but I can't find the place to download it. I also failed to find it with Google. Will you please tell me where I can download this software?

Swansong2 years ago

Thanks for sharing :)