Atmega328P Arduino Plus Lora SX1278 Board, Loraduino R1.2

Rated 3.95 out of 5 based on 21 customer ratings
(21 customer reviews)

$2.50$8.80

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Description

MCUs

Other Features

  • Arduino sketch can be uploaded via FTDI side interface.
  • (for 433mhz version) On board wireless radio SX1278 Lora RF95, low power consumption, long transmission distance and low error, board runs on 433MHZ. Distance test can be found here.
  • Lead out SX1278 Lora pin IO1, IO2, IO3.
  • On board SPI flash 8M-bit for data, supported by arduino SPI flash library. (changed from 16m bit to 8m bit  from May 2018)
  • On board LDO regulator AP2112.
  • On board programmerable LED D7.
  • On board MCP73831 smart charge IC. Board can be powered by litihium battery, and charge when 5V power supplied to board.
  • On board power LED, and backside charge status LED.
  • Battery voltage level can be read via A7 pin. (1.0 version used to have on D6, if you must use it please contact us for a replacement.)
  • PH2.0 built battery cable included in package.
  • Board dimension is 23x46mm, arduino pro mini layout.

433mhz-Board Package Includes:

  • Main loraduino board, mounted lora module backside, and PH2.0 battery power jack.
  • 433mhz spring pin antenna.
  • PH2.0 Power cable

Blank-back-Board, LGT 8F328 Board Version Package Includes:

  • Main loraduino board, Without backside lora module and battery socket mounted
  • Separated PH2.0 battery power jack (which block your lora module soldering a little)
  • PH2.0 Power cable

R1.2 Version:

  • Change SPI Flash from 16MBit to 8Mbit.
  • Use pre-build battery cable, the color definition may differ to board, please only refer to attached image, which is correct.
  • Add LGT Version, use LGT logicgreen version 8F328 IC. Tested fully compatible!

Common Questions:

  • No need to add any new board, just use “arduino pro mini – 3.3V/8M” as board when upload new code in arduino IDE

Please buy other frequency lora module here. It requires soldering skills to solder the lora module and power jack.

More documentation please see on this page.

Additional information

Weight N/A
Board Type

, ,

Technology

Lora

21 reviews for Atmega328P Arduino Plus Lora SX1278 Board, Loraduino R1.2

  1. Rated 3 out of 5

    dstamand (verified owner)

    Battery polarity connector is inverted.

  2. Rated 3 out of 5

    Chao

    Yes, sorry for this issue, the very first 20pcs of our stock was built wrong, we should emailed every customer who get this wrong one, please notice.

  3. Rated 4 out of 5

    Michał Szymański (verified owner)

    Link with schema of Loraduino on your documentation page is not accessible “Permission denied” https://www.electrodragon.com/w/File:Loraduino_sch.png

  4. Rated 5 out of 5

    Ricardo Meechan

    I received five units with the LoRa module included however the modules have a shield over them – Does this mean they are the 868mhz version or do the 433mhz also include a shield on the module?

  5. Rated 3 out of 5

    Chao

    Hi, add shield for all version, better against noise.

  6. Rated 5 out of 5

    Ricardo Meechan (verified owner)

    I now have 10 units will the 433mhz module pre-soldered and will be purchasing more soon. They work well with the RadioHead libraries and have been running for a couple of weeks now on one 18650 li-ion battery – i have removed the power LED and use methods to powerdown the radio and Arduino. I still need to check the power consumption during sleep and will report back. It would be nice if it was possible to monitor the battery voltage similar to the Ada Feathers. Also they run at mhz so program as 8mhz Pro Mini. 🙂

  7. Rated 3 out of 5

    Chao

    Hi, yes currently sending version has voltage monitor now from two days ago … on A7 pin.
    But this time missing the charge status LED on the back, probably concern the power use but actually it won’t light up when not charging, we are bad organized and has this missing and imperfect, accept all refunds or review if you are not happy with it. Will add this back as final version soon.
    Have an example code here – https://github.com/Edragon/Arduino/blob/master/Sketchbook/02_LORA/rf95_reliable_datagram_client/rf95_reliable_datagram_client.ino

  8. Rated 4 out of 5

    Samuel (verified owner)

    Looks like a great little board but the documentation (schematic) is not accessible from your link. The schematic that I see online doesn’t show the SPI flash, so it’s not complete.

  9. Rated 4 out of 5

    David Goadby

    These are just what I need for a largeproject so I have just ordered a pair. But, like previous posters, I cannot get access to the schematic. Can someone sort this out please? Poor information and support can kill a very good product.

  10. Rated 5 out of 5

    Bernard Banitz (verified owner)

    Excellent card tested with 5km transmission distance in a lorawan network

  11. Rated 5 out of 5

    torntrousers (verified owner)

    I’m just getting started, seems like a good board so far. Re the inaccessible schematic Michał Szymański mentioned – I emailed them and within just a few hours they replied giving me a userid/password to access the schematic. Also, i missed it initially as its underneath what looks like generic SX1278 doc but there is info on the board here: https://www.electrodragon.com/w/SX1278#Loraduino

  12. Rated 3 out of 5

    Chao

    Hi, Any question just put here on review or email us, or forum if you prefer. Thanks!

  13. Rated 5 out of 5

    sagram (verified owner)

    Excellent. only i have question how to put this into low power mode, I have 200uA in low power mode, after i remove voltage regulator, led,memory ,and battery regulator

  14. Rated 5 out of 5

    sagram (verified owner)

  15. Rated 3 out of 5

    Chao

    Have to google, http://www.home-automation-community.com/arduino-low-power-how-to-run-atmega328p-for-a-year-on-coin-cell-battery/
    This is a library for it, power down to low power mode, then wake up later by interrupt pin D2 D3.
    We will have another low cost board for this in this week or next, also the board now has back charging led from now.

  16. Rated 5 out of 5

    lzmdgl

    Hi, Im new to Arduino and lora. Is there any tutorial about how to upload code to loraduino?

  17. Rated 5 out of 5

    Chao

    Hi, Choose Arduino pro mini 3.3V/8M as board, and upload these two sketches to two board:
    rf95_reliable_datagram_client
    rf95_reliable_datagram_server
    https://github.com/Edragon/Arduino/tree/master/Sketchbook/02_LORA
    You can test the module.

  18. Rated 1 out of 5

    urs

    so, since the schematic is still “not accessible” for 8 month I’ve to ask here
    a) do you still hilde it 🙁
    b) is the layout compatible with a Hope RFM95W with 868MHz?
    thanks

  19. Rated 5 out of 5

    Chao

    Dear customer, It is not hide, just only provide for customer, I have just you wiki login info email, please check.

    Not sure if it is compatible with RFM95, we don’t have this module to test.

  20. Rated 4 out of 5

    Charles (verified owner)

    Hi Chao,
    These boards are working fine, I used them quickly with LMIC on TTN without any problem (wiring DIO1 to D4)
    May I suggest some improvement:
    – Burn Optiboot bootloader from https://github.com/MCUdude/MightyCore, this will save 1.5K of Flash that is very important since LoRa stack takes some place, this will keep uploading features with also Pro Mini 8MHz 3V3, no compatibility issue.
    – Change the 2 x 10K resistors of voltage divider for battery measure by 2 x 470K resistors, this will decrease consumption of this divider from 180uA to 3.8uA.
    – may be add another button to do some action
    regards

  21. Rated 3 out of 5

    Chao

    Hi Charles, Will upgrade these features, the first comment should be very helpful, will test this. Second one we already have a few customers asked this, will replace the them on next batch production. Will check the necessarily for the button, also if enough space to add it. Thank you!

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