Hi Everyone, I am using an electron with a SX1276 lora module to act as a receiver and I’m having a strange issue. When I connect up the LoRa module to a Arduino mini, I get good range (100m in built up city). When I connect up the electron to the same LoRa module the range drops to about 25m. W…

@PeaTearDial , I’m running out of ideas! The foil shield is the next thing to try.

it seems that when the particle is connected, I don’t get values below -100 RSSI. When the Arduino is connected I can get values all the way down to an RSSI of -127.

Those radios can consume a good amount of current, so I don’t think the 3.3v rail on the Electron can supply the full power transmission rate on the LORA radio. Try powering the radio from the Arduino power source while connecting the grounds between all units. This should tell you if it’s a power …

Hey! Yes I tried using the Arduino as VCC to no avail… had the same problem. Yes im using the exact same code (just changed the SS and reset pins.) https://go.particle.io/shared_apps/59e7cbeb07cb7f8ed1001451

No idea then. I did get the RFM95w radios working if you don’t get this figured out.

[image] RWB: RFM95w Thanks, I might have to if i cant get this figured out!

Here is an overview of how to get the RFM95w up and running should you go that direction. [image] Photon LoRaWAN node? General Here is my code for connecting an RFM95w Radio module to the Photon and then running the Radio Head Reliable Datagram Server and Client code on 2 …

Anyone else have any ideas? Would really appreciate it!!

@PeaTearDial , the Arduino Mini runs at 8MHz while the Electron runs at 120MHz. This affects SPI bus speed. Power requirements on 3V3 may also be an issue. Do you have a link to the code you are running?

Hey, here's the link! Particle Web IDE Write and flash code to your Particle devices Shouldn't the electron be able to supply 800mA? From datasheet: This pin can be used as a 3.3V power source with a max load of 800mA.

@PeaTearDial , code looks good and you are correct about the current capacity on 3V3. How are you powering the Electron?

LoRa with Electron v Arduino Mini

Troubleshooting

RWB October 18, 2017, 10:10pm 13

Here is an overview of how to get the RFM95w up and running should you go that direction.

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LoRa with Electron v Arduino Mini

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