tjohn232
Posts: 3
Joined: Wed Apr 03, 2019 7:39 pm

Raspberry Pi to Raspberry Pi 433MHz long distance communication

Sun Apr 07, 2019 7:24 pm

I am looking to communicate to between two raspberry pi's and send some data to each other. I would need to communicate about 1km. I was wondering what radio transmitters and receivers anyone would recommend. And anywhere to point me to help set up the communication.

I was thinking about using https://www.robotshop.com/en/seeedstudi ... eiver.html
Last edited by tjohn232 on Sun Apr 07, 2019 7:32 pm, edited 1 time in total.

Heater
Posts: 12976
Joined: Tue Jul 17, 2012 3:02 pm

Re: Raspberry Pi to Raspberry Pi 433MHz long distance communication

Sun Apr 07, 2019 7:31 pm

None.

I have a feeling its illegal at the power required for that kind of range in most places.

douglas5962
Posts: 28
Joined: Thu Mar 29, 2018 2:22 pm

Re: Raspberry Pi to Raspberry Pi 433MHz long distance communication

Sun Apr 07, 2019 7:46 pm

I tried using those same models in college, they only work with an unobstructed view of each other. We got maybe 50 feet of range indoors through classroom walls.

I would recommend looking at the Digi XBee Pro 900HP... It's your typical XBee module except they're 900Mhz and intended for very long distance communications with the right antenna. Best of all, they're legal.

tjohn232
Posts: 3
Joined: Wed Apr 03, 2019 7:39 pm

Re: Raspberry Pi to Raspberry Pi 433MHz long distance communication

Tue Apr 09, 2019 2:43 pm

Thank you this is exactly what im looking for. We are going to be using it outside to pass data to a remote vehicle. I was wondering if you had any code or how to connect the two that you recommended. Thank you for your help!!!!

User avatar
bensimmo
Posts: 4128
Joined: Sun Dec 28, 2014 3:02 pm
Location: East Yorkshire

Re: Raspberry Pi to Raspberry Pi 433MHz long distance communication

Tue Apr 09, 2019 2:57 pm

look towards LoRa and possibly using LoRaWAN over it.
it well used by The Things Network and by other setups, also High Altitude Ballooning have been using just LoRa with a different network setups for some time.
You can buy ready made setups from Adafruit and other types or of course make your own from modules

available in 433/866/915 iirc
check which is best for you.


that or get one of the Heltec or TTGO ESP32 devices with it all onboard for less than the price of one of them hats.
depends what you are doing with them and if you need a Raspberry Pi

HAT
https://www.adafruit.com/product/4074

Return to “General discussion”