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Data Transfer Between Raspberry Pis

CaptainSugars

I have two pi's that I'm using for a project (one Pi 4 and one zero). I need to wirelessly send data from the zero to the 4. Currently I'm thinking of just using BLE, but does anyone else have any suggestions? The less power used the better as the zero is on battery. I'm transferring small files between the 2 (<500kb).

 

Thanks!

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Yeah you could do that.

 

if they're close together, you could use an infrared emitter and a receiver on both devices, kinda like what they use on digital multimeters to isolate them when data logging. It's possible to do something like 50-100 KB/s and the receiver would only have to send some acknowledge or retransmit pulses if a packet is corrupted.

 

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2 minutes ago, mariushm said:

Yeah you could do that.

 

if they're close together, you could use an infrared emitter and a receiver on both devices, kinda like what they use on digital multimeters to isolate them when data logging. It's possible to do something like 50-100 KB/s and the receiver would only have to send some acknowledge or retransmit pulses if a packet is corrupted.

 

Good idea, but unfortunately they wont have line of site (needs to go through one indoor wall).

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Over the network using WiFi? Connect both to an access point and use something like sftp.

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I'd use FTP if I were you. Should be pretty simple to setup, and I believe you could even exchange data over the internet (not just your local network) if you set it up right.

ASU

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Yeah I'm gonna use either an adhoc network with the pis, or try and use the BLE. The one will be on battery so I'll try and get BLE working first since it'll be more power efficient.

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