Hey guys, just getting started with my first Moteinos, one connected to a RPi running the PiGateway sketch, the other one is connected to a LIS3DH accelerometer and a microSD card module. I am trying to log the accelerometer values at 20Hz and save all those values to the microSD card. After every 5 minutes I need to transmit the accelerometer values file (~2MB) over the radio to the RPi Gateway.
This here says
https://lowpowerlab.com/2013/06/20/rfm69-library/ that I can send only 61 bytes every packet and "Longer packets can easily be achieved by chaining".
I have seen a lot of examples for sending 1 packet at a time and they work great, I could write a loop that reads the file 61 bytes at a time, writes them into a buffer which is sent to the Gateway and waits for an ACK and repeats until EOF is reached. This seems like a waste, the RF69 modules can achieve higher bitrates then this, so my question is basically is how can I transmit this file faster, writing to many packets concurrently and sending them at the same time? Any suggestions on how to go about this would be great, as any examples where people might have already implemented this.
Thanks!