433 MHz receiver

[joshuajayg]

I have a Pi5 with McArthur HAT and will soon integrate a Pypilot controller to my system.  Is it possible to add a 433 MHz receiver directly to my Pi rather than using a Tinypilot or Pypilot HAT?

Joshua

[Jean-Marc Douroux]

This is possible using an 8MHz 3.3V Arduino to decode the output signals from the 433MHz receiver.
The Arduino is connected to the Raspberry Pi via SPI.

But I encourage you to read the thread:
https://forum.openmarine.net/showthread.php?tid=6677

[joshuajayg]

This is possible using an 8MHz 3.3V Arduino to decode the output signals from the 433MHz receiver.
The Arduino is connected to the Raspberry Pi via SPI.

But I encourage you to read the thread:
https://forum.openmarine.net/showthread.php?tid=6677

Thank you.  I had read that thread as well as a little from another person who was struggling with the 8 MHz side of the Arduino.  I can happily build an 8 MHz ATmega 328 powered bridge between the receiver and Pi.  Is there any guidance on what the Pi will be expecting over the serial connection or what the micro controller is looking for in return?

Joshua

[seandepagnier]

the source code that must run on the atmega is:
https://github.com/pypilot/pypilot/tree/...rduino/hat

the atmega is powered by the pi header and has all the pins connected to the pi, even the reset pin, such that executing "make prog" on the raspberry itself will program the atmega if the toolchain is installed.

From the schematic:
https://pypilot.org/schematics/pypilot_hat.pdf

you should be able to wire it correctly. It may be easier to just use a hat though, but the design allows your freedom.

[joshuajayg]

Thank you for the extra info. I hacked away on this all day but finally said enough. I've ordered a HAT from you. I've already purchased two other control boards, if that haven't shipped, will you please combine shipping?

Joshua

[seandepagnier]

shipping will be combined and difference refunded.