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Update #10

A project log for Infrared Communication SAO

A SAO board that can be used to communicate to other SAO boards through infrared.

alec-probstAlec Probst 10/22/2024 at 05:420 Comments

Hi all!

Alec here! We've received most of the parts for the boards at this point. We did have some hiccups with the ATTINY85 shipment from AliExpress but we're sorting that out. I did get two boards working with a test program and can confirm that they communicate between each other! So happy they work! 

We did have one heart attack moment when testing. We had a test program that sends a value and checked if it had received that same value. Our test boards were saying they had a communication even when the other one wasn't on! Turns out that the IR light can be reflected off of a surface and the IR Receiver can see that. I realized this was happening when i put my hand close to the LED and that was received by the board. By changing the value to be unique to each board, the board wouldn't show they received anything until both were on! Heart attacked passed!

I've also been working on a tutorial video to show how to put the SAO together! I've never made a video like this before so its been a learning process! Here's a teaser image, we'll post the video as we get closer to Hackaday Supercon!

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