ESP32 - Serial @ 115200 Baud Over Infrared - Fluke 289 IR Interface

[floobydust]

I have that circuit with the  BPW17N running hear talking to my Fluke 289 @ 115200  logging to flukeview for hours at a time without issue.

BPW17N graph looking  s l o w  unless collector current is high. But it does not say how much light is used for the test.

[sparctan]

Hey everyone!

Been a while, huh? I got busy, and have had time the last couple days to tie this project together.

I don't need anything but wanted to at least give you guys the gratification that I wouldn't have been able to do this without your guys' help. Plus to share some work I have put in in case it helps anyone else.

I'm putting together a schematic tomorrow, and want to tweak the code some more. But for now I have pictures and CAD files

In the zip file is my fusion archive for this project. Yeah...version 69...lol I have made a lot of tweaks... so many that I had to turn the timeline off so my PC stopped exploding when I opened the project. Anyways, the main chassis is pretty open to what you want to do. I have three 18650s, the esp, my boost converter, and the circuit in there. I use and specifically tuned the mount to work best with a seeedstudio esp32c6, which can also function as your battery charger. The boost converter runs the fluke, and at this time there is no battery monitoring in software or on the fluke.

The little weird bracket is to mount a button in there. I found a kit on amazon and one of them is a good size and has a long button stem on it that pokes through the chassis.

I personally have not had interference issues yet indoors even with some pretty bright lights, but that doesn't mean it won't happen, so on my build I put a piece of electrical tape over the back of the LEDs, then one on the bottom of that IR terminal cover. In hindsight, I should have just printed both of those pieces in black PLA. Oh, and note the wire routing. I had to shave off some plastic off of the stand because I used heat shrink and that was enough of a difference that the stand didn't want to lay flat. And lastly about the stand, I used some cheap amazon "rare earth" magnets and glued those in there.

I printed the main chassis in clear polycarbonate and I printed the stand in carbon fiber nylon (fiberon pa612cf15). I doubt you need to use these filaments but I know PLA is too heat sensitive to leave in a vehicle, and this pair looks pretty cool. Nice, 2000s clear aftermarket gameboy shell look going on.

It's pure code stuff now, like a timer where after 10s it puts the esp to sleep, then you can wake it with a button I added. It would also be pretty easy for one to wake the esp every 10s, send a QDDA serial message, see if there's a response and determine to go back to sleep or stay awake and function as normal. If you were so inclined.

Mostly what I want to get wrapped up for the code is the web page live graph. It works but I want to add some buttons for zooming and pause/run/save etc. But it's bed time.

Very tickled with how it came out. Thanks guys.