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Brymen IR connection protocol - Anyone sniffed it yet?

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JackM:
I received a board revision from t1d (this one) and populated it today. Haven't connected it up to an MCU yet to test it though.

t1d:

--- Quote from: JackM on July 03, 2016, 09:21:24 pm ---I received a board revision from t1d (this one) and populated it today. Haven't connected it up to an MCU yet to test it though.

--- End quote ---
Hey, Jack...

Firstly, some information for others looking at this. The board that Jack is working with is identical to the final revision of the board, with the exception that I sanded the solder resist off of the curved ends that mate with the DMM bracket, for him. Sanding is no longer necessary, as the final version restricts the solder resist in these areas.

Jack, that's great looking wire work on the IR components. I see that you were able to fit SMDs on the resistor pads... Good trick. I had not planned that as a option. That will leave lots of space for attaching the wiring.

I did build this board out, completely, and tested for it voltage, on my DMM, with a mirrored pair of IRs, mounted on a breadboard. I did not test it with a controller, as I do not have, or use, the Tinys. But, my expectation is that it will work just fine. I look forward to you verifying that.

t1d:
I was looking at the OSH Park PCBs of the final JackM design and trying to remember where I left off with this project. I believe that I posted the final designs for JackM and Sairus. I was working on my own design that would use all SMD components and would work with my choice of controllers, the PIC18F4550. I have designed that board, but I have not shelled out the money to order the board, or parts. Money is still a little tight and I don't know when I will be ordering them. Also on my list is to get the Python script to run on my laptop. I never have been able to run it.

I have two copies of the final JackM Lockstep Board to share. If anyone is interested, send me a pm.

JackM, did you ever try your Lockstep Board with your controller? I would really appreciate verification that the IR components are positioned correctly.

Did anyone ever order a Sairus Lockstep Board?

Does anyone know a way to get a Lockstep Board to communicate with the DMM for testing, without using a controller. The receiver side of the board could be tested with a simple IR Remote test circuit. But, is there a way to flash the transmitter to have the DMM flash back an initial "Hello?" This might not be worth the bother, but it might be fun...

I would like to hear what others have done and maybe renew interest in the project.

JackM:
I did attach the board to my Brymen BM867s and hooked up an oscilloscope to measure the phototransistor, however I discovered that without a covering over the phototransistor too much light leaks in from the side to get any useful measurement from it unfortunately.

Sairus:

--- Quote ---would work with my choice of controllers, the PIC18F4550.
--- End quote ---


--- Quote ---Does anyone know a way to get a Lockstep Board to communicate with the DMM for testing, without using a controller. The receiver side of the board could be tested with a simple IR Remote test circuit. But, is there a way to flash the transmitter to have the DMM flash back an initial "Hello?" This might not be worth the bother, but it might be fun...
--- End quote ---

Dude I make for you firmware for PIC18F4550 Reply #120 it will communicate with DMM when you power it on (UART to USB not needed if you not plan send data to PC).

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