Products > Test Equipment

Brymen IR connection protocol - Anyone sniffed it yet?

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t1d:

--- Quote from: Sairus on June 24, 2016, 02:45:21 pm ---actually not,my software work with serial port so it not necessary use usb (uart usb adapter).You can use max232 and connect device straight to RS232,or use bluetooth module and make wireless connection. Potentially you can use esp8266 to use wifi connection.
--- End quote ---
Hmm... I thought that the PL2303 was for USB? What does it do?


--- Quote from: Sairus on June 24, 2016, 02:45:21 pm ---I use what i found in my mini stock /R1 R2 C2 smd 1206/ u1 pic12f683 soic8/C1 just tantalum capacitor/
--- End quote ---
Okay, that's enough information to rough in the PCB layout. I have already started working on it. Might this be the first real SMD project that I cook in my DIY Reflow Oven? I hope so!


--- Quote from: Sairus on June 24, 2016, 02:45:21 pm ---in my design not so many components so thruhole components fine too :-//
--- End quote ---
Well, yes TH components can be used, but only by bending feet on their pins and soldering to SMD pads... This is the way Jadew's board works. The pins may not pass through the board... They would scratch the DMM lens...
       

--- Quote from: Sairus on June 24, 2016, 02:45:21 pm ---GUI is not finished I work at graphs part,for now i prefer not share source code is need some tweaks.
--- End quote ---
Well, that is perfectly understandable...


--- Quote from: Sairus on June 24, 2016, 02:45:21 pm ---For PIC i use microC PRO for PIC i not sure that you can use my code
--- End quote ---
Even though someone else might be using a different compiler, it is pretty easy to see what is going on, from the code. I could learn a lot from it, as I am still learning to code in C.


--- Quote from: Sairus on June 24, 2016, 02:45:21 pm ---but i have PIC18F4550 so i can make hex file for you.
--- End quote ---
Wow! Thanks for this wonderful help! You made my day! I look forward to receiving it!

t1d:
The final version of the Jadew's Tiny2313 LOCKSTEP PCB arrived, today... Yeah, they're gorgeous :clap: It is too late, tonight, to bundle up the files, but I will be posting:
- The Eagle board file... I did not make a schematic, as it is in Jadew's design information.
- I will make a pdf file for those people that want to etch their own board.

NOTE: I have not verified the circuit completely through a working model... I am still trying to create a test circuit that will see the IR and notify me that it saw the light. But, I can't imagine there are any problems.

I am making these particular three boards available to anyone that wouldn't mind helping me defray the development costs of Jadew's project, say $5.50/shipped/USA and $7.50/shipped/International. There may be some other functional parts and pieces; I'll have to see what pops up... (There is likely to be a completely finished, potted unit...) I will not be making a profit, at that, but that is not the point... I live on a fixed income, and any costs I recover can be put into the next project :-+ Send me a private message, if you are interested...

t1d:
As promised:
- Eagle Board File
- PDFs, copper and silkscreen, front and mirrored
File is zipped, because website does not accept, natively, Eagle files...

Sairus's board is next! :popcorn:

t1d:
I have verified that my prototype of Jadew's LOCKSTEP does transmit and receive infrared light. I did not attach it to a controller, I just  banged together a breadboard test circuit and verified changes in voltage, on my DMM.

The next step, with this prototype board, is to try the potting method that I mentioned previously. Progress, to that end, includes finding a method to seal the IR components to the board, to prevent epoxy from getting into their holes, in the board.

I tried working hot glue around the "bulbs" with a toothpick. This made an awful mess. Next, I drew up some white, wood glue, into a printer ink refill syringe and used its needle to place the glue. This worked very well.

I used Elmer's "Max" wood glue. This has a little bit of wood dust already mixed in with the glue. The wood dust prevented the glue from running under the bulbs and filling the holes. Excellent.

Tomorrow, I hope to try potting it. I'm too tired to try tonight... Sairus's board will have to wait, too...

t1d:
Sairus, I would think that I would use the same value of resistors on my IR LED (330R) and Phototransistor (200K), for my PIC18F4550 controller, as what you are using for your PIC12F683 controller, correct? Please teach me the math that is used to determine these values. Thanks for your help...

EDIT: Wait a minute... Isn't this just using Ohm's Law to get the resistor value needed to adjust to the forward amperage required to run the IR device? Same as with a common LED?

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