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Brymen IR connection protocol - Anyone sniffed it yet?

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t1d:
@ Jack
Here is your design. The USB cable will have to have "feet" bent on the wires. If all of the toes on the feet point left, making all of the ankles be placed on the right side of the pads, then the cable will be centered on the board. I like it. What do you think?

Sairus:

--- Quote --- Please confirm that the value for the resistor for the phototransistor is 200K.
--- End quote ---
for each model of phototransistor you need find right value.


--- Quote ---Would these work?
Mouser.com
IR Emitter - Part Number: 782-VSMB2000X01
IR Phototransister - Part Number: 782-VEMT2000X01
--- End quote ---
I think is suitable


--- Quote ---Ultimately, I just want Sairus to make any final decisions and for him to be pleased with his creation.
--- End quote ---
come on it just PCB


--- Quote --- Sairus Alt JM.jpg
--- End quote ---
it my imagination or Phototransistor is closer to edge of board than IR Emitter?

t1d:

--- Quote from: Sairus on June 27, 2016, 07:31:06 pm ---for each model of phototransistor you need find right value.
--- End quote ---
Okay.


--- Quote from: Sairus on June 27, 2016, 07:31:06 pm ---Mouser.com
IR Emitter - Part Number: 782-VSMB2000X01
IR Phototransister - Part Number: 782-VEMT2000X01
I think is suitable
--- Quote ---Great! I think that I will order some to try on my version of the interface board that I am making for my PIC18F4550 controller...


--- Quote from: Sairus on June 27, 2016, 07:31:06 pm ---it my imagination or Phototransistor is closer to edge of board than IR Emitter?

--- End quote ---
It looks like the outside perimeter of the whole board may have slipped 1/2mm to the right. This would have carried over into Jack's version, too. I will have to adjust that; the outside perimeter and hole measurements are critical. As I still have not slept, this fine adjustment will have to wait until another day.

Also, one pad was closer to the hole than the others. I have already corrected this.

Please describe what you are seeing, so that I can be confident that we are not seeing two different problems.

Let me know which layout you prefer...
- My first version based on your photos. This is the one with the wiring pads on three sides of the PIC12F683, or
- Jack's version that has all three wiring pads lined up on the left side of the PIC12F683.
I think Jack's looks neater, but it is your choice. I will wait for you to tell me your preference, so I only have to correct the dimensions of that particular version.
--- End quote ---

--- End quote ---

t1d:
This is a rough draft of my PIC18F4550 version. I have added dimension lines to illustrate the perimeter shift. It is approximately 0.2mm to the left (not right, as I wrote.)

t1d:
The issue with the orientation of the boards was that the outside perimeter of the board had slipped in relation to the placement of the components. As Eagle handles holes as components, the holes were off, too. Once I determined the problem, it only took a couple of moves to correct the problem, so I just corrected all the files. See below. Catching this error was amazing. Please proof my new work.

My layout for the PIC18F4450 file will change, as I am ordering SMD IR components.

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