Vida CEM swapping

[rednasdees]

Good evening.
I have been for a cheap but effective way to unlock my cem pin through the obd2 port
I found the teensy 4.0 method but I'm having a hard time finding parts.
I found a pcb file which has all the wiring for the pcb as well.
However, I cannot find the bosch cf160 transceivers needed for the job.
Also, in the schematic on github, I can see that some resistors that need installing, but I'm not sure where to install them on the pcb.
The pcb link:
https://www.pcbway.com/project/sharepro ... 037d5.html

The github link: https://github.com/vtl/volvo-cem-cracker

This one should have the can side of the components if i am not mistaken
https://www.waveshare.com/sn65hvd230-can-board.htm

Goodluck

So, with these, I don’t need the resistors

If you look at the board in this link : https://www.waveshare.com/sn65hvd230-can-board.htm You can see there is a small 10 k resistor on the board next to the chip on the side of the board, at the top were the screws are there is a jumper which connect the 120 k resistor which is used if you have your unit on a bench and not in your car.

I myself used 2 of these with a teensy 4.1 on a breadboard you could also use a teensy 4.0 does not matter

[Constantinos]

This one should have the can side of the components if i am not mistaken
https://www.waveshare.com/sn65hvd230-can-board.htm

Goodluck

So, with these, I don’t need the resistors

If you look at the board in this link : https://www.waveshare.com/sn65hvd230-can-board.htm You can see there is a small 10 k resistor on the board next to the chip on the side of the board, at the top were the screws are there is a jumper which connect the 120 k resistor which is used if you have your unit on a bench and not in your car.

I myself used 2 of these with a teensy 4.1 on a breadboard you could also use a teensy 4.0 does not matter

Can I not use the con which I have linked?

[dikidera]

This one should have the can side of the components if i am not mistaken
https://www.waveshare.com/sn65hvd230-can-board.htm

Goodluck

So, with these, I don’t need the resistors

If you look at the board in this link : https://www.waveshare.com/sn65hvd230-can-board.htm You can see there is a small 10 k resistor on the board next to the chip on the side of the board, at the top were the screws are there is a jumper which connect the 120 k resistor which is used if you have your unit on a bench and not in your car.

I myself used 2 of these with a teensy 4.1 on a breadboard you could also use a teensy 4.0 does not matter

Darn, so I am guessing if I have the 120 ohm resistor set and connect to the car, I will not get a good connection?

[rednasdees]

So, with these, I don’t need the resistors

If you look at the board in this link : https://www.waveshare.com/sn65hvd230-can-board.htm You can see there is a small 10 k resistor on the board next to the chip on the side of the board, at the top were the screws are there is a jumper which connect the 120 k resistor which is used if you have your unit on a bench and not in your car.

I myself used 2 of these with a teensy 4.1 on a breadboard you could also use a teensy 4.0 does not matter

Darn, so I am guessing if I have the 120 ohm resistor set and connect to the car, I will not get a good connection?

I you stil have the cem in the car with evrything else connected you wont need those indeed, i think it might even mess up your cracking attempt :S

[rednasdees]

So, with these, I don’t need the resistors

If you look at the board in this link : https://www.waveshare.com/sn65hvd230-can-board.htm You can see there is a small 10 k resistor on the board next to the chip on the side of the board, at the top were the screws are there is a jumper which connect the 120 k resistor which is used if you have your unit on a bench and not in your car.

I myself used 2 of these with a teensy 4.1 on a breadboard you could also use a teensy 4.0 does not matter

Can I not use the con which I have linked?

you can still order these boards, and desolder the chip and resistors and solder them on the pcb you found. if thats waht you were thinking about ?

[dikidera]

If you look at the board in this link : https://www.waveshare.com/sn65hvd230-can-board.htm You can see there is a small 10 k resistor on the board next to the chip on the side of the board, at the top were the screws are there is a jumper which connect the 120 k resistor which is used if you have your unit on a bench and not in your car.

I myself used 2 of these with a teensy 4.1 on a breadboard you could also use a teensy 4.0 does not matter

Can I not use the con which I have linked?

you can still order these boards, and desolder the chip and resistors and solder them on the pcb you found. if thats waht you were thinking about ?

No I am using a chinese MCP2515 board and just soldered the jumpers together to avoid using cables to short the jumpers as I was experimenting on the bench. I completely forgot about the possibility of this not working on the car.

[rednasdees]

you can still order these boards, and desolder the chip and resistors and solder them on the pcb you found. if thats waht you were thinking about ?

No I am using a chinese MCP2515 board and just soldered the jumpers together to avoid using cables to short the jumpers as I was experimenting on the bench. I completely forgot about the possibility of this not working on the car.

my message above was meant for someone else but uhm i gues you can try desoldering your jumper if you are using it in your car

[Constantinos]

If you look at the board in this link : https://www.waveshare.com/sn65hvd230-can-board.htm You can see there is a small 10 k resistor on the board next to the chip on the side of the board, at the top were the screws are there is a jumper which connect the 120 k resistor which is used if you have your unit on a bench and not in your car.

I myself used 2 of these with a teensy 4.1 on a breadboard you could also use a teensy 4.0 does not matter

Can I not use the con which I have linked?

you can still order these boards, and desolder the chip and resistors and solder them on the pcb you found. if thats waht you were thinking about ?

That makes sense for the chip, but where would the resistor go on the pcb?

[rednasdees]

Can I not use the con which I have linked?

you can still order these boards, and desolder the chip and resistors and solder them on the pcb you found. if thats waht you were thinking about ?

That makes sense for the chip, but where would the resistor go on the pcb?

Actually funny does not look like it has one so i have no clue

[Constantinos]

Should I design my own con or should I just use a breadboard?