Add info on wiring for FT86

This commit is contained in:
Timur Iskhodzhanov 2020-08-27 23:39:52 -07:00
parent 53a111f36f
commit 8570a9a35a
3 changed files with 24 additions and 0 deletions

View File

@ -68,3 +68,27 @@ Channel name | Equation
------------ | --------
Engine oil temperature | C - 40
Coolant temperature | D - 40
# Connections
Besides the CAN pins in the OBD-II port, there is a CAN bus male port hidden
behind the car multimedia head unit:
![Hidden CAN port](../images/ft86_hidden_can_connector.jpg)
It's very close to the glovebox, which makes it great for putting your CAN
reader in the glovebox. Such a placement makes sure it's out of the way and you
won't accidentally hit it with your leg while on the track, and also allows
quick access for troubleshooting and experimenting. There's also a second 12V
port inside the glovebox, which makes it easy to use a 12V-to-USB adapter
instead of adding a 12V-to-5V converter to your hardware design.
You can use the two middle pins of a
[Toyota radio harness](https://www.amazon.com/gp/product/B0002BEQJ8)
to connect to the CAN bus in a reliable way.
It's recommended to use a ~6090 cm (23') twisted pair cable between that port
and your CAN reader. I would strongly discourage you from using the screw
terminals on the MCP2515 board, as if the cable comes loose it can cause a short
circuit in the CAN bus (ask me how I know), which will throw a MIL at best, and
who knows what at worst if it happens on the track. Instead, I attached a female
JST SM connector to the cable.

Binary file not shown.

After

Width:  |  Height:  |  Size: 404 KiB

Binary file not shown.

After

Width:  |  Height:  |  Size: 292 KiB