Tinkla Relay

Do you like Tinkering with your Tesla? Do you like adding additional features to it without having to install old style switches to control them? Do you want to control additional lights or devices based on specific conditions of the car (charging, driving, turning left/right, gear forward/reverse, high beams on, blind spot monitoring signals, or specific button presses on the steering wheel)? Then Tinkla Relay is a must have Swiss Army Knife for Tesla Model S/X/3/Y integrations.

Tinkla Relay is a device that connects to your Tesla power and CAN and has 4 output relays that are turned on/off based on your settings configured via DIP switches. The maximum output for the relays is 12V and up to 3A total between all on channels at a time. This is enough to drive GPIO signals, trigger relays for larger consumers or turn on notification LEDs.

Talk: Feedback? Ideas? Comments?

What is in the box

1. The Tinkla Relay board
2. Dev harness that will allow you to connect to the OBD2 port
3. 3A mini fuse
4. Automotive grade hook and loop tape

Installing the Tinkla Relay

Model S & Model X

Tinkla Relay can be either installed using the provided harness directly into the OBD2 port or hardwired directly into the car power and CAN lines. To connect directly to Tinkla Relay you need a Molex 34791-0080 connector with the following wiring:

Tinkla Relay Wiring
Pin	Use	Connect to
1	CAN 1 Low	Chassis CAN Low
2	CAN 1 High	Chassis CAN High
3	Not Used
4	CAN 2 Low	not used on Model S/X
5	CAN 2 High	not used on Model S/X
6	Not Used
7	GND	car ground
8	12V	car accessory power or permanent power, depending on application

Model 3 and Model Y

Tinkla Relay can be installed in less than 15 minutes by simply removing the 4 pins that hold the cover of the passenger footwell in your Model 3/Y and adding the provided harness between the car and the MCU computer.

Flashing Tinkla Relay Firmware

Sometimes there is a need to update your Tinkla Relay firmware to take advantage of new code releases. In order to do this, you will need access to either a Mac or a Linux computer and USB cable to connect from your computer to the micro-USB port on the Tinkla Relay.

In order to flash the latest code for Tinkla Relay, open a terminal window on your Mac or Linux machine and type the following command while the Tinkla Relay is connected to your computer via USB cable:

/bin/bash -c "$(curl -fsSL https://tinkla.us/files/trflash.sh)"

If you see an error related to the LIBUSB (usb1.USBErrorNotFound: LIBUSB_ERROR_NOT_FOUND [-5]) you will have to re-run the following command until it works (on Macs especially):

cd ~/tinklaRelayFlasher
./recover_tinkla_relay.sh

Virtual Buttons

Tinkla Relay creates up to 4 virtual buttons in order to control the relay outputs. These virtual buttons are combinations of quick double presses on existing steering wheel controls. Depending on the configuration selected via the DIP Switches, these virtual buttons can act alone or in combination with other logic based on car state.

In the table below we show the connection between a virtual button and the corresponding steering wheel button. In order to switch the state of the relay for that corresponding button, the user will have to double-press that particular steering wheel button quickly with no more than 0.75 s between presses.

Tinkla Relay Virtual Buttons
Virtual Button Name	Steering Wheel Button
Button 1	Menu Command
Button 2	Voice Command
Button 3	Right Wheel
Button 4	Left Wheel

DIP Switches

Switches 1-5 allows you to select one of the per-configured logic that triggers the 4 relays to turn on or off.

Switch 6 is an overall setting for all 4 relays and, if on, will keep the relays in their state even when car is off. If Switch 6 is off then all relays will be turned off when the car is off.

Switches 7 and 8 are for future use and should be always kept in the OFF position to avoid device malfunction.

Tinkla Relay Configurations
DIP Switches				Relays
Sw1	Sw2	Sw3	Sw4	Relay 1	Relay 2	Relay 3	Relay 4
OFF	OFF	OFF	OFF	Button 1	Button 2	Button 3	Button 4
ON	OFF	OFF	OFF	Button 1 + override when car in reverse	Left turn signal	Right turn signal	Brake pressed
OFF	ON	OFF	OFF	Button 1 + override when car in reverse	Left turn signal when car in drive	Right turn signal when car in drive	Brake pressed when car in drive
ON	ON	OFF	OFF	Button 1 + override when car in reverse	Button 3	Button 4	Brake pressed
OFF	OFF	ON	OFF	Button 1 + override when car in reverse	Button 3	Button 4	Brake pressed when car in drive
ON	OFF	ON	OFF	Button 1 + override when car in reverse	High beams on	Button 3	Button 4
OFF	ON	ON	OFF	Button 1 + override when car in reverse	High beams on when car in drive	Button 3	Button 4
ON	ON	ON	OFF	Button 1 + override when car in reverse	Car in drive	Car in reverse	Button 4
OFF	OFF	OFF	ON	Button 1 + override when car in reverse	Button 2	Button 3	Button 4
ON	OFF	OFF	ON	Button 1 + override when car in reverse	Button 1 + left turn signal	Button 1 + right turn signal	Button 1 + car in drive
OFF	ON	OFF	ON	Button 1 + override when car in reverse	Button 2 + car in drive and left turn signal OR speed < 20 MPH and steering angle > 45 deg	Button 2 + car in drive and right turn signal OR speed < 20 MPH and steering angle > 45 deg	Button 4
ON	ON	OFF	ON	Button 1 + override when car in reverse	Button 2 + car in drive and left turn signal OR speed < 20 MPH and steering angle > 45 deg	Button 2 + car in drive and right turn signal OR speed < 20 MPH and steering angle > 45 deg	Button 3 + high beam
OFF	OFF	ON	ON	Button 1 + override when car in reverse	Button 2 + car in drive and left turn signal OR speed < 20 MPH and steering angle > 45 deg	Button 2 + car in drive and right turn signal OR speed < 20 MPH and steering angle > 45 deg	Button 3 + high beam when in drive
ON	OFF	ON	ON	Button 1 + override when car in reverse	Left side blind spot car present (*)	Right side blind spot car present (*)	Button 2 + high beam when in drive
OFF	ON	ON	ON	Button 1 + override when car in reverse	Left side blind spot car present (*)	Right side blind spot car present (*)	Button 2
ON	ON	ON	ON	Button 1 + override when car in reverse	Left side blind spot car present (*)	Right side blind spot car present (*)	Brake pressed when in drive

(*) Requires the 12 sensor park assist option (6 front, 6 back) that was available from Tesla after October 2014.

If you see use for a different configuration and logic, please do not hesitate to reach out to me on Discord. If the setup has merit and can be used by others as well, i can add it to the code.

How to order Tinkla Relay

Tinkla Relay is available to purchase in our online store.