Today I have started another project to add more wires to the crossfire

One feature that I always missed on the crossfire that my S4 has is the auto climate control. Starting today, I am working towards adding that into the crossfire as well. During my initial touch screen installation, I added 4 Bosch BME 280 sensors inside the car, one outside the car and an inferred temperature sensor that aims against the windshield. The BME sensors are capable of detecting temperature, humidity and barometric pressure. Inside the car, they will be monitoring the four "zones" and and allow me to set a numeric temperature (74 degrees for example) for the driver and passenger. I then plan to have my setup control the dampers, heat/cool setting on each side, AC and external air damper so the desired temperature can be maintained on each side. This will solve the problem with me playing with the blower speed 20 times during each trip

The blower speed and temperature settings are the easiest to control since they are controlled by 3 4.7K potetiometers. I have ordered 5k Digital potetiometers that can be controlled by I2C communications (which I am already using for everything else). The dampers are a little harder to control. Have starting to make adapters for two servo controllers to fit into the existing adjustments that are controlled by the current ****. All that is left to do is create the bracket that holds them into place.

Once everything is in working order, I plan to add a second touch screen for the climate control. I think I am going to add the heated seats and emergency blinkers into this screen as well so they are easier to access. I was thinking (and I am completely open to suggestions) of keeping the two temperature control ***** on the sides and make they control a temperature range (from say 60-85 degrees). That way, you can turn the original manual **** to set the set point. The touch screen looks big in the picture but it turns out it will fit perfectly in the dash. In this picture, it is out further than it should be because I dint take the original center ***** and buttons off yet.


This is the servo motor with the 3d printed ball adapter that is going to replace the original manual turn ****. There will be two of these next to each other to control the two dampers.





This is the partially assembled ball joint with the servo motor. If you look at the two white ***** on the original climate control, you can see the two controls they will be replacing.


PS. These servo motors are just being used for testing. I have stronger ones in the mail. These are strong enough to move the dampers but they struggle a bit. I would be worried about using these for a long period of time.