A Full Frontal Node


This is a collection of devices previously described that are directly connected to the J-Front (Left) Node at the front-right of the vehicle; one of the busiest nodes in the vehicle as it connects to a very wide range of devices.

This is a big muddy map sketching out how things are directly connected. Click on the image to open it in a new window.
J-Front
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Cooling Code


Here’s an early snapshot of the code to drive the radiator cooling fans with PWM output, using the harness fan-switch and starter motor switches to determine the mode of operation. The code (already) compiles to 610 bytes; out of the 1024 available in the ATtiny13A microcontroller.

Field programming operation, battery voltage sensing and the ability to use an NTC resistor for coolant temperature sensing are not yet supported.

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