Kenwood protocol

 

 

Part 4

PCB build

the tiny PCB is finished
caps a bit bigger than hoped for
Current draw of 20mA makes for
about 0.14W to dissipate
12V or 14V -Vout 5V * 20mA

i.e.no heatsink needed and PCB fits nicely in its enclosure

 

Power for PCB directly from car DIN connector

 

Code

C code v5.0 Final version...? polished hysteresis

 

Final product and concept proofs

Testing controls before installation

Head unit installed and working