12vAuto3to8
author: cmaxwell
2 layer board of 1.96 x 2.02 inches (49.7 x 51.3 mm)
Uploaded:
March 01, 2016
Shared:
March 01, 2016
Total Price:
$19.75
Binary converter for 12v car lights. Used to convert digital (‘ABC’ wires) output from GM transmission to directly power 12v dash lights (P,R,N,D,2,Low,…) in older cars.
IC1: CD4011BE
IC2-4: CD4023BE
R1-8: 1k
R9-11: 4k7
Q1-8: 2N2907
Headers are 5mm screw terminals (though it may be just as easy to solder wires directly in). J16: A/B/C (binary inputs). J17: power and ground. J18-20 power outputs.
Can use jumper J1 to pull inputs high (as I needed) or low.
Can use jumper J3 (and switch 2N2907 transistors to 2N2222) to make this a low-side output switch.
Binary converter for 12v car lights. Used to convert digital (‘ABC’ wires) output from GM transmission to directly power 12v dash lights (P,R,N,D,2,Low,…) in older cars.
IC1: CD4011BE
IC2-4: CD4023BE
R1-8: 1k
R9-11: 4k7
Q1-8: 2N2907
Headers are 5mm screw terminals (though it may be just as easy to solder wires directly in). J16: A/B/C (binary inputs). J17: power and ground. J18-20 power outputs.
Can use jumper J1 to pull inputs high (as I needed) or low.
Can use jumper J3 (and switch 2N2907 transistors to 2N2222) to make this a low-side output switch.
