lbenson
Senior Member
I found a circa 2004 design for RV LED lighting using a PIC16F627P here: http://members.shaw.ca/swstuff/einstein.html
The PICAXE-18 used a PIC16F627A (I'm not sure of the difference between the "P" and the "A"). The circuit showed VDD off of the nominal 12V supply with a 680 ohm resistor and a 4.7 zener diode, thus:
I know that newer LEDs would benefit from an updated driver circuit, but my question is--would this dirt cheap powering arrangement be appropriate for the picaxe (assuming, as per recent threads, that no ADC is desired), e.g., for a PICAXE-08M?
I don't know anything about RV power supplies (other that, in North America they tend to be 12 volts)--but perhaps this kind of lighting would be subject to the same kind of sparklies which we are warned about with respect to other in-vehicle circuits.
The PICAXE-18 used a PIC16F627A (I'm not sure of the difference between the "P" and the "A"). The circuit showed VDD off of the nominal 12V supply with a 680 ohm resistor and a 4.7 zener diode, thus:
I know that newer LEDs would benefit from an updated driver circuit, but my question is--would this dirt cheap powering arrangement be appropriate for the picaxe (assuming, as per recent threads, that no ADC is desired), e.g., for a PICAXE-08M?
I don't know anything about RV power supplies (other that, in North America they tend to be 12 volts)--but perhaps this kind of lighting would be subject to the same kind of sparklies which we are warned about with respect to other in-vehicle circuits.
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