GreaseMonkey1980
New Member
Hi there, im a complete newb to picaxe, having done stuff the hard way with circuits, ive decided to try micro controllers instead of standard components, and the flow charts are so much simpler...
Anyway i have several questions...
I want to make a control system to power / run my dads Diesel Tractor.
I have made a flow chart composed of following outputs and inputs:
Key to Picaxe INputs / OUTputs
Input 1 - Push Button to start or stop (depending which state its currently in.)
Output 1 = to a relay which controls fuel solenoid
Output 2 = to a relay controlling starter motor solenoid
Output 3 = to a relay controlling heater / glowplugs
The PROBLEM is these all require 12volt automotive relays and are quite heavy duty in comparrison to electronics and picaxe hardware.
So my question is, how could i connect up 3 x 6volt small relays, running from the micro controller to power the bigger relays running 12 volt higher amperage.
Could i just connect picaxe outputs direct to the 6 volt relays or do they need extra power or components, transistors etc... Also what is the most practical way to connect the picaxe control board to a 12 to 13.8 volt vehicle power supply as it needs only 5.5 volt im led to believe. Hope you can help a total NEWB.
Grease-MONKEY-1980
Anyway i have several questions...
I want to make a control system to power / run my dads Diesel Tractor.
I have made a flow chart composed of following outputs and inputs:
Key to Picaxe INputs / OUTputs
Input 1 - Push Button to start or stop (depending which state its currently in.)
Output 1 = to a relay which controls fuel solenoid
Output 2 = to a relay controlling starter motor solenoid
Output 3 = to a relay controlling heater / glowplugs
The PROBLEM is these all require 12volt automotive relays and are quite heavy duty in comparrison to electronics and picaxe hardware.
So my question is, how could i connect up 3 x 6volt small relays, running from the micro controller to power the bigger relays running 12 volt higher amperage.
Could i just connect picaxe outputs direct to the 6 volt relays or do they need extra power or components, transistors etc... Also what is the most practical way to connect the picaxe control board to a 12 to 13.8 volt vehicle power supply as it needs only 5.5 volt im led to believe. Hope you can help a total NEWB.
Grease-MONKEY-1980