The project I am looking at is the remote control of a 1/12th scale diesel outline locomotive, 5” gauge. It is powered by a petrol engine thru a centrifugal clutch to a reversing gearbox, then by drive chains to the 6 axles. Also, it has a disc brake between the clutch and gearbox.
Having looked around the internet my thoughts have been towards a master/slave system based around the “arduino Mega” micro computer.
What the functions of the control system are (possibly):-
- relay control- say 8 relays
- secure wireless control
- Throttle servo control
- Disc Brake servo control
- Stepper Motor control, this motor is for the control of the F/N/R of the gearbox. Motor to be fitted with lead screw (approximately 100mm long). As gearbox takes between 3 to 4 kg to move lever. Springs to be fitted due to the action of gear Change dogs.
- Limit switches for positive location of gearbox F/N/R, especially after a system shutdown with power off.
- Logic loop between Master/Slave control modules for a loss of signal, say 500msec, imitates a Stop, Brake application and engine shutdown.
So what I need help with is, am I using the right/wrong micro computer?
If the system tests successfully, then extend it to a second locomotive with similar functions.