Why Bluetooth? Why Mobile Phone?
The Bluetooth communication system is a highly complex and sophisticated inter-computer technology that constitutes a massive overkill for the simple function of controlling a few relays. So why use it?
The answer in a single word is: Convenience.
Now with a single device, that is already always to hand, with battery always charged, you can postition your caravan, control your 4x4 winch, adjust your tyre pressures, switch your borehole pump, be notified of security breaches at your home, and locate your teenaged daughter's vehicle when she ventures forth at night.
That is convenience.
A Remote Control unit and Android mobile phone app to drive your ewiks Caravan Mover from your mobile phone. Motor currents can be measured, and reported on the phone as well as being limited by logic within the Remote Control unit.
No more blown fuses!
A Bluetooth 4x4 winch control for 4x4 vehicle and Android mobile phone app. The remote winch control allows free movement up 50 metres from the vehicle using just your cellphone, for enhanced safety and versatility.
A remote control device and Android mobile phone app to inflate or deflate your tyres. In Manual Mode you control the compressor and deflator valve while sitting comfortably in your vehicle, or you can dial in a target pressure and tyre size in Auto Mode, and let the controller do it for you.
Current hose pressure is continually displayed on the mobile's screen as well as the seconds remaining in the present Auto operation
A remote control for appliances such as pumps and lights. Communication is via Bluetooth with maximised range of up to 60 metres through antenna optimisation. A second, momentary contact relay is provided to engage, for instance, the generator's starter motor.
There is a temperature control extension which allows 230V power switching according to the input from a thermal probe. The output relay closes when the monitored temperature moves beyond preset limits. You set the limits and decide whether temperature should be raised, as with a heater driving towards the upper limit, or lowered, as with a fridge, working towards the lower threshold.
This device measures two pressures and four temperatures between the air filter and the induction manifold, and transmits the results to an Android mobile phone app via Bluetooth, while the vehicle is operated in a realistic highway environment. The controller continuously recalculates and reports on the intercoolers efficiency There is a facility to energise a relay that powers a water-jet pump to experimentally enhance cooling.