Hello again
I kinda know what i wanna do with a arduino, a gsm controlled car central locking, with some extras.
I am working on a Car pc, so integrating the Arduino with the pc would be a nice function.
Some off the things i was thinking about integrating:
Lock/Unlock car.
Sound the horn, fx if i see that someone is messing with my car, either constant on, or some SOS sound.
Turn on/off my Webasto Parking heater, so i can sms to the arduino that i want to have the parking heater running next morning at 7, and it should turn it on for fx 20 mins.
Interface some parking sensors, so i can send the distance from car to object over serial to the pc, and display it on the screen.
Interface fx a couple of temperature sensors, fx one in the car and one outside, so i can see if it would need to remotely turn on my parking heater or just the cabin fan in the summer.
Maybe joining some of the functions, so i fx just send a sms with the text "status", and the arduino will then send back these stats:
Car status:
Inside temp: 20C
Outside temp: 24C
Parking heater: Not running
Battery voltage: 12.6V
Current use: 0,05A
Car is locked.
But i cant seem to find a way to read incomming sms on a phone over serial, using AT commands, anyone have some ideas?
The reason i want to use a phone, is that i can let the arduino use the phones battery, when the car is not running, so i dont drain the car battery, and that it is a lot cheaper to find a older phone, than a dedicated GSM unit for development.
I can also use the phone for some logging, by fx let the arduino write a sms, but dont send it, and then by sending a sms with fx Read log, the arduino will set the phone to send the log as sms.
Best Regards
Morten