Tell me please, what better place Arduino model for the following tasks:
- Interaction with the computer on COM port. The computer will send commands Arduino, and Arduino will respond to them. The command system will be implemented in the program on the computer and in the programme for the Arduino
- Arduino should be able to manage power supply GPRS modem Siemens MC35i. Arduino must know how to enable and disable the modem Power supply. Power supply of modem 12 volts.
Where to buy Arduino with delivery in Russia?
Perhaps in the future will need the following devices to connect to Arduino:
- Motion sensor that is triggered when moving Arduino
Are there such devices?