Components 1. GPS receiver (Garmin GPS 35), which provides the vehicle's location information 2. GSM module (Siemens TC35), used to send SMS (text messages) to a pre-set mobile phone 3. Ibutton (DS199
USART is used for serial screen editing. I have never learned it before and I am driven crazy by the deadline of the teacher today. I would like to ask the experts for help.