1. Thermoelectric USB charger
Today we are going to generate electricity from the difference in the heat it's nothing but Seebeck effect. We have to select the optimum material which is having high Seebeck coefficient. If we put in series also its mard even to generate 10mV. Peltier materials.
2. PI Phone
A person, if he has to communicate with someone far, will be using a telephone or a mobile phone, like if he wants to send a text message or make a call. This Pi Phone can send and can receive text messages, can make a phone call and receive a call. This Pi phone is a basic mobile phone with a touchscreen interface and has basic features like time, date and you can also keep an alarm.
3. Messaging with GSM and Raspberry Pi
SMS is a text messaging service component of most telephone, world wide web, and mobile devices. This text messaging can be can be one way or two way, that is if a user wants to send a text message and does not want to receive is one way and if he sends and receives the text messages that is a two way, using GSM module you can send and receive text messages.
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