If you are looking for a compact GSM/GPRS module, you can get the SIM800L from most eBay traders. It is not the most judicious choice, but you can build your own basic GSM projects with a cheap modem ...

Because the SIM800L module is very flexible, a great GSM project design can be relatively simple. But there are a number of reasons for experimenting with more complex ideas, such as enhanced ...

connecting the raspberry pi to sim8ool gsm module to send, receive sms, delete sms etc. SIM900/SIM800 are 2G only modems, make sure your provider supports 2G as it is already being phased out in a lot ...

This project monitors voltage using a potentiometer connected to an Arduino. When the voltage reaches 4.8V or higher, the system automatically sends an SMS and makes a phone call using the SIM800L GSM ...

I've got a couple of SIM800L modules in remote devices that have been running for years. A few days ago both stopped registering with the (One NZ) network at the same time, and no longer connect at ...

Abstract: Drowsy driving is one of the major causes of road vehicle accidents, leading to serious injuries and fatalities. This paper introduces a novel Driver Drowsiness Detection System with ...