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The crisis of cutting-edge technology, and the manual orthodox attendance system outplayed by smart and secure biometric attendance using Arduino. Remote accessing application of GSM is incorporated ...

In many underdeveloped and developing countries, the custom and laws of crossing the roads are not very strict, in which case an automated road crossing system is much needed. Besides, the amount of ...

After downloading the library, load the MQ7_Example.ino example sketch onto your device, with analog out connected to A2 GND connected to GND Vin connected to 5V Upload the sketch, and then monitor ...