We are making an internet controlled smart lock for our E-club. The system has a fingerprint scanner for club secys and coordies,while other can send an online request to coordies via lock itself.
We have made a Breakout GPB board for all electrical connections to be rough n tough and for bringing modularity in the electrical connections and devices.
We have decided to use Power bank for control circuit Power supply. It will act as primary as well as secondary power source (in case of electricity supply failure).
We will be using aluminium sheet [3mm] for servo mount and 2mm sheet for circuit, overall system cover and 1mm thick sheet for protection case for Finger print sensor.
We learnt about some ways to make our circuit safe. Like using of Caps on power lines of servo, not using diode for Back EMF from servo as diodes are ...read more