A DS1307 is a pretty simple , inexpensive and easy to use real time clock IC. This IC can count date and time accurately. Once the time and date is set, it will continue its counting if the power(backup battery) is there ! The backup battery ( coin cell battery) is there to keep the DS1307 counting operation if the main power supply is cut off.
Recently, many have been asking me what software I am using for the schematic drawing for my DIY PCB.
So, I decided to make this post and share with everyone about the PCB drawing software that I have been using all this while.
Relay is an electrical operated switch that people
normally used when they want to control a higher voltage circuit from a
lower voltage circuit.
Current flowing through the coil of therelay creates a magnetic field which attracts a lever and changes the switch contacts.
