Q: Which microcontroller is used in this project?
A: A 40 pin microcontroller from 8051 family is used in this project.
Q: Can I replace lamp with any other load?
A: Yes, any electrical load with wattage up to 200W can be used.
Q: What is RTC?
A: RTC stands for Real Time Clock. It provides time reference along with memory back up.
Q: Where is it applicable?
A: It is applicable in distribution system, Home appliances like geyser etc.
Q: How can one set the time?
A: A numeric keypad is provided to set the time
Q: What is the formula for calculating smoothing capacitor value?
A: There is some approximated formula .Peak to peak ripple voltage = Load current in amps / (2*line frequency in hertz *capacitance in farads). But as rule of thumb for 1 A current 1000uF is best. Thus it is load dependent.
Q: What to do when the lamp fails and what is the maximum lamp rating that can be used?
A: If the lamp fails one can use any lamp or bulb which is used in homes up to 100W. We suggest you to go for low watt bulbs.