Schematic Diagram

An electronic switch that can be used to switch on both the air-conditioner as well as fan of your room, one by one. The circuit consists of power supply and control sections. The power supply section is built around transformer X1, bridge rectifier BR1 and filter capacitor C1. The 50Hz, 230V AC mains is stepped down by transformer X1 to deliver a secondary output of 9V, 300 mA. The transformer output is rectified by the bridge rectifier and filtered by capacitor C1.

When the mains is switched on for the first time, pin 3 of IC CD4017 (IC1) goes high and relay RL1 energies to switch on the fan. When mains is briefly switched off using S1 and then switched on, the power to IC1 is maintained by the charge on capacitor C1. At the same time, there is a trigger pulse on the clock input (pin 14) of IC1, which advances the decade counter and relay RL2 energies to switch-on the air-conditioner. Both the air-conditioner and the fan will be turned off if the switch is in the ‘off’ position.

Assemble the circuit on a general-purpose PCB and enclose in a suitable case. Fix the unit onto the switchboard. Use relays RL1 and RL2 with proper contact ratings. The current rating depends on the load that you are going to control. 

According to the latest rumors, Apple is integrating fingerprint reader, Touch ID, in its different versions of iPad this year. This is not a big rumor as it is quite logical that the company is planning to expand the devices with this feature, allowing users more security on their devices.

Now, a photo revealed as the iPad could see Air 2 (second generation iPad Air) and the new iPad Mini with Retina Display, with the Touch sensor ID.

Additionally able to know a little Air iPad 2 and the new iPad Mini, the picture also show an iPhone over them two, possibly iPhone 6, but few extra details that can be perceived in this cell phone, as in Apples new tablet.

According to rumors, the iPad Air 2 would have some design changes, but it is not known whether these changes would also be coming to the third generation of the iPad Mini.

However, no more details are known about, so take into consideration the picture but did not have your own doubts, as it is actually impossible to know if these would be the new Apple devices.