Our home security is a very important matter, as it helps to protect us from become the next target of the burglars, especially when we’re away from home!
Most people choose to purchase home security system or locks from the malls or stores, as they think it’s better to buy the locks than making it by [...]
If you are having more than two computers, but you only has one Ethernet jack in your house, which would be a huge problem for you! Go figure, it’s totally a hassle to unplug the Ethernet cable over and over again, every time when you or your loved ones want to use the computer, isn’t [...]
People who live in the seasonal countries might have two important household appliances in the house. One is the air-conditioners to keep them cool in the sizzling hot summer, while the space heaters are another device to maintain the air and surroundings at a comfortable temperature, especially in the winter!
Normally, space heater warms a small [...]
If you a gardening lover, you must be annoy that it is hard to tell, whether the ground of the flowerpot is running out of water or not.
However, with the help of this CMOS quad Schmitt, you can easily detect the flowerpot condition just in a second.
First, you need to have these components ready:
470k 0.33W [...]
This intercom circuit is based on LM386 low voltage audio amplifier. It uses 8 ohm speaker works as microphone and speaker at the same time. 10k potentiometer is used to control the volume. As a double pole double throw switch is used in this circuit it reverses the speaker’s position and makes one as loudspeaker [...]
