Simple Bedwetting/Wet Diaper Alert Circuit is one special electronic helper! It know when someone pee in bed or diaper and then it make sound like doorbell ding ding! So parents or helper can know fast and come for help. Good for kids who pee in bed at night or people who need more help for […]
1.5V Audio Amplifier Circuit
A 1.5V Audio Amplifier Circuit is small circuit it makes sound signal more strong using only 1.5V battery. This type of circuit is low power amplifier which is good for things that uses battery or when big power is not there or not needed. Circuit Working: Parts List: Type Value Quantity Resistors (All resistors are […]
Solar LED Lantern Circuit
Solar LED Lantern Circuit is small setup using sun power to give light with LED. It have solar panel through which the battery charges again to LED lights and some small parts like diode, resistor and transistor. Circuit Working: Parts List: Type Value Quantity Resistors 15Ω 1/2W 1 1.5Ω 1/2W 1 1k 1/4W 2 Semiconductors […]
Simple 220V LED Night Lamp Circuit
This Simple 220V LED Night Lamp Circuit design make night light work straight from home power plug which is usually 220V AC. It does this by using small transformer or special capacitor to drop voltage low so LED lamp can work safe. Circuit Working: Parts List: Type Value Quantity Resistors 10Ω 1W 1 560k 1/2W […]
How to Interface Microcontroller and Arduino with Relay
In this article How to Interface Microcontroller and Arduino with Relay first we need to think about small computer like Arduino which cannot control big current. Relay is like one switch and it can handle big current for motor, light and heater. To connect safe we have used one transistor like translator and one optocoupler […]
220V Temperature Controller Circuit
This post talks about 220V Temperature Controller Circuit in easy way. Circuit can turn ON or OFF heater, cooler or other things to keep same temperature. It uses big power like 220V. Has sensor like thermometer to check heat or cold. Has small brain chip or timer to decide when to turn ON or OFF […]