Just a single transistor, an LDR, a few resistors, and a relay could all be used to create a somewhat useful automated street light, as seen in the diagram below. […]
Simplest Water Level Indicator Circuit using Transistor BC547
So you might be wondering what a water level indicator is. Well it is actually an electronic circuit that helps you see the different levels of water inside a tank. […]
Simple Delay ON Timer Circuit using Two BC547 Tansistors
If you are looking for a delay ON timer circuit that may be really simple yet efficient, then this tiny design will help you achieve the requirement. Using only BJTs […]
Simple Temperature Indicator using BC547 Transistor
The post explains a simple temperature indicator circuit using a single BC547 transistor and complementary 1N4148 diode. The temperature indication of a heat sink on a power transistor in high […]