The 4 LED temperature indicator circuit discussed here is very useful for getting a visual information regarding the state of temperature which is to be monitored.
This logic detector probe circuit can be very useful device for those who may want to measure the logic levels of digital circuits frequently. Being an IC based circuit, it's implemented in CMOS technology, its aplication is more dedicated to test circuits using the same technology.
Jan 30, 2015
The post explains how to run or blink three LEDs in sequence using Arduino. The post was written and submitted by: Jack Franko
Jan 29, 2015
The article is a continuation of the earlier post where we tried to find a solution for creating unique infrared IDs for trains in a model locomotive system. Here we try to understand the application in detail and learn how it may be possible to successfully implement the idea using tuned IR detector circuits. The idea was requested by Mr. Henrik
This fan speed controller works by sensing the temperature of the engine and is accordingly used for the triggering. As the temperature increases so does the speed of the fan motor and vice versa.
Jan 26, 2015
You may have studied countless transformerless power supplies in this blog and in the web, however calculating the crucial mains capacitor current in such circuits has always remained an issue for the many constructors.
Jan 24, 2015
In the previous article we learned about a simple barcode sensor circuit, here we'll study how the sensed pulses can be transformed for getting unique sets of high low outputs from the IC 4033 in response to different barcodes patterns. This unique results can be then used for activating a barcode security lock circuit or an alarm.
Jan 21, 2015
The article discusses a model locomotive controller circuit using uniquely set IR beams for different locomotives allowing unique identification signals and controls for the engines. The idea was requested by Mr. Henrik.
Jan 8, 2015
In this post we learn how to make a simple RGB (Red, Green, Blue) LED controller circuit which may be designated to flash a group of RGB LEDs with a particular sequencing pattern. The idea was requested by Mr. Navdeep.
Jan 3, 2015
The post explains a high energy surge suppressor circuit for suppressing high current mains surges in industrial electrical.