Archives: Projects

If you need to drive multiple video gadgets or monitors from a single video signal source then this board is the right choice for you. This is a 3-channel video splitter with an amplifier and the circuit is built using discrete components. Q2 and Q1 act as a signal amplifier, Q3 act...

This breadboard-friendly board breaks out all 4 tactile switch signals and includes pullup resistors configured so that the outputs read low or high when configured common VCC or GND. Schematic Gerber...

The project presented here is a two-channel infrared remote ON/OFF switch that can be used to control home appliances, Lights, Fans, Water Pumps, Aquarium pumps, Ovens, Heaters, etc. This open-source project contains 2 x SSR (Solid State Relay), Arduino Nano, and TSOP1838 infrared...

This is a high voltage regulator project that provides 5V regulated output with a load capacity of 50mA from input supply 10V to 60V. The project is based on the ZXTR1005K4 regulator which is fully integrated into a TO252 package. We have tested this project with 60V DC input, but the...

In past, we have published many brushed dc motor driver boards for various projects and usually, they have some sort of limitations, as some of them are large in size, require large size heatsink, doesn’t have current feedback, they don't have overload protection, some require...

The project described here is a high voltage step-down regulator based on A4447 general-purpose buck converter chip from Allegro Semiconductor. The output voltage of the board is configured at 3.3V, but it is adjustable from 0.8 to 24V, based on the resistor divider R2 and R5....

This is a precision, low power oscillator that occupies very little space.  The oscillator frequency is adjustable using an onboard multi-turn trimmer potentiometer. The output of the circuit is very accurate and has a 1.5% frequency error. The project operates with a single 5V power...

This is a step-down DC-DC converter mainly designed for application such as high-cell-count battery packs, power tools, garden tools and electric scooters, drones. Some of the features of the project is precision enable, input voltage UVLO, internal soft start etc. The project...