Many a times equipment at workstations remains switched on unnoticed. In this situation, these may get damaged due to overheating. Here is an add-on device for the workbench power supply that reminds you of the power-on status of the connected devices every hour or so by sounding a...

This project provides a variable output voltage ranging from 1.2 to 32 V @ 5 A. Project based on LM338K IC, LM338K is adjustable 3 terminal positive voltage regulator capable of supply in excess of 5A over a 1.2V to 32V output range, simple circuit consist few...

TechDepot Egypt @ instructables.com has published a tutorial on how to connect a HC-05 Bluetooth module to Arduino. Turorial shows how to connect the module with Arduino and example code is included. It is worth noting that the HC-05 power in (Vcc) uses 5V, while the transmit and...

Edward K. Miguel @ electronicdesign.com has published a circuit that has output high when the votlage in input is 220V and output low when the voltage is 110V. This is often useful on motor control and power supply systems. The circuit illustrated in the figure monitors the ac line...

Jesus Echavarria has posted a new project, a dual USB - Serial and I2C converter to communicate with serial and I2C devices. Hi all! After a couple of months with a lot of work, I come here again with the last board I develop before Christmas. It’s a dual USB serial and I2C...

DC Motor Direction Control project offers direction control using digital logic gates and a DPDT relay. Features Supply input 12 VDC @ 75 mA Power LED DC Motor Direction LED Yellow/Green Relay Output: up to 7 A Onboard tactile switch for direction control Relay based...

Dan Watson has designed a tiny breakout board for the Atmel ATtiny10. The board includes a bypass capacitor, a power LED and a user LED: This breakout board is for the ATtiny10 microcontroller. The PCB is 0.25×0.325″ and uses 0.050″ header pins. The board could actually be made...

The IDTF1370 is a digital pre-distortion demodulator (DPD) for power amplifiers linearization in BTS transmitter that utilize the IDT zero-distortion, and glitch-free technology that offers customers an unparalleled high-performance DPD demodulator. It utilizes the technique called...