How to Improve Buck Converter Light Load Efficiency with an LDO
Power supply

How to Improve Buck Converter Light Load Efficiency with an LDO

By Michael Hartshorne @ digikey.com: Designing a DC/DC converter that only consumes micro amps of current at no load can be compared to fueling a muscle car with lighter fluid – you may get it to work, but it won’t be easy. High efficiency at full load currents is commonplace in...

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Parallel Port Breakout board with Buffer for CNC & Routers
Control

Parallel Port Breakout board with Buffer for CNC & Routers

Parallel port I/O break out board designed for Hobby CNC, Routers and Motion controller ,  This Board is an easy solution to driver stepper Motor driver, AC Servo (with Step-DIR Driver) and DC servo (with Step-DIR Driver), The Board is compatible with various CNC software specially...

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Arduino Lightning Detector
Arduino

Arduino Lightning Detector

This is an Arduino tutorial on how to detect lightning from far away. In this tutorial, we will build a lightning detector using an Arduino Uno, a few resistors and some jumper wires. Most lightning detectors often cost too much for the normal hobbyist, however this does not mean one...

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AutoResetRRR – Automatically reset routers/cameras/servers
Control

AutoResetRRR – Automatically reset routers/cameras/servers

"bogdan" published a new project, a device able to automatically reset your router, camera or server. AutoResetRRR is a kind electronic frustration reducing device: it cuts the power periodically to devices that can go nuts (routers, net cams, servers), but it does give a heads up....

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USB to RS485 converter
USB

USB to RS485 converter

Marko Pavlin has published a USB to RS485 converter. He writes: Testing of sensors with RS485 using PC without proper interface is not possible. Since RS232 interfaces are very rare, the interface should be hooked to USB. The interface between USB and RS485 can be soldered with one...

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Optically Isolated LPT Breakout Board for CNC & Routers
Control

Optically Isolated LPT Breakout Board for CNC & Routers

Optically isolated parallel port  break out board designed for Hobby CNC, Routers and Motion controller, This Board is an easy solution to drive stepper Motor driver through PC parallel port, The Board is compatible with various CNC software specially made for LPT port data output....

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5.808
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1.8″ DIY Photo Frame using and Arduino Nano and a ST7735 Color TFT display
ArduinoLCD/OLED/ePaper

1.8″ DIY Photo Frame using and Arduino Nano and a ST7735 Color TFT display

In this video educ8s.tv is  going to show us how to use the SD card slot of the popular 1.8" Color TFT display which uses the ST7735 driver. Then we will save some bitmap images in the SD card and we will display them on the display. In other words, we will build a simple Photo Frame...

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150V DC/DC inverting controller: single inductor, ground-referenced control
IC

150V DC/DC inverting controller: single inductor, ground-referenced control

LTC3896 is a high voltage inverting switching regulator controller that drives an all N-channel synchronous power MOSFET stage. Most low to medium power inverting DC/DC converters use a coupled inductor or transformer: this device uses only a single inductor. The chip converts a 4V...

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