USB 10-digit Seven Segment Display Module
Led

USB 10-digit Seven Segment Display Module

by Dilshan R Jayakody:   This project is about an open-source, USB based, 10 digit seven segment display unit. This unit is specifically designed to work with POS systems and banking applications. Initially, this system is developed to work with PC based POS systems, and later it...

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Programmable USB Hub has I2C, GPIO and SPI
USB

Programmable USB Hub has I2C, GPIO and SPI

A USB hub that's also a dev board and an I2C, GPIO, and SPI bridge In addition to being a 4-port USB 2 High-Speed hub, this Programmable USB hub is also: A CircuitPython based development board. A bridge between your computer and I2C (via Sparkfun Qwiic connectors), GPIO, and...

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How to shrink your USB Type-C battery charger [PDF]
USB

How to shrink your USB Type-C battery charger [PDF]

Maxim’s app note on a highly compact Type-C charger solution. A highly integrated solution, as seen with the MAX77860 USB Type-C 3A switch-mode charger, dramatically reduces system complexity by integrating the charger, the power path, the Safeout LDO, ADC, and the USB-C CC and BC...

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Oscilloscope Differential Probe USB Power Supply
Power supply

Oscilloscope Differential Probe USB Power Supply

By Dr. Martin Oppermann (Germany) & www.elektormagazine.com In his article published in the July & August 2016 issue, Elektor author Alfred Rosenkränzer presented a wonderfully simple differential probe for oscilloscopes, based around the AD8479 precision differential...

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Zero Multi-Power Supply is Battery supported
Power supply

Zero Multi-Power Supply is Battery supported

This is a breadboard friendly power supply with multiple input options. It can be powered from a USB port or from attached AAA batteries. It also supports Lithium battery input, Single cell(3.7V) and Dual Cell (7.4V,Max:9V) all supported. Output is 2 way adjustable (2-Way Adjustable...

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High-contrast OLED displays with USB interface
LCD/OLED

High-contrast OLED displays with USB interface

Especially for small monitoring and control tasks, the display specialist ELECTRONIC ASSEMBLY has developed a graphic OLED display with touch-sensitive front made of real glass. The brand new EA PLUGS102-6 is not only a display, but also a full control unit featuring a wide range of...

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USB to -5V Negative Voltage DC-DC switching Converter
Power supply

USB to -5V Negative Voltage DC-DC switching Converter

Now days USB power source is very common and available in many devices and power banks. This DC-DC converter provide -5V negative voltage from +5V USB power source. This converter can be used in a wide range of industrial automation control equipment, sensors, isolated operational...

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USB Stack Light Controller based on PIC16F1459
Led

USB Stack Light Controller based on PIC16F1459

Glen Akins build a USB Stack Light Controller based on PIC16F1459 and documents the process on this personal blog. He writes: After using the PIC16F1459 to build numerous USB HID input devices including a giant keyboard, a tiny keyboard, and a big red button, it was time to see if the...

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