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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Programmable USB Hub will soon launch on Crowdsupply
USB

Programmable USB Hub will soon launch on Crowdsupply

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,...

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3.460
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MCC 118 – 100kS/s Stackable DAQ HAT For Raspberry Pi
Raspberry Pi

MCC 118 – 100kS/s Stackable DAQ HAT For Raspberry Pi

Measurement Computing Corporation (MCC) has released a $99 measurement DAQ (Data acquisition system) HAT for the Raspberry Pi. It is highly optimized for single point and waveform voltage. MCC claims their board allows greater accuracy with high resolution. It has much faster sample...

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An introduction to GPIO Settings
Mcu

An introduction to GPIO Settings

Working with microcontrollers means managing GPIO pins at some point. Many configurations have been developed for modern microcontrollers which can lead to some “fancy” terms that may confuse programmers. Its important to understand all of this to avoid confusion and errors while...

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BML GPIO-14 USB Board for PCs
USB

BML GPIO-14 USB Board for PCs

BML project for using a $2 FTDI FT260Q for adding 14 bits of GPIO to any PC via USB with no device drivers required. Ever miss the simple days of using a PC’s LPT1 parallel port to bit-bang GPIO over 8 output pins and 4 input pins of the DB-25 connector? I sure do. My first design...

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Three Ways to Make Arduino Works As A USB/TTL Converter
Arduino

Three Ways to Make Arduino Works As A USB/TTL Converter

Even if you have years working with electronics, you will still find some simple hacks that you never thought about before. Personally and to save money, when I was a student with a very limited budget I knew that my Arduino UNO can work as a USB/TTL(serial) converter. I used to remove...

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Robust C Library and Utility for GPIO sysfs Interface in Linux
Mcu

Robust C Library and Utility for GPIO sysfs Interface in Linux

by Derek Hildreth - Technologic Systems This comprehensive and easy to read example C code is designed to work alone or included as a library for dealing with general purpose I/O via the sysfs interface in Linux.  It can easily be applied to any computer which utilizes the GPIO...

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Low-Cost FPGA With Reconfigurable Electronics Feature
HardwareProductsTechnology

Low-Cost FPGA With Reconfigurable Electronics Feature

Iolinker is a cheap 64 FPGA board with a MachXO FPGA that functions as a dynamically configurable IO matrix. Its main functionality, besides IO extension, is to dynamically set up a matrix of GPIO connections, that allow direct pass-through of high-frequency signals. Circuits can thereby...

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