In brief: A few months after acquiring Arduino, Qualcomm is introducing its first product designed to combine its processor technology with the "maker" ethos of the Italian company. Unsurprisingly, ...

Five months after acquiring Arduino, the open-source hardware and software company best known for its UNO and Nano microcontroller board for hobbyists, Qualcomm is looking to make another big splash ...

While searching for new products on AliExpress, I came across the SayoDevice OSU O3C, which looks very similar to other macro ...

There have been many questions about what direction Arduino would take after being bought by Qualcomm. Now it would seem that we’re getting a clearer picture. Perhaps unsurprisingly the answer appears ...

A standard telephone keypad, with four rows of three keys each. The top row consists of 1, 2, and 3, with keys continuing down in order until the last row, which is usually *, 0, and #. Such a keypad ...

One of the great things about sharing hacks is that sometimes one person’s work inspires someone else to take it even further. A case in point is [Ivor]’s colorimeter hacking (parts two and three), ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Jon Chase Jon Chase is an editor of smart-home coverage. For Wirecutter, he ...

REV D - June 2022 The I2C IO expander MCP23017 has changed according to the new data sheet. It is now described as a 14/16-bit IO expander. The pins GPA7 (7) and GPB7 (15) have lost their input mode, ...

This is a library for the MCP23008/17 I2C and MCP23S08/17 SPI Port Expanders. Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by ...

Keypad phones, believe it or not, are still in use, and there is a surprising amount of variety to choose from. Some of the phones include 4G connectivity, cameras, and are built to last. If you're ...