Two ready-to-upload Arduino sketches for finding the addresses of I2C devices on your bus. Stop guessing addresses and stop digging through datasheets — scan the bus directly and get the answer in ...

After all, that’s precisely what the shop will do—so why not arm yourself with the same info? These days, there’s a huge range of scanners available, from basic plug-ins to high-tech Bluetooth models ...

Time to convert your snapshots, slides, and negatives to digital format? Get the job done quickly with the right photo scanner. Here are the top performers in our testing, based on our deep-dive ...

An Arduino UNO scanning station that combines an HC-SR04 ultrasonic sensor, an SG90 servo, a 16×2 I²C LCD, a start/stop button, and two status LEDs. The servo sweeps between 30° and 150°. When an ...

Today's all-in-one printers suffice for the occasional scan, but photo buffs and family archivists alike turn to dedicated photo scanners to digitize their prints and film. High sensor resolutions and ...

Need to scan, copy, or fax, in addition to printing? An AIO printer is what you want. Find the right multifunction machine based on our in-depth reviews and expert advice. Most of my current work for ...