The system also includes a small LCD. The Arduino outputs the current IP address to this display, making it easy to check up on the connection. The LCD is driven by 74HC595 shift register in order ...

Using hardware I2C on an ESP32? Do you need to connect multiple I2C devices with the same address? Normally ... [BastelBaus] provides example Arduino code you could easily integrate into your ...

Whether you need to scan family photos, piles of documents, or expense receipts, a scanner out there is built for the task. Here's how to shop for the right one, plus the top performers in our lab ...

Our current favorite OBD-II scanner is the Innova 6100P. Not only does this have the option to diagnosis problems with the handheld scanner or through the Innova app, it can actually predict ...

The I 2 C-bus is fabulously popular and successful as a low-cost way to attach chips together in small embedded systems. In some systems, though, these chips need to be opto-isolated to avoid damage ...

The GiiNii came with a sheath for picture 4x6 inches or smaller, but it can handle pictures up to 8.5x11 inches and also features a 2.4-inch LCD screen. The Kodak P460 and Pandigital scanner can ...

These additional timing modes and related issues could be handled more efficiently if we understand why a scan chain is needed and how it works. Chips without DFT implementation will mostly have only ...

Since 2004, I have worked on PCMag’s hardware team, covering at various times printers, scanners, projectors, storage, and monitors. I currently focus my testing efforts on 3D printers, pro and ...

but on the other hand it's portable and can scan slides and negatives as well as prints. This four-pound, battery-powered gadget has a 2.4-inch color LCD for viewing images or making setup changes ...