pull-up – WindowsTechs.com

Stuffing a 32-Pin Chip Into a 28-Pin Socket

Posted on August 13, 2023 by Dan Maloney

What’s the difference between a 64k ROM in a 28-pin DIP and a 128k ROM in a 32-pin DIP? Aside from the obvious answers of “64k” and “four pins,” it …read more Continue reading Stuffing a 32-Pin Chip Into a 28-Pin Socket→

Minimal USB Device Connects With Just a Couple of Resistors

Posted on May 9, 2023 by Dan Maloney

If you’re like most of us, your basic approach to building something boils down to: “What’s the minimum amount I need to do to get this to work?” It’s not …read more Continue reading Minimal USB Device Connects With Just a Couple of Resistors→

Get Quarantine Fit with this Smart Pull-up Bar

Posted on May 4, 2020 by Tom Nardi

Most gyms are closed right now due to social distancing rules, which is what we’re using as our latest excuse to justify our sloth-like lifestyle. But apparently some people miss working out enough that they’re putting together impromptu home gyms. [Michael Pick] has even outfitted his DIY pull-up station with …read more

Continue reading Get Quarantine Fit with this Smart Pull-up Bar→

Two Pins for the Price of One

Posted on August 8, 2016 by Bryan Cockfield

One of the most common problems in the world of microcontrollers is running out of resources. Sometimes it’s memory, where the code must be pared down to fit into the flash on the microcontroller. Other times, as [Fabien] found out when he ran out of pins, the limitations are entirely physical. Not one to give up, he managed to solve the problem by using one pin for two tasks. (Google Translate from French)

During a recent project, [Fabien] realized he had forgotten to add a piezo buzzer to his project. All of the other pins were in use, though, so