Looking for a hands-free way to page through sheet music on an iPad, [The_Larch] came up with this simple Bluetooth input device based on the ESP32. The microcontroller just needed to have two ...

At its core, the ESP32 chip is not much more than an integrated circuit, a huge mass of transistors sealed inside an epoxy resin package with some leads. Of course, most of us won’t buy discrete ESP32 ...

C tool with 125 MS/s sampling—perfect for fieldwork, classrooms, or your desktop Compact, cost-effective i.MX 91 development board optimized for embedded Linux development Building an indoor ...

The ESP32 has emerged as a favorite tinkering device in the maker and hobbyist world thanks to its low cost, built-in Wi-Fi and Bluetooth, and strong community support. One particular strength it has ...

Update 3/9/25: After receiving concerns about the use of the term 'backdoor' to refer to these undocumented commands, we have updated our title and story. Our original story can be found here. The ...

A hot potato: The ESP32 chip, found in over a billion devices worldwide, contains undocumented vendor-specific commands that could potentially be misused to access device memory and manipulate ...