[Bill Porter] has a tip for designing circuits that have multiple connections to a single microcontroller UART. This stemmed from a review of a friend’s circuit design that used the UART in the ...

Have you ever used the term UART only to be corrected by another engineer that it isn’t a UART but USART? In certain circumstances the interchangeability of these ...

Hackaday regular [befinitiv] wrote into the tip line to let us know about a hack you might enjoy, wireless UART output from a bare STM32 microcontroller. Desiring the full printf debugging experience, ...

Edge-triggered interrupts are useful in microcontroller (MCU) applications for processing asynchronous events like switch closures, level transitions, and pulses. However, low-cost MCUs offer limited ...

The Z86C91 is a CMOS Z8 ROM-less microcontroller featuring an asynchronous receiver/transmitter UART available in 40-pin DIP, 44-pin PLCC, and QFP packages. It operates from 4.5 to 5.5-V with 24 input ...