Often, it becomes necessary to interface an existing or new 5V AVR / PIC / MCU project to new devices that use 3.3V logic, like memory cards, sim cards, etc. Described here is a circuit that converts ...
When designing a test station incorporating a microcontroller, you often face voltages in the test that exceed the maximum input level permitted for the microcontroller. For example, if a ...
When you go on your favorite cheap online shopping platform and order a batch of 74LS logic ICs, what do you get? Most likely relabeled 74HC ICs, if the results of an AliExpress order by [More Fun ...
Last time, we’ve used a logic analyzer to investigate the ID_SD and ID_SC pins on a Raspberry Pi, which turned out to be regular I2C, and then we hacked hotplug into the Raspberry Pi camera code with ...
Learn about digital states, voltage logic levels, and logic level families for digital signals. This tutorial is part of the Instrument Fundamentals series.
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