1.8v logic – WindowsTechs.com

Switch Your RP2040 Between 3.3 V and 1.8 V

Posted on September 30, 2024 by Arya Voronova

Ever want to build a RP2040 devboard that has everything you could ever want? Bad news, “everything” also means adding 1.8 V GPIO voltage support. The good news is that …read more Continue reading Switch Your RP2040 Between 3.3 V and 1.8 V→

When Your Level Shifter Is Too Smart To Function

Posted on April 14, 2024 by Arya Voronova

Logic analyzer capture, showing the rails constantly oscillating at a high rate

By now, 3.3V has become a comfortable and common logic level for basically anything you might be hacking. However, sometimes, you still need to interface your GPIOs with devices that …read more Continue reading When Your Level Shifter Is Too Smart To Function→

Motherboard Revived With Simplest 1.8V SPI Shifter Ever

Posted on March 8, 2024 by Arya Voronova

Probes connected from a Pi Pico board to the SPI flash chip, with other end of the probes connected tot the level shifter circuit resistors

If you have ever had to fix a modern desktop motherboard, you might have noticed that the BIOS (UEFI) SPI flash is 1.8V – which means you can no longer …read more Continue reading Motherboard Revived With Simplest 1.8V SPI Shifter Ever→