Kevin Darrah | Level Shifting Tutorial 5V-3.3V Quick and Dirty Methods @Kevindarrah | Uploaded February 2015 | Updated October 2024, 1 day ago.
Here's a quick and dirty video explaining a few of the different techniques I've used in the past for level shifting.

Better to use buffers if you've got em:
adafruit.com/product/757
adafruit.com/products/395
or my fav:
digikey.com/product-detail/en/CD74HC4050E/296-9213-5-ND/376792

That MOSFET circuit is used on Sparkfun's level translator board:
sparkfun.com/products/12009

Check out my Tindie store (trigBoard is available) tindie.com/stores/kdcircuits

Thanks to all the Patrons for dropping a few bucks in the tip jar to help make these videos happen!
patreon.com/kdarrah

Twitter: twitter.com/KDcircuits

For inquiries or design services:
kdcircuits.com