00:00You ever wired up a 3.3V sensor to a 5V Arduino, watched the serial monitor spit out garbage,
00:06and spent an hour blaming your code? It's not your code. It's a voltage mismatch,
00:12and these logic-level converters fix it for less than a coffee.
00:15First up, the 4-channel bi-directional module with headers included, $4 flat.
00:21It shifts 3.3V and 5V in both directions, handles I2C, SPI, and UART no problem,
00:27and it's the one to grab if you want something ready to poke into a breadboard.
00:32Only catch is you need to solder the headers on yourself, but 5 minutes with an iron and you're done.
00:37Number 2 is the 10-pack, $4.15.
00:42Yeah, 10 modules for basically the price of one sandwich.
00:46If you've got a pile of sensors or you're building the same project 5 times, this is the no-brainer.
00:52Same bi-directional 5V to 3.3V shifting, same tiny footprint,
00:56and you'll never be digging through your parts been looking for one again.
01:00Third one is the cheapest way in, $1.10 for a single board.
01:04Same 4-channel bi-directional design, same I2C, UART, and SPI support.
01:10This is the one to grab if you just want to test the waters and see if level shifting
01:14actually solves your problem before you commit to a bundle.
01:18Grab the 5 or 10-pack later if it does.
01:214 is a single board at $1.23, and honestly it's the one I keep reaching for.
01:27For channels, bi-directional, 5V to 3.3V, and it's got that clean compact layout that
01:32fits tight next to an ESP32 or a Pi Pico.
01:36Under a buck and a quarter for something that saves you from a fried GPIO pin is a trade I'll
01:41make every time.
01:42Last is the flexible option, 257 and you pick your pack, 1, 5, or 10 pieces, and either 2-way
01:49or 4-channel.
01:50Same bi-directional 5V to 3.3V conversion, just more choice depending on how many lines
01:56you need to shift.
01:57Great if you only ever need 2 channels and you're tired of wasting a 4-channel board on
02:01one sensor.
02:03All 5 are linked in the description, and remember, sellers ship these in multi-packs, so check
02:08what you're actually getting before you check out.
02:11If this saved you a headache, hit like and subscribe, and I'll see you on the next one.
