Alternative: 4-Kanal Pegelwandler
4-Kanal Level Converter mit einem Spannungsbereich von 1,8 - 10V.
Mit diesem Converter lassen sich auch I2C Signale auf einen anderen Pegel umsetzen.
Because the Arduino (and Basic Stamp) are 5V devices, and most modern
sensors, displays, flash cards and modes are 3.3V-only, many makers find
that they need to perform level shifting/conversion to protect the 3.3V device from
We do have some other handy level shifters in the shop, from the DIP 74LVC245
to the fancy bi-directional TXB0108
However, neither of these are happy to work with I2C, which uses a
funky pull-up system to transfer data back and forth. This level shifter
board combines the ease-of-use of the bi-directional TXB0108 with an
I2C-compatible FET design following NXP's app note.
This breakout has 4 BSS138 FETs with 10K pullups. It works down to 1.8V
on the low side, and up to 10V on the high side. The 10K's do make the
interface a little more sluggish than using a TXB0108 or 74LVC245 so we
suggest checking those out if you need high-speed transfer.
While we designed it for use with I2C, this works great for SPI, TTL
Serial, and any other digital interface both uni-directional and
bidirectional. Comes with a fully assembled, and tested PCB with 4 full
bidirectional converter lines as well as 2 pieces of 6-pin header you
can solder on to plug into a breadboard or perfboard.