Timothy Lovett
UNITED STATES OF AMERICA • + Follow
Description
Level Up Board
A Xiao form factor board for optional level shifting with the use a jumper.
I have three uses for this board:
- If I want to use UART serial communication with a 5V board I need to level shift for the signals and power to avoid hurting the Xiao with its 3V3 pins
- There are some 5V only i2c devices such as the Seeed Vision AI sensor v2 (you can attach the Xiao directly to the board to get around this but my projects usually use multiple sensors so I prefer attaching it via a cable)
- There are some actuators that require 5V like the Seeed Water Atomization module
In the past I took care of this by assembling an inline DIY level shifter. It works well but I prefer simplicity with enclosures and it makes things a bit more difficult as each DIY board has slightly different dimensions.
I've added an article detailing the board and included some test related code as part of it.
Schematic and Layout
Schematic
Schematic_Xiao-Level-Up-Board_2024-07-15.pdf
Jul 15,2024
670 views
Level Up Board
Xiao footprint level shifting board with separate jumpers to select 5V or 3V3 for serial and i2c.
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Published: Jul 15,2024
Standard PCB
Download Gerber file 2
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