Odroid XU4 Shifter Shield
Including €0.01 for ecotax
Odroid XU4: too original?
The Odroid XU4 board has two GPIO headers, the first with 30 pins and the second with 12. Both headers have pins with a 2 mm spacing.
Which, as you can see, creates a compatibility problem with the Raspberry Pi standard, which has widely imposed the 2.54 mm-pitch 40-pin GPIO header. Another problem, the XU4 GPIO headers deliver a voltage measured at 1.8V, which is insufficient for lots of devices operating generally with either 3.3 or 5V.
Odroid XU4 Shield: new standards
Fear not, the designers of the XU4 board have thought of everything – namely a shield created especially to ensure their latest baby is fully compatible with Odroid C1 and Raspberry Pi 2 B model (or almost).
The Odroid XU4 shield converts the 42 1.8V GPIO pins into a single GPIO 2.54 mm-pitch 40-pin header, and has a switch so you can choose between a 3.3V and 5V mode. The added bonus is the shield’s “sea of holes”, in other words a small prototyping area so you can benefit immediately from your XU4’s new-found compatibility.
Technical specifications of the shield for XU4
- 3 TSX0108E bi-directional integrated circuits for voltage level conversion
- GPIO 2.54 mm-pitch 40-pin header (2x20) compatible with Odroid C1
- 36 pins out of 40 compatible with Raspberry Pi 2/A+B+
- I2C 6-pin header
- 3.3V/5V switch for GPIO connections
- Integrated prototyping area
- Very clear silkscreen GPIO pinout
- Mounting hardware to attach the shield to the Odroid XU4 board
Resources for the Odroid Shifter Shield
We’ve spared a thought for all those wishing to take their analysis of the Odroid Shifter Shield a little further with these two technical schematics:
Technical schematic of the Odroid XU4 Shifter Shield