RP2040 based Seeed Xiao compatible controller with a VIK connector

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In light of putting together the VIK specification, this is a RP2040 controller that has a built in VIK connector, using the same footprint as the Seeed Xiao controllers. This means that any pcb that utilizes the Seed Xiao footprint will work with this controller. The additional value is that this controller provides you the VIK connector, allowing you to add a VIK module to your keyboard.

See firmware section below for details, depending on the version you have.


  • RP2040
  • 2/4/8 MB flash, depending on flash availability
  • Seeed Xiao footprint
  • VIK connector

Firmware support:

Important note: There are three versions of this controller available: v0.1, v0.2, and v0.3. The final version is v0.3, which matches the Xiao controllers perfectly in terms of peripheral configuration (I2C, SPI, etc). However, v0.1 and v0.2 do not. They will function identically to v0.3 for any keyboard PCB that does not utilize those peripherals, but with different firmware configuration (provided above). For this reason, v0.1 and v0.2 are provided at a discount, while v0.3 is full price.


Weight 0.1 kg
Dimensions 2 × 3 × 0.3 cm

v0.3, v0.2, v0.1