a
Figure 1 a

Parallel port and microcontroller unit (MCU) interface. Figure originally published in (Appelhoff 2022) under a CC BY 4.0 license.

Schematic of the parallel port.

 
See whole plate
 
  Part of: Keller O, Appelhoff S, Paffhausen BH, Wenzel T (2023) Development and Sharing of Open Science Hardware: Lessons Learned from Wikimedia Fellowships. Research Ideas and Outcomes 9: e95174. https://doi.org/10.3897/rio.9.e95174