Reference
Last revision 2026/01/08
This article offers an in-depth look at Arduino library functions such as pinMode, digitalRead, and digitalWrite, along with a detailed pin mapping for GPIO integration. Supplementary resources like datasheets and schematic layouts are provided to enhance understanding.
Library Functions
- pinMode() same as standard Arduino
- digitalRead() same as Arduino
- digitalWrite() same as Arduino
Pin map
P0.0~P0.7 map to GPIO 0 ~ 7 or ED0 - ED7
P1.0~P1.7 map to GPIO 8 ~ 15 or ED8 - ED15
Other Supplementary Information
history wiki page V1.0
datasheet.pdf PCA9555 datasheet
Schematic V2.0
Layout V2.0
svg files
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