AllYarnsAreBeautiful / ayab-hardware

Contains the schematics and layouts for the AYAB Arduino shield
Creative Commons Attribution Share Alike 4.0 International
33 stars 15 forks source link

Wrong part number for I2C port expander in AYAB interface BOM #42

Open dl1com opened 17 hours ago

dl1com commented 17 hours ago

In https://github.com/AllYarnsAreBeautiful/ayab-hardware/blob/main/ayab-interface/assembly/ayab_rs_oshw.csv#L17 the Manufacturer Part Number and order numbers are stating a wrong version of the chip (PCF8574A).

The correct one is PCF8574 (without trailing A). The parts have different I2C adresses and are therefore not interchangeable, so it is crucial to fix this in order to avoid DoA interfaces.