Hello,
I am using Unit PbHub and would like to ask about internal pull-up resistors.
The STM32F030 used in PbHub and EXT.IO2 supports internal pull-up/pull-down at the hardware level, but I could not find any way to enable pull-ups using the current M5Stack libraries. There seems to be no API to configure pull modes.
Is it currently possible to enable internal pull-up resistors on PbHub or EXT.IO2?
If not, is firmware modification the only option, or are there plans to support this in the future?
I would appreciate any official clarification or recommended workaround.
Thank you.
S
Posts made by sk-ys
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Internal pull-up support on Unit PbHub / Unit EXT.IO2?posted in Units
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RE: Unit QRCode suddenly stuck in Manual Scanning and doesn't read QR-Codes anymoreposted in Modules
Hi, I encountered a similar issue. When the QR code reader is in auto-scan mode, if the barcode is scanned more than once while the main program is in a delay state (e.g., 5000 ms), the barcode reader stops responding after the delay ends, and the data can no longer be read. I also tried reading the barcode from the image in the previous post, but nothing changed.
Additionally, I have confirmed that communication is restored and the device becomes usable again by unplugging and reconnecting the I2C cable. Is it possible to reset the barcode reader programmatically?