Hi,
I’m working on a project where I need to handle multiple Wiegand 26-bit RFID readers and expand my GPIOs. I am thinking of using the MCP23017 GPIO expander with I²C, but I’m concerned about the I²C speed when reading fast Wiegand signals.
Will the I²C speed cause issues with reading Wiegand data accurately, especially with multiple readers? Or is there a way to improve performance with the MCP23017 for this kind of application?
I’m working on a project where I need to handle multiple Wiegand 26-bit RFID readers and expand my GPIOs. I am thinking of using the MCP23017 GPIO expander with I²C, but I’m concerned about the I²C speed when reading fast Wiegand signals.
Will the I²C speed cause issues with reading Wiegand data accurately, especially with multiple readers? Or is there a way to improve performance with the MCP23017 for this kind of application?
Statistics: Posted by onlinegill — Mon Feb 17, 2025 6:00 am — Replies 1 — Views 20