PCF8574 or MCP23017 - Printable Version +- Smart Home Automation Forum (https://www.kincony.com/forum) +-- Forum: Technical Support (https://www.kincony.com/forum/forumdisplay.php?fid=20) +--- Forum: KC868-A16 (https://www.kincony.com/forum/forumdisplay.php?fid=25) +--- Thread: PCF8574 or MCP23017 (/showthread.php?tid=2825)

PCF8574 or MCP23017 - kovalank - 04-25-2023 Hi... I am curious about why all of your I/O expander ports are using PCF8574. Why did you choose PCF8574 instead of MCP23XXX series/MCP23017 ? (some more advantages over the pcf8574) RE: PCF8574 or MCP23017 - admin - 04-25-2023 these two chip all can use. just in China, PCF is easy to buy.