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Reply To: GPIO info

OpenSprinkler › Forums › Hardware Questions › OpenSprinkler › GPIO info › Reply To: GPIO info

March 26, 2023 at 8:37 pm #75102

Ray
Keymaster

OpenSprinkler 3.x uses ESP8266. ESP8266 doesn’t have quite enough GPIO pins that’s why OpenSprinkler uses PCA9535 IO expander chip.

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