Deluxa82 First number (day) 9 means its turn on once per 9 days. It start count interval when you set up. For example if you want watering every day morning for 20seconds, set up exactly at morning day as 1 and time as 20. It should start next morning after 24h. Zero,0 means no watering. Second number means how long will be pump on in seconds. So shortest interval for watering is one day 24h , longest 9 days.

Deluxa82 I dont know how exactly are the libraries there in links inside product page you can try it. I always used Adafruit_GFX and Adafruit_TFTLCD. It works fine and there are lot of documentation and examples how to set up screen to display whatever you want.

Deluxa82 No, it is fixed. You cant set up anything only switch between two screens. Some countries have little different limit values for PM particles and AQI (en.wikipedia.org _wiki _Air_quality_index ) This little machine use USA standard scale. But I think there are no big differences between categories (green,yellow,orange,red) and AQI calculations is always same.

Deluxa82 youtube...............watch?v=IcIY2pWursc You need 3 libraries: Adafruit_TFTLCD.h Adafruit_GFX.h TouchScreen.h

Deluxa82 from datasheet......... 32kHz--- 32kHz Output. This open-drain pin requires an external pullup resistor. When enabled, the output operates on either power supply. It may be left open if not used. INT SQW--- Active-Low Interrupt or Square-Wave Output. This open-drain pin requires an external pullup resistor connected to a supply at 5.5V or less. This multifunction pin is determined by the state of the INTCN bit in the Control Register (0Eh). When INTCN is set to logic 0, this pin outputs a square wave and its frequency is determined by RS2 and RS1 bits. When INTCN is set to logic 1, then a match between the timekeeping registers and either of the alarm registers activates the INT SQW pin (if the alarm is enabled). Because the INTCN bit is set to logic 1 when power is first applied, the pin defaults to an interrupt output with alarms disabled. The pullup voltage can be up to 5.5V, regardless of the voltage on VCC. If not used, this pin can be left unconnected.

Deluxa82 yesits standard small lipo battery connector PH2.0