els
Not sure why we have RS232 and RS485 none of the controllers support either one.
Not sure who did the hydrawise but it is obviously biased. I nearly bought hydrawise based on the features but found out local API is not supported. Also, local interface is not available - it relies on cloud service and when it is down (Wi-Fi, internet, or cloud server) you can't do much via controller even though it has touchscreen.