The easiest solution would be to buy a smartplug and integrate it into one of the smarthome ecosystems like Google Home, Amazon Alexa, Apple HomeKit. For a mor

The easiest solution would be to buy a smartplug and integrate it into one of the smarthome ecosystems like Google Home, Amazon Alexa, Apple HomeKit. For a more DIY solution you can install Node-RED onto a Raspberry Pi for a GUI flow editor: https://hackaday.com/2020/01/15/automate-your-life-with-node-red-plus-a-dash-of-mqtt/ https://hackaday.com/2020/01/15/automate-your-life-with-node... Alternatively, if you'd like to do everything on the Raspberry Pi, use its GPIOs to control a relay module with optocoupler isolation (~$4) which can turn the pump on or off: https://www.aliexpress.com/item/2251832713449142.html https://www.aliexpress.com/item/2251832713449142.html If you're more hardcore, you could flash a smartplug like Sonoff S31 with Tasmota and add rules that trigger based on various events (eg: timer). https://tasmota.github.io/docs/Rules/#rule-variables https://tasmota.github.io/docs/Rules/#rule-variables https://tinkerman.cat/post/sonoff-s31-now-serious https://tinkerman.cat/post/sonoff-s31-now-serious