This is an image of the controls you see, when you connect to the IP address of the ESP32 in the Hymek on a smart phone. My brother has recently done a software update, meaning you can now have multiple devices connected simultaneously, allowing multiple people to control the Hymek at once. Or you could have one person controlling, and another person monitoring the power gauge!
I was reading the other day, there are only four real Hymeks left in the UK. Two of which are on the West Somerset Railway, which is less than a five minute walk from my house!