Special Cat Dish for my non greedy Cat

This is my 'SureFlap' Cat dish for my all day feeder cat (Pharaoh)... It only opens for him using his 'Microchip' as my greedy cat would and did eat all his dinner at any given opportunity... The sensors are round the arch and when he leans over the lid opens, when he walks away it closes... But he has (since training) put his paw on the lid, as he thinks this is what's opening it, so we tell people he has a magic paw... lol... And greedy wee other cat 'Roxy' can't eat his dinner... Well sometimes she has found a way... lol... 
You can see his 'Magic Paw' in action on this video I made 9 years ago... lol... https://youtu.be/AqeiLAcaPUA?si=siO2_03ZpFLTdqAO