I think one of the problems of DIY smart home implementation is ... the DIY part.
I think the DIY designs suffer from sedimentation, or buying something that works for very specific function, then forgetting about it and moving onto the next very specific function. Although individually these functions may work, together they multiply problems.
I think much of this can be reduced if DIY-er sticks to a fewer solution. Just on for communications, I have seen Bluetooth, ZigBee, LoRA, Wifi, Ethernet, and modbus in a single home...
I think the DIY designs suffer from sedimentation, or buying something that works for very specific function, then forgetting about it and moving onto the next very specific function. Although individually these functions may work, together they multiply problems.
I think much of this can be reduced if DIY-er sticks to a fewer solution. Just on for communications, I have seen Bluetooth, ZigBee, LoRA, Wifi, Ethernet, and modbus in a single home...