Same person that I got the inspiration from. His posts although few and far between is pretty much well thought out. I wouldn't have figured it out how to smartify my life without him. The Sonoff 4CH is a bit over maybe, cause I don't want to reach behind my TV to keep turning on and off the switch, so the 4CH will power 4 plugs, behind the TV, so it will activate the TV, TV box, Amplifier and anything TV related (DVD, Bluray Player, Soundbar), hopefully with voice command and IFTTT, can use voice to search for Movies. So with a few TV sets, need a few 4CH. As for the 4CHPro, it can be powered by AC or DC, I ordered these power windows from a company and it requires AC power to turn the motor, so hopefully, with the 4CH Pro, I can smartify my powered windows as they are located too high up for me to close or open them.

Don't know how to explain to you but find the one with the diamond shaped chip. You want, you can PM me with your WhatsApp number. I have flashed a fair amount of it.

I used to think that soldering is the solution, but at the end of the day, I flashed all my Sonoffs by just having very nimble fingers to hold it in place during the transfer. It's not that hard. Not sure about the latest batch but all my Sonoffs have holes where I can insert the pins of the FTDI module.