Ron, start with Pi or ESP 32 GPIO pins best to drive optocoupled relay boards. they come in clusters of 4 or 8 ...This is what I am using. to drive ...

@ronalex4203 A bloke like you call "boss" in an Australian workshop. Same way as my flying instructor checked me out on the DH - 82 Tiger Moth. ...

@ronalex4203 Glad you are in the mood to trade yarns.... Ron. When I was in Trade school on the 80s ..year One we got Ohm and etc. Year Two w...

Hi Ron, I have been down the path of driving relays and etc, just recently and am pretty much half way up the learning curve of MQTT and WiFi based ...

@frogandtoad Well at the moment my questions are incoherent. It was like when I was first in a position where I found in necessary to communicate in...

Thank you kindly frog and toad. I will certainly take you and the group up on your offer. During the last few month I have gone from being completel...

Further to my last ... I have got my project to do everything I wanted it to do by stealing code for the ESP and butchering Node Red for the hub.. I...

P.S. As to those "numbers" Jim Pytel is a good place to start. Very sound theoretician as well as a sound practical spanner spinning man. HTH ...

Sorry Mate, what I posted was rude and intemperate. The point I was trying to make is that Electronics and Process Control is like the thread that...

@frogandtoad There is a set of numbers that come from the sky .. The key work is "Insolation" That link you gave contributes nothing. No numbers.. j...

@frogandtoad Thank you so much for your kind words. Yes you are so fundamentally RIGHT in pointing out that when we build something and "it works" ...

@frogandtoad Yes but what you have to do is work the numbers... There is your Latitude and the prevailing insolation at your spot on the planet. (I c...

I doubt that it will work. When you look at the numbers involved you will likely find that the size of the panel required to give you any useful energ...

Hi Roberto, what a wonderful career you have had! When I think of Naples I think of the enthralling drama "Gommorah" . I dont normally watch long ru...