DIY Control Projects/Ideas (Simple designs, or more complex... Aurdino, Raspberry PI) Projects

[doughboy]

That's why I used the teensy, it is 3.3v, but inputs can tolerate 5v, so it will work as is in a 5v circuit.

 

[WallyB]

That's why I used the teensy, it is 3.3v, but inputs can tolerate 5v, so it will work as is in a 5v circuit.

I didn't know that (want to be careful since this is a TANK LIFE Sustating ATO).
But Good to know that 3.3 can handle (5v).
ARE YOU 100% sure!!

Got this off of Ardiuno web site.

• Warning: Unlike most Arduino & Genuino boards, the Zero runs at 3.3V. The maximum voltage that the I/O pins can tolerate is 3.3V. Applying voltages higher than 3.3V to any I/O pin could damage the board.
  

Resistors could solve that anyway on the INPUTS.

Another reason for wanting 5V is with Sensors on long wires, the extra distance=resistance so a voltage drop is worse on 3.3 vs 5V setup.

Also I still have an issue on 3.3V OUTPUTS since I put just-the-right resistors on my LEDs (on output pins) for the brightness I wanted.
So...In general it would be rework on some things. Nothing I'm interested after a few weeks or hard work. It's done. Things are tight in there, and I glue gunned all jumpers into place.

I will be building a clone, and I'll think about which board is best.
Something like a Zero on Teenzy on 3.3V doesn't give you 5Volt regulated off USB

 

[WallyB]

ok. Just found that Teensy is special. Can handle 5 Volts
https://www.pjrc.com/store/teensy32.html

And they Teensies all have much more Flash Memory than Uno. (ie 3.1 264k)

 

[Ranjib]

Lots of great ideas here, I hope the builds are progressing. Keep us posted,

 

[WallyB]

Lots of great ideas here, I hope the builds are progressing. Keep us posted,

Hi there.
I look a peek at your reef-pi site.
Nice work you have going there.
Took a peek at your foundation toolset GO and REACT. Both interesting.
You also have Two nice nano tanks coming along.

 

[Ranjib]

Hi there.
I look a peek at your reef-pi site.
Nice work you have going there.
Took a peek at your foundation toolset GO and REACT. Both interesting.
You also have Two nice nano tanks coming along.

thank you