How to connect a TMP36 temp sensor?


#21

Do you know anyone in Orange County/Tustin? MicroCenter has 10+ in stock, in store only, $5.


#22

I’m about 400 miles away…hmm…might be worth it. They allow only 1 at a time?


#23

I saw that, that is why I asked if you knew anyone.

Yup, although I have walked out of my local MicroCenter (only 65 miles away) with two.

Good luck,
-Ian


#24

We’re (the Cayenne team) really glad you like the software!

Cheers,

-Benny


#25

My current issue:
the internal GPIO INPUT pull-up.
I gotta know-
it’s kind of important to me.
I can design either way, but I gotta know now.
can Cayenne tell the remote Pi unit to use GPIO pull-up?

import RPi.GPIO as GPIO
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
GPIO.setup(18, GPIO.IN, pull_up_down=GPIO.PUD_UP)  # Cat5 Orange
GPIO.setup(27, GPIO.IN, pull_up_down=GPIO.PUD_UP)  # Cat5 Blue
GPIO.setup(22, GPIO.IN, pull_up_down=GPIO.PUD_UP)  # Cat5 Green
GPIO.setup(23, GPIO.IN, pull_up_down=GPIO.PUD_UP)  # Cat5 Brown

#26

@eptak any input here?


#27

Yes-
Cayenne requires external pull-up resistors using Pi- so I added them.

Also, looking at a total PCB redesign
using the Arduino ESP-12E.
It’s smaller, cheaper, and has WiFi built in.
Plus- I can’t get hold of any Pi Zeros
at reasonable price/quantity (9).

I’m thinking flush mounting the ESP-12E on the backside of the PC board, surrounding the top-side mounted switching power regulator. I’m told that the ESP-12E is the way to go- so I’ll be redesigning my PC boards- stay tuned.