Comment on Enclosure/Room environmental monitors

alzymologist@sopuli.xyz ⁨2⁩ ⁨weeks⁩ ago

• qprimed@lemmy.ml ⁨2⁩ ⁨weeks⁩ ago

  So poking around, here is what I have been thinking about.

  Multi-sensor - cabled

  • Adafruit Feather RP2040 Adalogger (RP2040, STEMMA QT, microSD, LiPo connector, USB-C)
  • Adafruit PCA9546 4-Channel STEMMA QT I2C Multiplexer (4 downstream STEMMA QT ports)
  • Adafruit SHT40 Temp/Humidity Breakout (STEMMA QT, ±0.2°C / ±1.8% RH)

  Single sensor - direct attached

  • Adafruit SHT45 Trinkey (USB Temp and Humidity Sensor with PTFE)

  or

  • Adafruit SHT41 Trinkey (USB Temperature and Humidity Sensor)

  available libraries should make coding this up fairly straightforward. I have not worked with adafruit h/w before, but definitely interested I doing so.

  source

  • alzymologist@sopuli.xyz ⁨2⁩ ⁨weeks⁩ ago

    ah it’s this way.

    ok, just consider buying bare sensors and attaching them to some MCU boards you like - with good connectivity and all - some distance away from the boards (working MCU alters readings significantly unless you bump it into ultra low power, which makers of these simple adafruuit probes often do not care about). It’s way cheaper and easier to integrate in most cases, also you get to choose sensors just for the task, often you can get insane performance (like, glass-clad Pt thermal probes are often surprisingly cheap, for example)

    source

    • qprimed@lemmy.ml ⁨2⁩ ⁨weeks⁩ ago

      thanks for the reply and the heads up! going to order some gear today and play when it gets here. will update the thread as things progress.

      source