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    • openhardware.io

      💬 Air quality and weather forecast sensor
      OpenHardware.io • nrf52840 bme280 air quality weather forecast nrf52833 sgp40 max44009 • • openhardware.io  

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      berkseo

      https://hackaday.com/2021/07/05/diy-air-quality-sensor/
    • openhardware.io

      💬 EFEKTA V4 Temp&Hum&Press sensor with E-Ink 1.54
      OpenHardware.io • nrf52832 nrf52 si7021 nrf52840 bme280 htu21d sht21 e-ink display nrf52833 • • openhardware.io  

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      No one has replied

    • openhardware.io

      💬 rayBeacon: nRF52 on-the-go Development Kit
      OpenHardware.io • nrf52 nrf52840 button nrf52833 raytrails cell • • openhardware.io  

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      NeverDie

      @Mishka Very nice work indeed. One question though: I don't see an antenna of any kind built into the PCB. Maybe I'm just not seeing it, or is there none? I do see a connection for an off-board near field antenna, but off-hand I don't see where the antenna is for 2.4Ghz RF. Oh, I see it now. You're using a chip antenna. Got it. Well, now that you've been using it for a while, how is the Raybeacon working out for you?