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    • Puneit Thukral

      NRF51822 door sensor - help needed [Solved]
      Development • battery nrf5 door sensors nrf51822 • • Puneit Thukral  

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      waspie

      @Puneit-Thukral Could you post your full working sketch please? I'm revisiting some of my 51822 nodes that have sat collecting dust for a long time and thought i might try to get them working again.
    • openhardware.io

      💬 Light and shock sensor | nRF52840 | MySensors
      OpenHardware.io • light nrf52 nrf52840 nrf5 lux shock • • openhardware.io  

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      scalz

      Nice project manufacturers datasheets, RF appnotes etc all mention this, with results for different usecases (like gnd plane size etc). I mentioned it a few times on the forum: nothing under or near antenna (keep out zone) their matching circuit, and CE/FCC certif are based on their development boards+their antenna if external, often without enclosure. there are a very few pcb antennas which are resilient to untuning. ceramic or meandered pcb are usually more compact but less resilient (like when you approach your hand and device suddently has better or worst communication) once you change any of these parameters (board shape, gnd size, enclosure etc), it breaks FCC, and may need retuning, still you can get useable range. "ideally" tuning should be done once enclosed for example. manufacturers can't cover all cases. on my side, I try to follow these rules. and when interested in a design or a device, I check this. Mainly the routing+gnd, antenna choice, keepout zone, and orientation vs my usecase (long range needed or not for example)
    • openhardware.io

      💬 E73-2G4M04S BREADBOARD
      OpenHardware.io • nrf52832 nrf52 nrf5 breadboard • • openhardware.io  

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      No one has replied

    • openhardware.io

      💬 EFEKTA nRF5 Temperature & Humidity mini sensor
      OpenHardware.io • nrf52832 nrf52 temperature & humidity sensor nrf5 sht20 • • openhardware.io  

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      jeremushka

      Please Is it possible to buy only PCB? Do you plan also to release your sketch?
    • openhardware.io

      💬 EFEKTA nRF5-C Motion sensor
      OpenHardware.io • nrf52832 motion nrf52 nrf5 bh1750 lux s16-l201d • • openhardware.io  

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      1328
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      shajek

      hello @berkseo can you share sketch for this sensor ? i am very intrested about this thank you PS: great job !
    • openhardware.io

      💬 EFEKTA nRF5 Motion sensor
      OpenHardware.io • nrf52832 motion nrf52 nrf5 lux • • openhardware.io  

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      Omemanti

      Can you tell something about the range of this node? And do you see a chance to post the schematic?
    • openhardware.io

      💬 MySensors NRF5 Platform
      OpenHardware.io • mysensors contest2017 nrf52 nrf5 nrf51 • • openhardware.io  

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      nagelc

      I think you can just set the I2C pins in MyBoardNRF5.h without remapping the pins in MyBoardNRF5.cpp. Look in MyBoardNRF5.h, under the Wire Interfaces section. Set SDL and SCA to 30 and 31 as appropriate for your board.