Tag Archives: teensy

GPS-enabled LoRaWAN temperature sensor

Together with the TTN Nijmegen community we are discussing possible applications of remote sensing nodes in Nijmegen 플러스토큰. To get a better view on the TTN coverage in Nijmegen and to get a feel for what works (and what not), we are working on the implementation of some nodes Capture.

The PoC2 TTN gateway will soon be installed by Michiel Nijssen at Maptools in Molenhoek. To help Michiel get started, we agreed that I would give him a fully functional node to play with 곰 플레이어 dts 코덱 다운로드. Michiel came up with a very concrete idea: it consists of a GPS-enabled temperature sensor that sends the data over LoRaWAN/TTN. Below you can find some details of a very fist implementation ojdbc8.jar 다운로드.

The node consists of

  • Teensy 3.2 MCU board
  • Dorji LoRa module
  • DS18b20 temperature sensor
  • Ublox NEO-M8N GPS module
  • 4k7 ohm resistor
  • small LED and 200 ohm resistor (not on photo)

I estimate that the material costs amount to 50 euro 오븐 브레이크. It still needs to be soldered in a more sturdy form-factor and a battery and enclosure need to be added.

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Bidirectional communication over The Things Network

I have been experimenting today with an RFM95W hooked up to a Teensy and managed to implement full bidirectional communication to/from The Things Network Download scratch programming.

The Teensy by default sends the temperature (from a ds18b20) with every transmit. If you press the button, it sends the button press event instead 제록스 복합기 드라이버. Furthermore, on every transmit it listens for a message (which can be scheduled downlong through the TTN dashboard), and blinks the led if a message is received Centos 7.4.

The Arduino code running on the Teensy can be found here and the server application code running on the Raspberry Pi here Windows 7 bootdisk.

Still to be done is to extend the server application code with the button (to circumvent the TTN dashboard alltogether) and to come up with an actual application that is smarter than a button and a LED 윈도우10 시험판. I am thinking to link both up and downlink to an IFTTT maker channel.

teensy_app2