Skip to content

Latest commit

 

History

History
81 lines (49 loc) · 2.32 KB

README.md

File metadata and controls

81 lines (49 loc) · 2.32 KB
Raw

Temperature Mapper

Description

Temperature Mapper contains code to collect temperature from a temperature sensor which connected to a raspberry Pi through gpio.

The following diagram has been followed to make the connection with the temperature sensor in this case :-

Depending on the expected state of the temperature sensor, the program collect the temperature.

Prerequisites

Hardware Prerequisites

  1. RaspBerry-Pi (RaspBerry-Pi 3/4 has been used for this demo)
  2. GPIO
  3. Temperature sensor (DHT11)

Software Prerequisites

  1. Golang 1.14+
  2. KubeEdge 1.5+

Steps to reproduce

  1. Connect the temperature sensor to the RaspBerry-Pi using the GPIO as shown in the circuit diagram above.

  2. Clone and run KubeEdge.

  3. Clone the kubeedge/examples repository.

$ git clone https://github.com/kubeedge/examples.git $GOPATH/src/github.com/kubeedge/examples
  1. Create the temperature device model and device instance.
$ cd $GOPATH/src/github.com/kubeedge/examples/temperature-demo/crds
$ kubectl apply -f devicemodel.yaml
$ sed -i "s#edge-node#<your-edge-node-name>#g" instance.yaml
$ kubectl apply -f device.yaml
  1. Build the mapper to run in RaspBerry-Pi.
cd $GOPATH/src/github.com/kubeedge/examples/temperature-demo
docker build -t <your_dockerhub_username>/kubeedge-temperature-mapper:<your_tag> .
docker push <your_dockerhub_username>/kubeedge-temperature-mapper:<your_tag>

# Note: Before trying to push the docker image to the remote repository please ensure that you have signed into docker from your node, if not please type the followig command to sign in
  1. Deploy the temperature mapper.
cd $GOPATH/src/github.com/kubeedge/examples/temperature-demo/

# Please enter the following details in the deployment.yaml :-
#    1. Replace "edge-node" with the name of your edge node at spec.template.spec.nodeSelector.name
#    2. Replace "kubeedge/temperature-mapper-demo:arm32" with your own image at spec.template.spec.containers.image

kubectl create -f deployment.yaml
  1. The mapper will report back the temperature to cloud after updating. Observe the temperature in the cloud side.
kubectl get device temperature -oyaml -w