Update grafana.md

tutorials/grafana.md

 
+- passwd
+- configure any network interfaces as needed
+- sudo apt update
+- sudo apt upgrade
+- sudo reboot
+- sudo apt install git
+- git clone https://github.com/SensorsIot/IOTstack.git IOTstack
+- cd ~/IOTstack
+- ./menu.sh
+ - let it install dependencies
+ - restart when asked
+ - edit `/etc/group` and add `pi` to the `docker` group
+ - log out
+ - login again, run menu.sh again
+ - ignore error message because of docker version
+ - select "Build Stack"
+ - select grafana, influxdb, nodered using space
+ - enter node red menu, build addons list
+ - add generic ble to list
+ - hit enter
+ - go to docker commands
+ - select start stack
+ - wait for containers being built
+
+- use bluetoothctl to pair the card10
+ - `scan on`
+ - enter bluetooth menu on card10
+ - `pair CA:4D:10:01:FF:64` (replace with MAC that is shown in bluetooth memnu)
+ - type `yes`, hit yes on card10
+ - `disconnect CA:4D:10:01:FF:64`
+ - `exit`
+
+- create influx database
+ - `docker exec -it influxdb influx`
+ - `create database card10`
+ - (use card10)
+ - `create user "nodered" with password 'supersecure'`
+ - `create user "grafana" with password 'supersecure'`
+ - `grant all on card10 to nodered`
+ - `grant all on card10 to grafana`
+
+
+ - configure grafana
+ - ip:3000
+ - admin, admin
+ - select a new password
+ - add new data source influxdb
+ - url `http://influxdb:8086`
+ - database card10
+ - user grafana
+ - password supersecure
+ - method GET
+
+
+- add card10 in nodered
+ - go to ip:1880
+ - import flow.json
+ - change mac of device to CA:4D:10:01:FF:64 (same as above)
+ - set user of influxdb to `nodered`
+ - set password of influxdb to `supersecure`
+ - deploy flow
+ - reboot. check that card10 ble connection goes to "active"
+
+You should now see data coming in in the grafana dashboard that you created before under ip:3000
+