added register

.gitignore

@@ -0,0 +1,288 @@
+# ---> VisualStudioCode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+!.vscode/*.code-snippets
+
+# Local History for Visual Studio Code
+.history/
+
+# Built Visual Studio Code Extensions
+*.vsix
+
+# ---> Python
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/#use-with-ide
+.pdm.toml
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+
+# ---> esp-idf
+# gitignore template for esp-idf, the official development framework for ESP32
+# https://github.com/espressif/esp-idf
+
+build/
+sdkconfig
+sdkconfig.old
+
+# ---> CMake
+CMakeLists.txt.user
+CMakeCache.txt
+CMakeFiles
+CMakeScripts
+Testing
+Makefile
+cmake_install.cmake
+install_manifest.txt
+compile_commands.json
+CTestTestfile.cmake
+_deps
+
+# ---> C
+# Prerequisites
+*.d
+
+# Object files
+*.o
+*.ko
+*.obj
+*.elf
+
+# Linker output
+*.ilk
+*.map
+*.exp
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+*.i*86
+*.x86_64
+*.hex
+
+# Debug files
+*.dSYM/
+*.su
+*.idb
+*.pdb
+
+# Kernel Module Compile Results
+*.mod*
+*.cmd
+.tmp_versions/
+modules.order
+Module.symvers
+Mkfile.old
+dkms.conf
+
+# ---> C++
+# Prerequisites
+*.d
+
+# Compiled Object files
+*.slo
+*.lo
+*.o
+*.obj
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Compiled Dynamic libraries
+*.so
+*.dylib
+*.dll
+
+# Fortran module files
+*.mod
+*.smod
+
+# Compiled Static libraries
+*.lai
+*.la
+*.a
+*.lib
+
+# Executables
+*.exe
+*.out
+*.app
+
+# Backend config
+backend/config.py 
+

.gitmodules

@@ -1,3 +1,3 @@
 [submodule "node/components/ttn-esp32"]
 	path = node/components/ttn-esp32
-	url = https://git.mosad.xyz/localhorst/ttn-esp32.git
+	url = https://git.mosad.xyz/localhorst/ttn-esp32.git

README.md

@@ -1,14 +1,30 @@
 # msv-clubhouse-node
+- Work in progress !
+- Technical demo
+
+## Overview
+
+![architecture diagram](doc/architecture.png)
 
 ## Hardware ##
 
-[ESP32 LoRa 868MHz OLED DevBoard](https://de.aliexpress.com/item/33018609928.html)
+- [ESP32 LoRa 868MHz OLED DevBoard](https://de.aliexpress.com/item/33018609928.html)
+- [Bosch BMP280](https://de.aliexpress.com/item/1005003406725433.html)
+- [Reed Switch](https://de.aliexpress.com/item/1005004549803034.html)
+- [Wind speed sensor](https://de.aliexpress.com/item/1005001330214766.html)
+- [Wind direction sensor](https://de.aliexpress.com/item/4000590284491.html)
 
-[Wind speed sensor](https://de.aliexpress.com/item/1005001330214766.html)
 
-[Wind direction sensor](https://de.aliexpress.com/item/4000590284491.html)
+## Register Device at TTN
 
-## Build ##
+0. Register manually a device.
+1. Frequency plan Europe 863-870 MHz (SF9 for RX2 - recommended)
+2. LoRaWAN version LoRaWAN Specification 1.0.2
+3. Regional Parameters version	RP001 Regional Parameters 1.0.2
+4. JoinEUI all zeros
+5. Generate keys
+
+## Build Node Firmware
 
 0. Clone repo
 1. Init GIT-submodules
@@ -43,7 +59,7 @@ TTN LoRa frequency / region
 - `nano /etc/systemd/system/msv-clubhouse-backend.service`
 - `systemctl daemon-reload && systemctl enable --now msv-clubhouse-backend.service`
 
-JS Payload Formatter:
+## JS Payload Formatter
 
 ```
 function Decoder(bytes, port) {
@@ -116,4 +132,10 @@ function sflt162f(rawSflt16)
 
 	return f_unscaled;
 	}
-    ```
+```
+
+## Grafana Dashboard
+
+see `frontend/`
+
+![screenshot of grafana-dashboard](doc/screenshot_dashboard.png)

doc/architecture.drawio

@@ -0,0 +1 @@
+<mxfile host="app.diagrams.net" modified="2023-03-08T19:13:03.452Z" agent="5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36" version="16.2.6" etag="yEJ7_XEJp48WvqINRjwf" type="device"><diagram id="C9XAk7C7BT5UWB5t5WFN" name="Page-1">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</diagram></mxfile>

frontend/grafana_dashboard.json

@@ -36,21 +36,18 @@
       "description": "Wenn die Türe offen, dann ist wohl jemand am Platz.",
       "fieldConfig": {
         "defaults": {
-          "color": {
-            "mode": "thresholds"
-          },
           "mappings": [
             {
               "options": {
                 "0": {
-                  "color": "red",
-                  "index": 1,
-                  "text": "Türe geschlossen"
-                },
-                "1": {
                   "color": "green",
                   "index": 0,
                   "text": "Türe offen"
+                },
+                "1": {
+                  "color": "red",
+                  "index": 1,
+                  "text": "Türe geschlossen"
                 }
               },
               "type": "value"
@@ -68,7 +65,8 @@
                 "value": 80
               }
             ]
-          }
+          },
+          "unit": "short"
         },
         "overrides": []
       },
@@ -80,8 +78,8 @@
       },
       "id": 2,
       "options": {
-        "colorMode": "value",
-        "graphMode": "area",
+        "colorMode": "background",
+        "graphMode": "none",
         "justifyMode": "auto",
         "orientation": "auto",
         "reduceOptions": {
@@ -550,7 +548,7 @@
           },
           "editorMode": "builder",
           "expr": "msv_clubhouse_temperature",
-          "legendFormat": "Luftdruck Außen",
+          "legendFormat": "Temperatur Außen",
           "range": true,
           "refId": "A"
         }
@@ -558,6 +556,193 @@
       "title": "Tempertur Außen",
       "type": "timeseries"
     },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "x08D2Hlnz"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "barAlignment": 0,
+            "drawStyle": "line",
+            "fillOpacity": 0,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "lineInterpolation": "linear",
+            "lineWidth": 1,
+            "pointSize": 5,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "showPoints": "auto",
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "none"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "decimals": 2,
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          },
+          "unit": "velocityms"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 15
+      },
+      "id": 16,
+      "options": {
+        "legend": {
+          "calcs": [],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "x08D2Hlnz"
+          },
+          "editorMode": "builder",
+          "expr": "msv_clubhouse_windspeed",
+          "legendFormat": "Windgeschwindigkeit",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Windgeschwindigkeit ",
+      "type": "timeseries"
+    },
+    {
+      "collapsed": false,
+      "gridPos": {
+        "h": 1,
+        "w": 24,
+        "x": 0,
+        "y": 23
+      },
+      "id": 14,
+      "panels": [],
+      "title": "Metadaten des Systems",
+      "type": "row"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "x08D2Hlnz"
+      },
+      "description": "",
+      "fieldConfig": {
+        "defaults": {
+          "mappings": [
+            {
+              "options": {
+                "0": {
+                  "color": "red",
+                  "index": 1,
+                  "text": "Error"
+                },
+                "1": {
+                  "color": "green",
+                  "index": 0,
+                  "text": "OK"
+                }
+              },
+              "type": "value"
+            }
+          ],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          },
+          "unit": "short"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 6,
+        "w": 5,
+        "x": 0,
+        "y": 24
+      },
+      "id": 18,
+      "options": {
+        "colorMode": "background",
+        "graphMode": "none",
+        "justifyMode": "auto",
+        "orientation": "auto",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "textMode": "auto"
+      },
+      "pluginVersion": "9.3.6",
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "x08D2Hlnz"
+          },
+          "editorMode": "builder",
+          "expr": "msv_clubhouse_exporter_scrape_healthy",
+          "legendFormat": "__auto",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Zustand TTN Scrape",
+      "type": "stat"
+    },
     {
       "datasource": {
         "type": "prometheus",
@@ -620,8 +805,8 @@
       "gridPos": {
         "h": 9,
         "w": 12,
-        "x": 0,
-        "y": 15
+        "x": 5,
+        "y": 24
       },
       "id": 10,
       "options": {
@@ -714,8 +899,8 @@
       "gridPos": {
         "h": 9,
         "w": 12,
-        "x": 12,
-        "y": 15
+        "x": 5,
+        "y": 33
       },
       "id": 12,
       "options": {
@@ -761,6 +946,6 @@
   "timezone": "",
   "title": "MSV Moos Modellflugplatz",
   "uid": "nuH5csxVz",
-  "version": 6,
+  "version": 11,
   "weekStart": ""
 }

node/.vscode/settings.json

@@ -0,0 +1,5 @@
+{
+    "idf.adapterTargetName": "esp32",
+    "idf.port": "/dev/ttyUSB0",
+    "idf.flashType": "UART"
+}

node/main/main.cpp

@@ -5,24 +5,29 @@
 void sendMessages(void* pvParameter)
 {
     while (1) {
-        printf("Sending message...\n");
+        dummyPayload();
+        printf("Sending msg...\n");
         ssd1306_display_clear();
-        const char *pcTask1 = "Sending message...\n";
+        const char *pcTask1 = "Sending msg...\n";
 	    xTaskCreate(&task_ssd1306_display_text, "task_ssd1306_display_text", 4096, (void *) pcTask1, 5, NULL);
-        TTNResponseCode res = ttn.transmitMessage(msgData, sizeof(msgData) - 1);
+        TTNResponseCode res = ttn.transmitMessage((uint8_t*) &pDummyPayload, sizeof(pDummyPayload));
 
         if(res == kTTNSuccessfulTransmission){
-            printf("Message sent.\n");
+            printf("msg sent.\n");
             ssd1306_display_clear();
-            const char *pcTask1 = "Message sent.\n";
+            const char *pcTask1 = "msg sent.\n";
 	        xTaskCreate(&task_ssd1306_display_text, "task_ssd1306_display_text", 4096, (void *) pcTask1, 5, NULL);
         }else{
-            printf("Transmission failed.\n");
+            printf("Transm failed.\n");
             ssd1306_display_clear();
-            const char *pcTask1 = "Transmission failed.\n";
+            const char *pcTask1 = "Transm failed.\n";
 	        xTaskCreate(&task_ssd1306_display_text, "task_ssd1306_display_text", 4096, (void *) pcTask1, 5, NULL);
         }
 
+        printf("sleeping...\n");
+        ssd1306_display_clear();
+        const char *pcTask2 = "sleeping...\n";
+	    xTaskCreate(&task_ssd1306_display_text, "task_ssd1306_display_text", 4096, (void *) pcTask2, 5, NULL);
         vTaskDelay(TX_INTERVAL * pdMS_TO_TICKS(1000));
     }
 }
@@ -35,6 +40,28 @@ void messageReceived(const uint8_t* message, size_t length, ttn_port_t port)
     printf("\n");
 }
 
+void dummyPayload(){
+
+    uint16_t u16Temperature = (uint16_t) esp_random();
+    uint16_t u16Pressure = (uint16_t) esp_random();
+    uint16_t u16Windspeed = (uint16_t) esp_random();
+    uint16_t u16Winddirection = (uint16_t) esp_random();
+
+    if((esp_random()%2) == 0){
+        pDummyPayload.auxState = AUX_STATE_DOOR_CLOSED;
+    }else{
+        pDummyPayload.auxState = AUX_STATE_DOOR_OPEN;
+    }
+
+    memcpy(pDummyPayload.degreesC, &u16Temperature, 2);
+    memcpy(pDummyPayload.pressure, &u16Pressure, 2);
+    memcpy(pDummyPayload.windspeed, &u16Windspeed, 2);
+    memcpy(pDummyPayload.winddirection, &u16Winddirection, 2);
+
+
+
+}
+
 extern "C" void app_main(void)
 {
     esp_err_t err;
@@ -66,6 +93,7 @@ extern "C" void app_main(void)
     // Register callback for received messages
     ttn.onMessage(messageReceived);
 
+    printf("random: %li\n", esp_random());
 
     i2c_master_init();
 	ssd1306_init();

node/main/main.h

@@ -6,6 +6,8 @@
 #include "driver/gpio.h"
 #include "nvs_flash.h"
 #include "driver/i2c.h"
+#include "esp_random.h"
+#include <cstring>
 
 #include "TheThingsNetwork.h"
 
@@ -27,7 +29,23 @@
 static TheThingsNetwork ttn;
 
 const unsigned TX_INTERVAL = 60*15;
-static uint8_t msgData[] = "BBBBBBBB"; //8x 0x
+//static uint8_t msgData[] = "BBBBBBBB"; //8x 0x
 
+#define AUX_STATE_DOOR_OPEN 0x1
+#define AUX_STATE_DOOR_CLOSED 0x2
+
+struct payload {
+    uint8_t degreesC[2];
+    uint8_t pressure[2];
+    uint8_t windspeed[2];
+    uint8_t winddirection[2];
+    uint8_t auxState;
+};
+
+
+static struct payload pDummyPayload;
+
+
+void dummyPayload(void);
 
 #endif /* MAIN_H */