changes

libraries/includes/defines.h

@@ -0,0 +1,13 @@
+#ifndef _DEFINES_H_
+#define _DEFINES_H_
+
+
+
+#define ONE_WIRE 4
+#define LED_RED 3
+#define LED_GREEN 2
+#define LED_BLUE 45
+
+
+
+#endif /* _DEFINES_H_ */

readme.md

@@ -0,0 +1,30 @@
+# LoRaWAN Thermometer
+
+## Some pictures
+
+
+## Notes on the development environment
+* start dev environment using `startDevEnv.sh`
+* inside the container go into the directory `~/project`
+* set the env variable `ARDUINO_SKETCHBOOK_DIR` to `$PWD`
+* build application in container in directory `~/project` using `arduino-cli compile --fqbn=Heltec-esp32:esp32:WIFI_LoRa_32_V3 --export-binaries /home/arduino/project/sketch/`
+* flash device using `esptool.py --port /dev/tty.usbserial-0001 --baud 921600 --chip esp32s3 write_flash --flash_mode dio --flash_size 8MB 0x0 sketch.ino.bootloader.bin 0x8000 sketch.ino.partitions.bin 0x10000 sketch.ino.bin`
+
+
+From Arduino IDE:
+
+    /Users/wn/Library/Arduino15/packages/Heltec-esp32/tools/esptool_py/3.3.0/esptool 
+    --chip esp32s3 
+    --port /dev/cu.usbserial-0001 
+    --baud 921600 
+    --before default_reset 
+    --after hard_reset 
+    write_flash 
+    -z 
+    --flash_mode dio 
+    --flash_freq 80m 
+    --flash_size 8MB 
+    0x0 /var/folders/vy/d60s0tzx3mn8bfy6ssd27hl00000gn/T/arduino_build_190148/LoRaWan.ino.bootloader.bin 
+    0x8000 /var/folders/vy/d60s0tzx3mn8bfy6ssd27hl00000gn/T/arduino_build_190148/LoRaWan.ino.partitions.bin 
+    0xe000 /Users/wn/Library/Arduino15/packages/Heltec-esp32/hardware/esp32/0.0.7/tools/partitions/boot_app0.bin
+    0x10000 /var/folders/vy/d60s0tzx3mn8bfy6ssd27hl00000gn/T/arduino_build_190148/LoRaWan.ino.bin

sketch/configuration.cpp

@@ -0,0 +1,57 @@
+#include "configuration.h"
+#include "defines.h"
+#include "LoRaWan_APP.h"
+
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <Wire.h>  
+#include "HT_SSD1306Wire.h"
+
+#include <WiFi.h>
+#include <WiFiClient.h>
+#include <WebServer.h>
+#include <WiFiAP.h>
+
+#include <sstream>
+#include <string>
+#include <iomanip>
+
+
+
+
+const uint32_t MAGIC = 0xaffe0001;
+
+
+config_t myConfig = { 
+    .magic = MAGIC,
+    .appEui = { 0xa0, 0x57, 0x81, 0x00, 0x01, 0x12, 0xaa, 0xf4 },
+    .appKey = { 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88 }
+};
+
+uint8_t devEui[8];
+uint8_t appEui[8];
+uint8_t appKey[16];
+uint8_t nwkSKey[16];
+uint8_t appSKey[16];
+uint32_t devAddr;
+LoRaMacRegion_t loraWanRegion;
+bool overTheAirActivation;
+
+
+void configurationSetup() {
+}
+
+
+void configurationLoop() {
+}
+
+
+
+void configLoad() {
+    memcpy(appEui, myConfig.appEui, sizeof(appEui));
+    memcpy(appKey, myConfig.appKey, sizeof(appKey));
+    loraWanRegion = LORAMAC_REGION_EU868;
+    overTheAirActivation = true;
+}

sketch/configuration.h

@@ -0,0 +1,26 @@
+#ifndef _CONFIGURATION_H_
+#define _CONFIGURATION_H_
+
+
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+
+
+typedef struct config_s {
+    uint32_t magic;
+    uint8_t appEui[8];
+    uint8_t appKey[16];
+} config_t;
+
+
+
+void configurationSetup();
+void configurationLoop();
+
+void configLoad();
+
+
+#endif // _CONFIGURATION_H_

sketch/production.cpp

@@ -0,0 +1,118 @@
+#include "LoRaWan_APP.h"
+#include "defines.h"
+#include "configuration.h"
+#include <string.h>
+
+
+// from config.cpp
+extern config_t myConfig;
+
+
+/*LoraWan channelsmask, default channels 0-7*/ 
+uint16_t userChannelsMask[6]={ 0x00FF,0x0000,0x0000,0x0000,0x0000,0x0000 };
+
+/*LoraWan Class, Class A and Class C are supported*/
+DeviceClass_t  loraWanClass = CLASS_A;
+
+/*the application data transmission duty cycle.  value in [ms].*/
+uint32_t appTxDutyCycle = 15000;
+
+/*ADR enable*/
+bool loraWanAdr = true;
+
+/* Indicates if the node is sending confirmed or unconfirmed messages */
+bool isTxConfirmed = true;
+
+/* Application port */
+uint8_t appPort = 2;
+/*!
+* Number of trials to transmit the frame, if the LoRaMAC layer did not
+* receive an acknowledgment. The MAC performs a datarate adaptation,
+* according to the LoRaWAN Specification V1.0.2, chapter 18.4, according
+* to the following table:
+*
+* Transmission nb | Data Rate
+* ----------------|-----------
+* 1 (first)       | DR
+* 2               | DR
+* 3               | max(DR-1,0)
+* 4               | max(DR-1,0)
+* 5               | max(DR-2,0)
+* 6               | max(DR-2,0)
+* 7               | max(DR-3,0)
+* 8               | max(DR-3,0)
+*
+* Note, that if NbTrials is set to 1 or 2, the MAC will not decrease
+* the datarate, in case the LoRaMAC layer did not receive an acknowledgment
+*/
+uint8_t confirmedNbTrials = 4;
+
+/* Prepares the payload of the frame */
+static void prepareTxFrame( uint8_t port )
+{
+  appDataSize = 4;
+  appData[0] = 0x01;
+  appData[1] = 0x02;
+  appData[2] = 0x03;
+  appData[3] = 0x04;
+}
+
+RTC_DATA_ATTR bool firstrun = true;
+
+
+void productionSetup() {
+  Serial.println("Starting");
+  Mcu.begin();
+
+  deviceState = DEVICE_STATE_INIT;
+}
+
+void productionLoop()
+{
+  digitalWrite(LED_GREEN, HIGH);
+
+  switch( deviceState )
+  {
+    case DEVICE_STATE_INIT:
+    digitalWrite(LED_GREEN, LOW);
+    {
+      LoRaWAN.generateDeveuiByChipID();
+      LoRaWAN.init(loraWanClass,loraWanRegion);
+      break;
+    }
+    case DEVICE_STATE_JOIN:
+    {
+      Serial.println("Joining");
+      LoRaWAN.join();
+      break;
+    }
+    case DEVICE_STATE_SEND:
+    digitalWrite(LED_BLUE, HIGH);
+    {
+      Serial.println("sending");
+      prepareTxFrame( appPort );
+      LoRaWAN.send();
+      deviceState = DEVICE_STATE_CYCLE;
+      break;
+    }
+    case DEVICE_STATE_CYCLE:
+    digitalWrite(LED_BLUE, LOW);
+    {
+      // Schedule next packet transmission
+      txDutyCycleTime = appTxDutyCycle + randr( -APP_TX_DUTYCYCLE_RND, APP_TX_DUTYCYCLE_RND );
+      LoRaWAN.cycle(txDutyCycleTime);
+      deviceState = DEVICE_STATE_SLEEP;
+      break;
+    }
+    case DEVICE_STATE_SLEEP:
+    {
+      LoRaWAN.sleep(loraWanClass);
+      break;
+    }
+    default:
+    {
+      deviceState = DEVICE_STATE_INIT;
+      break;
+    }
+  }
+}

sketch/production.h

@@ -0,0 +1,9 @@
+#ifndef _PRODUCTION_H_
+#define _PRODUCTION_H_
+
+
+void productionSetup();
+void productionLoop();
+
+
+#endif // _PRODUCTION_H_

sketch/sketch.ino

@@ -0,0 +1,32 @@
+
+#include "defines.h"
+#include "config.h"
+#include "production.h"
+#include "configuration.h"
+
+
+// from config.cpp
+extern config_t myConfig;
+
+bool productionMode = false;
+
+void setup() {
+  pinMode(LED_BLUE, OUTPUT);
+  digitalWrite(LED_BLUE, LOW);
+  pinMode(LED_RED, OUTPUT);
+  digitalWrite(LED_RED, LOW);
+  pinMode(LED_GREEN, OUTPUT);
+  digitalWrite(LED_GREEN, LOW);
+
+
+  Serial.begin(115200);
+
+  configLoad();
+
+  productionSetup();
+}
+
+void loop()
+{
+  productionLoop();
+}

startDevEnv.sh

@@ -0,0 +1,9 @@
+#!/usr/local/bin/bash
+
+docker run \
+  -it \
+  --rm \
+  -v $PWD:/home/arduino/project \
+  registry.hottis.de/dockerized/build-env-arduino:0.29.0-10 \
+  bash
+