8 changed files with 22 additions and 401 deletions
--- a/.gitignore
+++ b/.gitignore
@ -1,5 +1 @@
 mini-beieli-provision-cubecell
-appkey
-calibrate
-MiniBeieliNodeSketch/build
-cyacd
--- a/README.md
+++ b/README.md
@ -20,77 +20,10 @@ Autor: Joerg Lehmann, nbit Informatik GmbH

 Das sind die verwendeten Libraries [1]:

-| URL | Branch | Commit | Commit Date |
-| --- | ------ | -----  | ----------- |
-| https://github.com/HelTecAutomation/ASR650x-Arduino.git  | d9402fe | Tue, 8 Jul 2025 09:52:16 +0800  |
-| https://github.com/sparkfun/SparkFun_Qwiic_Scale_NAU7802_Arduino_Library.git  | e6b91f8 | Mon, 26 Feb 2024 09:55:18 +0000  |
-| https://github.com/sparkfun/SparkFun_BME280_Arduino_Library.git  | c42e780 | Tue, 19 Sep 2023 14:53:45 -0600  |
+| URL | Commit | Commit Date |
+| --- | -----  | ----------- |
+| https://github.com/HelTecAutomation/ASR650x-Arduino.git  | 9856523 | Thu, 4 Feb 2021 18:02:48 +0800  |
+| https://github.com/sparkfun/SparkFun_Qwiic_Scale_NAU7802_Arduino_Library.git  | 688f255 | Fri, 3 Jan 2020 12:35:22 -0700  |
+| https://github.com/sparkfun/SparkFun_BME280_Arduino_Library.git  | 0b5eabf | Wed, 30 Dec 2020 20:44:27 -0700  |

-`
 [1]: echo "| $(git remote -v |grep fetch |awk '{print $2}' |tr '\n' ' ') | $(git log --pretty=format:'%h | %cD ' -n 1) |"
-`
-
-## Wir verwenden arduino-cli
-
-Installation:
-`
-$ brew install arduino-cli
-$ arduino-cli version
-arduino-cli  Version: 1.2.2 Commit: Homebrew Datum: 2025-04-22T13:49:40Z
-
-$ arduino-cli sketch new MiniBeieliNodeSketch
-
-Install Board aus Git
-
-mkdir -p ~/Documents/Arduino/hardware/CubeCell
-cd ~/Documents/Arduino/hardware/CubeCell
-git clone https://github.com/HelTecAutomation/ASR650x-Arduino.git CubeCell
-cd CubeCell/tools
-python get.py
-
-Install Libraries (from Git...):
-
-$ cd ~/Documents/Arduino/libraries
-$ git clone https://github.com/sparkfun/SparkFun_Qwiic_Scale_NAU7802_Arduino_Library.git
-$ git clone https://github.com/sparkfun/SparkFun_BME280_Arduino_Library.git
-
-Set FQBN (show possible boards with 'arduino-cli board listall', without '-V2' for old CubeCell):
-$ FQBN="CubeCell:CubeCell:CubeCell-Board-V2:LORAWAN_REGION=6,LORAWAN_CLASS=0,LORAWAN_DEVEUI=0,LORAWAN_NETMODE=0,LORAWAN_ADR=0,LORAWAN_UPLINKMODE=1,LORAWAN_Net_Reserve=0,LORAWAN_AT_SUPPORT=0,LORAWAN_RGB=0,LORAWAN_DebugLevel=0"
-
-Compile:
-$ arduino-cli compile --export-binaries --clean --fqbn ${FQBN} MiniBeieliNodeSketch
-
-=== Beispiel ===
-joerg@mbp mini-beieli-node-cubecell % arduino-cli compile --export-binaries --clean --fqbn ${FQBN} MiniBeieliNodeSketch
-Der Sketch verwendet 114188 Bytes (87%) des Programmspeicherplatzes. Das Maximum sind 131072 Bytes.
-
-Benutzte Bibliothek                          Version Pfad
-LoRa                                         1.0     /Users/joerg/Documents/Arduino/hardware/CubeCell/CubeCell/libraries/LoRa
-LoraMac_102                                  1.0.2   /Users/joerg/Documents/Arduino/hardware/CubeCell/CubeCell/libraries/LoraWan102
-SparkFun BME280                              2.0.10  /Users/joerg/Documents/Arduino/libraries/SparkFun_BME280_Arduino_Library
-SparkFun Qwiic Scale NAU7802 Arduino Library 1.0.5   /Users/joerg/Documents/Arduino/libraries/SparkFun_Qwiic_Scale_NAU7802_Arduino_Library
-
-Verwendete Plattform Version Pfad
-CubeCell:CubeCell    1.0.0   /Users/joerg/Documents/Arduino/hardware/CubeCell/CubeCell
-=============
-
-Upload:
-$ arduino-cli upload --verbose --fqbn ${FQBN} -p /dev/tty.usbserial-0001 MiniBeieliNodeSketch
-
-*.cyacd-File kann kopiert werden nach cyacd-Directory:
-Beispiel:
-
-joerg@z240 mini-beieli-node-cubecell % arduino-cli upload --verbose --fqbn ${FQBN} -p /dev/tty.usbserial-0001 MiniBeieliNodeSketch
-"/Users/joerg/Documents/Arduino/hardware/CubeCell/CubeCell/tools/CubeCellflash/CubeCellflash" -serial "/dev/tty.usbserial-0001" "/private/var/folders/n6/jjw6yp4s2dz0sd76rz3k7mzm0000gn/T/arduino/sketches/97CDDDDD36F10A320334F076837B4C34/CubeCell_Board_V2_REGION_EU868_RGB_0.cyacd"
-
-$ mkdir -p cyacd/v2/20240909
-$ cp /private/var/folders/n6/jjw6yp4s2dz0sd76rz3k7mzm0000gn/T/arduino/sketches/97CDDDDD36F10A320334F076837B4C34/CubeCell_Board_V2_REGION_EU868_RGB_0.cyacd cyacd/v2/20240909
-
-Alternative zum Upload der Firmware:
-$ /Users/joerg/Documents/Arduino/hardware/CubeCell/CubeCell/tools/CubeCellflash/CubeCellflash -serial /dev/tty.usbserial-0001 cyacd/v2/20240909/CubeCell_Board_REGION_EU868_RGB_0.cyacd
-
-USB-Device kann am einfachsten wie folgt bestimmt werden:
-
-joerg@mbp mini-beieli-node-cubecell % ls -l /dev/tty.usbserial*
-crw-rw-rw-  1 root  wheel  0x9000004 28 Dez 19:38 /dev/tty.usbserial-0001
-`
--- a/appkey.go
+++ b/appkey.go
@ -1,62 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"os"
-	"path/filepath"
-)
-
-func getAppKey(deveui string) string {
-	if len(deveui) == 16 {
-		appkey := fmt.Sprintf("%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c",
-			deveui[10],
-			deveui[3],
-			deveui[4],
-			deveui[7],
-			deveui[15],
-			deveui[9],
-			deveui[11],
-			deveui[2],
-			deveui[0],
-			deveui[8],
-			deveui[1],
-			deveui[6],
-			deveui[5],
-			deveui[12],
-			deveui[14],
-			deveui[13],
-			deveui[3],
-			deveui[6],
-			deveui[12],
-			deveui[7],
-			deveui[15],
-			deveui[1],
-			deveui[9],
-			deveui[11],
-			deveui[2],
-			deveui[10],
-			deveui[0],
-			deveui[8],
-			deveui[5],
-			deveui[14],
-			deveui[4],
-			deveui[13])
-
-		return appkey
-
-	} else {
-		fmt.Printf("devEui has wrong length: %s\n", deveui)
-		return ""
-	}
-}
-
-func main() {
-	if len(os.Args) != 2 {
-		fmt.Println("usage: " + filepath.Base(os.Args[0]) + " <DevEui>")
-		os.Exit(1)
-	}
-
-	devEui := os.Args[1]
-	appKey := getAppKey(devEui)
-	fmt.Printf("%s\n", appKey)
-}
--- a/calibrate.go
+++ b/calibrate.go
@ -1,152 +0,0 @@
-package main
-
-import (
-	"bufio"
-	"encoding/json"
-	"fmt"
-	"github.com/tarm/serial"
-	"log"
-	"os"
-	"path/filepath"
-	"strconv"
-	"strings"
-	"time"
-)
-
-type SensorData struct {
-	WeightARaw string `json:"weight_a_raw"`
-	WeightBRaw string `json:"weight_b_raw"`
-}
-
-// returns last line of output
-func sendCommand(p *serial.Port, command string) string {
-	fmt.Printf("%s\n", command)
-	var last_line string = ""
-	p.Flush()
-	_, err := p.Write([]byte(command))
-	if err != nil {
-		log.Fatal(err)
-	}
-	buf := make([]byte, 1024)
-
-	time.Sleep(500 * time.Millisecond)
-
-	n, _ := p.Read(buf)
-	if n > 0 {
-		last_line_arr := strings.Split(string(buf[:n]), "\n")
-		//fmt.Printf("AAA: %+q\n", last_line_arr)
-		last_line = last_line_arr[len(last_line_arr)-2]
-
-		fmt.Print(string(buf[:n]))
-	}
-	return last_line
-}
-
-// returns output
-func sendCommandJSON(p *serial.Port, command string) string {
-	fmt.Printf("%s\n", command)
-	var res string = ""
-	p.Flush()
-	_, err := p.Write([]byte(command))
-	if err != nil {
-		log.Fatal(err)
-	}
-	buf := make([]byte, 1024)
-
-	time.Sleep(3000 * time.Millisecond)
-
-	n, _ := p.Read(buf)
-	if n > 0 {
-		res = string(buf[:n-1])
-	}
-	return res
-}
-
-func getDevEui(p *serial.Port) string {
-	var reply = sendCommand(p, "AT+ChipID=?")
-	//fmt.Printf("XXX%sYYY\n",reply)
-	if len(reply) >= 20 {
-		return "0000" + reply[8:20]
-	} else {
-		return ""
-	}
-}
-
-func ReadSensorData(p *serial.Port) SensorData {
-	var reply = sendCommandJSON(p, "AT+READ_SENSORS=?")
-	fmt.Printf("XXX%sYYY\n", reply)
-
-	var data SensorData
-	json.Unmarshal([]byte(reply), &data)
-	//fmt.Printf("%v \n", data)
-
-	//fmt.Printf("weight_a_raw: %s\n", data.WeightARaw)
-	//fmt.Printf("weight_b_raw: %s\n", data.WeightBRaw)
-
-	return data
-}
-
-func readSerial(p *serial.Port) {
-	p.Flush()
-	buf := make([]byte, 32)
-
-	time.Sleep(200 * time.Millisecond)
-	n, _ := p.Read(buf)
-	for n > 0 {
-		// ignoring error as EOF raises error on Linux
-		reply := string(buf[:n])
-		fmt.Print(reply)
-		n, _ = p.Read(buf)
-	}
-}
-
-func main() {
-	if len(os.Args) != 3 {
-		fmt.Println("usage: " + filepath.Base(os.Args[0]) + " <SerialDevice> <calibration_weight_in_gram>")
-		os.Exit(1)
-	}
-
-	serialdev := os.Args[1]
-	calWeightS := os.Args[2]
-	calWeight, _ := strconv.Atoi(calWeightS)
-
-	c := &serial.Config{Name: serialdev, Baud: 115200, ReadTimeout: time.Second * 1}
-	s, err := serial.OpenPort(c)
-	if err != nil {
-		log.Fatal("Problem mit Serial Interface")
-	}
-
-	sendCommand(s, "AT+XXX")
-	devEui := getDevEui(s)
-	reader := bufio.NewReader(os.Stdin)
-	if devEui != "" {
-		fmt.Println("Hit Return when no weight is on scale (neither on A not on B)")
-		reader.ReadString('\n')
-		sendCommand(s, "AT+XXX")
-		sensorData := ReadSensorData(s)
-		fmt.Printf("%v\n", sensorData)
-		a0, _ := strconv.Atoi(sensorData.WeightARaw)
-		b0, _ := strconv.Atoi(sensorData.WeightBRaw)
-		sendCommand(s, "AT+CAL_A_0="+sensorData.WeightARaw)
-		sendCommand(s, "AT+CAL_B_0="+sensorData.WeightBRaw)
-		fmt.Println("Put Weight on Scale A, then hit Return")
-		reader.ReadString('\n')
-		sendCommand(s, "AT+XXX")
-		sensorData = ReadSensorData(s)
-		aW, _ := strconv.Atoi(sensorData.WeightARaw)
-		fmt.Println("Put Weight on Scale B, then hit Return")
-		reader.ReadString('\n')
-		sendCommand(s, "AT+XXX")
-		sensorData = ReadSensorData(s)
-		bW, _ := strconv.Atoi(sensorData.WeightBRaw)
-		calA := float64(aW-a0) / float64(calWeight)
-		calB := float64(bW-b0) / float64(calWeight)
-		sendCommand(s, "AT+CAL_A_FACTOR="+fmt.Sprintf("%f", calA))
-		sendCommand(s, "AT+CAL_B_FACTOR="+fmt.Sprintf("%f", calB))
-		sendCommand(s, "AT+READ_CONFIG=?")
-		sendCommand(s, "AT+RESET=1")
-		readSerial(s)
-	} else {
-		log.Fatal("Could not get devEui (that is: ChipID)")
-	}
-}
--- a/go.mod
+++ b/go.mod
@ -1,7 +0,0 @@
-module gitlab.com/mini-beieli-node-cubecell/v2
-
-go 1.17
-
-require github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07
-
-require golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e // indirect
--- a/go.sum
+++ b/go.sum
@ -1,4 +0,0 @@
-github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07 h1:UyzmZLoiDWMRywV4DUYb9Fbt8uiOSooupjTq10vpvnU=
-github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07/go.mod h1:kDXzergiv9cbyO7IOYJZWg1U88JhDg3PB6klq9Hg2pA=
-golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e h1:fLOSk5Q00efkSvAm+4xcoXD+RRmLmmulPn5I3Y9F2EM=
-golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
--- a/MiniBeieliNodeSketch/MiniBeieliNodeSketch.ino
+++ b/MiniBeieliNodeSketch/MiniBeieliNodeSketch.ino
@ -12,16 +12,19 @@ BME280 bme280;
 /******************************************************************************/
 /* Firmware Version                                                           */
 /******************************************************************************/
-static const int32_t fwVersion = 20250726;
+static const int32_t fwVersion = 20210205;

 /******************************************************************************/
 /* LoraWAN Settings                                                           */
 /******************************************************************************/

 /* OTAA para*/
-uint8_t devEui[8];
-uint8_t appEui[8];
-uint8_t appKey[16];
+//uint8_t devEui[] = { 0x22, 0x32, 0x33, 0x00, 0x00, 0x88, 0x88, 0x02 };
+//uint8_t appEui[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+//uint8_t appKey[] = { 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x66, 0x01 };
+uint8_t devEui[] = { 0x00, 0x00, 0xd3, 0xa6, 0x59, 0x83, 0x3b, 0x25 };
+uint8_t appEui[] = { 0x70, 0xb3, 0xd5, 0x7e, 0xd0, 0x02, 0xe5, 0xab };
+uint8_t appKey[] = { 0x00, 0x00, 0xd3, 0xa6, 0x59, 0x83, 0x3b, 0x25, 0x00, 0x00, 0xd3, 0xa6, 0x59, 0x83, 0x3b, 0x25 };

 /* ABP para*/
 uint8_t nwkSKey[] = { 0x15, 0xb1, 0xd0, 0xef, 0xa4, 0x63, 0xdf, 0xbe, 0x3d, 0x11, 0x18, 0x1e, 0x1e, 0xc7, 0xda, 0x85 };
@ -167,9 +170,6 @@ typedef struct {
  float cal_a_factor;                               // 4 Bytes, Kalibrationsfaktor Waegezelle 1
  float cal_b_factor;                               // 4 Bytes, Kalibrationsfaktor Waegezelle 2
  byte debug_level;                                 // 0 => no debugging, no led, 1 => infos, no led, 2 => infos, 3 => error, 4 => highest level
-  uint8_t devEui[8];                                // keep OTAA settings so that new fw-updates does not overwrite it
-  uint8_t appEui[8];                                // dito
-  uint8_t appKey[16];                               // dito
 } __attribute__((packed)) CONFIG_data;

 typedef struct {
@ -225,8 +225,6 @@ bool stop_iterations = false;
 bool start_new_iteration = false;
 bool next_package_is_init_package = true;
 uint32_t gRebootMs;
-char last_channel = 'X';
-bool toobigweightchange = false;

 /******************************************************************************/
 /* Functions for Global Data Structures                                       */
@ -406,9 +404,6 @@ bool InitializeScales()
  result &= nau7802.setSampleRate(NAU7802_SPS_40); //Set samples per second to 40
  result &= nau7802.setRegister(NAU7802_ADC, 0x30); //Turn off CLK_CHP. From 9.1 power on sequencing.

-  // see https://github.com/sparkfun/SparkFun_Qwiic_Scale_NAU7802_Arduino_Library/issues/7
-  //result &= nau7802.clearBit(NAU7802_PGA_PWR_PGA_CAP_EN, NAU7802_PGA_PWR);
-
  return result;
 }

@ -451,22 +446,14 @@ long ReadScale(char channel)
    channelNumber = NAU7802_CHANNEL_2;
  }
  unsigned long startTime = millis();
-  if (channel != last_channel) {
-    last_channel = channel;
-    nau7802.setChannel(channelNumber);
-    bool calibrate_success = nau7802.calibrateAFE();
-    if (! calibrate_success) {
-      if (config_data.debug_level > 0) {
-        Serial.printf("Error: Calibration not successful!\n");
-      }
-    }
+  nau7802.setChannel(channelNumber);
+  bool calibrate_success = nau7802.calibrateAFE();
+  if (! calibrate_success) {
    if (config_data.debug_level > 0) {
-        Serial.printf("getChannel1Gain: %d\n", nau7802.getChannel1Gain());
-        Serial.printf("getChannel1Offset: %d\n", nau7802.getChannel1Offset());
-        Serial.printf("NAU7802_GCAL2_B3: %d\n", nau7802.get32BitRegister(NAU7802_GCAL2_B3));
-        Serial.printf("NAU7802_OCAL2_B2: %d\n", nau7802.get32BitRegister(NAU7802_OCAL2_B2));
+      Serial.printf("Error: Calibration not successful!\n");
    }
  }
+
  if (nau7802.available()) {
    long dummy = nau7802.getReading();
  }
@ -668,19 +655,6 @@ bool checkUserAt(char *cmd, char *content)
    return true;
  }

-  if (strcmp(cmd, "SAVE_OTAA_CONFIG") == 0)
-  {
-    if (content[0] == '1')
-    {
-      memcpy(config_data.devEui, devEui, sizeof(devEui));
-      memcpy(config_data.appEui, appEui, sizeof(appEui));
-      memcpy(config_data.appKey, appKey, sizeof(appKey));
-      WriteConfigDataToFlash();
-      Serial.printf("saved OTAA configuration to flash\n");
-    }
-    return true;
-  }
-
  if (strcmp(cmd, "READ_SENSORS") == 0)
  {
    if (content[0] == '?')
@ -693,7 +667,7 @@ bool checkUserAt(char *cmd, char *content)
      Serial.printf("  \"temperature\": \"%d\",\n", sensor_data.temperature);
      Serial.printf("  \"humidity\": \"%d\",\n", sensor_data.humidity);
      Serial.printf("  \"pressure\": \"%d\",\n", sensor_data.pressure);
-      Serial.printf("  \"vbat\": \"%d\"\n", sensor_data.vbat);
+      Serial.printf("  \"vbat\": \"%d\",\n", sensor_data.vbat);
      Serial.printf("}\n");
    }
    return true;
@ -789,10 +763,6 @@ void setup_platform(void)

  // read config_data from flash...
  ReadConfigDataFromFlash();
-  memcpy(devEui, config_data.devEui, sizeof(config_data.devEui));
-  memcpy(appEui, config_data.appEui, sizeof(config_data.appEui));
-  memcpy(appKey, config_data.appKey, sizeof(config_data.appKey));
-
  if (config_data.debug_level > 0) {
    Serial.printf("Setup_platform, this is the configuration\n");
    Serial.printf("cal_a_0: %d\n", config_data.cal_a_0);
@ -863,14 +833,12 @@ void AddSensorDataToLoraData()
    timer_pos0 = millis();
  }
  my_position++;
+
+  last_sensor_reading = sensor_data;
 }

 bool TooBigWeightChange()
 {
-  // on first position there cannot be a difference 
-  if (my_position == 1) {
-     return false;
-  }
  bool big_difference = (abs(last_sensor_reading.weight - sensor_data.weight) > SEND_DIFF_THRESHOLD_5GRAMS);
  if (big_difference) {
    lora_data.weight_last = sensor_data.weight;
@ -880,7 +848,6 @@ bool TooBigWeightChange()
    Serial.printf("TooBigWeightChange (my_position: %d): %d...\n", my_position, big_difference);
  }

-  toobigweightchange = big_difference;
  return big_difference;
 }

@ -923,8 +890,7 @@ bool ReadSensors(bool read_only)
  if (!read_only) {
    AddSensorDataToLoraData();
    send_data = (TooBigWeightChange()) || (my_position >= MAX_VALUES_TO_SEND) || (iteration <= INIT_PACKETS) || (iteration % INIT_PACKAGE_INTERVAL == 0);
-    last_sensor_reading = sensor_data;
- 
+
    if (config_data.debug_level > 0) {
      if (send_data) {
        Serial.printf("Iteration: %d, we send the data...\n", iteration);
@ -981,8 +947,6 @@ void loop()
    case DEVICE_STATE_SEND:
      {
        if (ReadSensors(false)) {
-          // we send confirmed packages when weight change is too big or for every init package
-          isTxConfirmed = (toobigweightchange) || (iteration <= INIT_PACKETS) || (iteration % INIT_PACKAGE_INTERVAL == 0);
          prepareTxFrame(appPort);
          LoRaWAN.send();
          package_counter++;
--- a/mini-beieli-provision-cubecell.go
+++ b/mini-beieli-provision-cubecell.go
@ -58,51 +58,6 @@ func readSerial(p *serial.Port) {
 	}
 }

-func getAppKey(deveui string) string {
-	if len(deveui) == 16 {
-		appkey := fmt.Sprintf("%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c",
-			deveui[10],
-			deveui[3],
-			deveui[4],
-			deveui[7],
-			deveui[15],
-			deveui[9],
-			deveui[11],
-			deveui[2],
-			deveui[0],
-			deveui[8],
-			deveui[1],
-			deveui[6],
-			deveui[5],
-			deveui[12],
-			deveui[14],
-			deveui[13],
-			deveui[3],
-			deveui[6],
-			deveui[12],
-			deveui[7],
-			deveui[15],
-			deveui[1],
-			deveui[9],
-			deveui[11],
-			deveui[2],
-			deveui[10],
-			deveui[0],
-			deveui[8],
-			deveui[5],
-			deveui[14],
-			deveui[4],
-			deveui[13])
-
-		fmt.Printf("calculated AppKey: %s\n", appkey)
-		return appkey
-
-	} else {
-		fmt.Printf("devEui has wrong length: %s\n", deveui)
-		return ""
-	}
-}
-
 func main() {
 	if len(os.Args) != 3 {
 		fmt.Println("usage: " + filepath.Base(os.Args[0]) + " <SerialDevice> <appEui>")
@ -120,12 +75,10 @@ func main() {

 	sendCommand(s, "AT+XXX")
 	devEui := getDevEui(s)
-	appKey := getAppKey(devEui)
 	if devEui != "" {
 		sendCommand(s, "AT+DevEui="+devEui)
 		sendCommand(s, "AT+AppEui="+appEui)
-		sendCommand(s, "AT+AppKey="+appKey)
-		sendCommand(s, "AT+SAVE_OTAA_CONFIG=1")
+		sendCommand(s, "AT+AppKey="+devEui+devEui)
 		sendCommand(s, "AT+RESET=1")
 		readSerial(s)
 	} else {