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    Edge Impulse Inference to IoT Dashboard

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    • D
      dipu_varghese @dipu_varghese last edited by

      @salmanfaris Hope you're doing well, did you get sometime to work on this?

      Best,
      Dipu

      1 Reply Last reply Reply Quote 0
      • D
        dipu_varghese @salmanfaris last edited by

        @salmanfaris any updates?

        Best,
        Dipu

        salmanfaris 1 Reply Last reply Reply Quote 0
        • salmanfaris
          salmanfaris @dipu_varghese last edited by salmanfaris

          Hi @dipu_varghese ,

          Here is the sample input from the binary edge impulse inference,

          Predictions (DSP: 16 ms., Classification: 1 ms., Anomaly: 2 ms.):
          idle: 0.91016
          snake: 0.08203
          updown: 0.00391
          wave: 0.00391
          anomaly score: -0.067”
          

          And from here for example we can try to get the updown values only by attaching the device to another controller and read the Serial string directly.

          void setup() {
            // Start serial communication at 9600 baud
            Serial.begin(9600);
          }
          
          void loop() {
            // Wait until there is data available on the serial port
            while (!Serial.available()) {
              // Do nothing
            }
          
            // Read the input string from the serial port
            String inputString = Serial.readStringUntil('\n');
          
            // Find the position of the "updown" value in the input string
            int updownPos = inputString.indexOf("updown:");
          
            // If the "updown" value was found in the input string
            if (updownPos >= 0) {
              // Extract the "updown" value from the input string
              String updownString = inputString.substring(updownPos + 8, inputString.indexOf('\n', updownPos));
          
          // Convert the "updown" value to a float
              float updownValue = updownString.toFloat();
          
           // Output the "updown" value
              Serial.println(updownValue);
            }
          }
          

          The sketch should then output the "updown" value, which is 0.08203.

          Hope this will be helpful, let me know if you need more clarification.

          D 1 Reply Last reply Reply Quote 0
          • D
            dipu_varghese @salmanfaris last edited by

            @salmanfaris thank you so much man, I'll try this and update you shortly. Thank you once again.

            Best,
            Dipu

            salmanfaris 1 Reply Last reply Reply Quote 1
            • salmanfaris
              salmanfaris @dipu_varghese last edited by

              @dipu_varghese Hi, How does it go? Would like to know about the updates πŸ™‚ or anything I can do to help you.

              1 Reply Last reply Reply Quote 0
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              • @zainmuhammed Can try capturing the GPS when the device is starting the loop instead after joining the LoRaWAN and see?

                You can put the GPS value on top of the loop or setup function.

                Also, what kind of gateway are you using? Is it configured okay, OTA is done?

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              • @salmanfaris Today I tried after connecting a 18650 cell,
                WhatsApp Image 2024-04-12 at 10.40.06_c7d1947e.jpg WhatsApp Image 2024-04-12 at 10.40.05_897b8bb6.jpg
                Data getting in console after integration of both lora and gps.
                3f45cfe7-0061-4328-8c55-ef0a73385203-image.png
                here you can see that GPS value is 0,0. also in my previous post you can see that GPS value is not reading.
                Also the status LED is active after it is connected to the satellite.

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              • Hi @zainmuhammed ,

                Can you share the GPS and LoRa output when it’s working?

                Also can try capturing the GPS when the device is starting the loop instead after joining the LoRaWAN and see?

                Also make sure the device provides have enough to modules. The GPS need more power when you cold start.

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              • @zainmuhammed
                this is the code

                #include <Arduino.h> #include <U8x8lib.h> #include <TinyGPS++.h> #include <SoftwareSerial.h> static const int RXPin = 1, TXPin = 2; static const uint32_t GPSBaud = 9600; // The TinyGPS++ object TinyGPSPlus gps; // The serial connection to the GPS device SoftwareSerial ss(RXPin, TXPin); U8X8_SSD1306_128X64_NONAME_HW_I2C u8x8(/*reset=*/U8X8_PIN_NONE); // U8X8_SSD1306_128X64_NONAME_SW_I2C u8x8(/*clock=*/ SCL, /*data=*/ SDA, /*reset=*/ U8X8_PIN_NONE); // OLEDs without Reset of the Display static char recv_buf[512]; static bool is_exist = false; static bool is_join = false; static int led = 0; static int at_send_check_response(char *p_ack, int timeout_ms, char *p_cmd, ...) { int ch; int num = 0; int index = 0; int startMillis = 0; va_list args; char cmd_buffer[256]; // Adjust the buffer size as needed memset(recv_buf, 0, sizeof(recv_buf)); va_start(args, p_cmd); vsprintf(cmd_buffer, p_cmd, args); // Format the command string Serial1.print(cmd_buffer); Serial.print(cmd_buffer); va_end(args); delay(200); startMillis = millis(); if (p_ack == NULL) { return 0; } do { while (Serial1.available() > 0) { ch = Serial1.read(); recv_buf[index++] = ch; Serial.print((char)ch); delay(2); } if (strstr(recv_buf, p_ack) != NULL) { return 1; } } while (millis() - startMillis < timeout_ms); return 0; } static void recv_prase(char *p_msg) { if (p_msg == NULL) { return; } char *p_start = NULL; int data = 0; int rssi = 0; int snr = 0; p_start = strstr(p_msg, "RX"); if (p_start && (1 == sscanf(p_start, "RX: \"%d\"\r\n", &data))) { Serial.println(data); u8x8.setCursor(2, 4); u8x8.print("led :"); led = !!data; u8x8.print(led); if (led) { digitalWrite(LED_BUILTIN, LOW); } else { digitalWrite(LED_BUILTIN, HIGH); } } p_start = strstr(p_msg, "RSSI"); if (p_start && (1 == sscanf(p_start, "RSSI %d,", &rssi))) { u8x8.setCursor(0, 6); u8x8.print(" "); u8x8.setCursor(2, 6); u8x8.print("rssi:"); u8x8.print(rssi); } p_start = strstr(p_msg, "SNR"); if (p_start && (1 == sscanf(p_start, "SNR %d", &snr))) { u8x8.setCursor(0, 7); u8x8.print(" "); u8x8.setCursor(2, 7); u8x8.print("snr :"); u8x8.print(snr); } } void setup(void) { u8x8.begin(); u8x8.setFlipMode(1); u8x8.setFont(u8x8_font_chroma48medium8_r); ss.begin(GPSBaud); Serial.begin(GPSBaud); pinMode(LED_BUILTIN, OUTPUT); digitalWrite(LED_BUILTIN, HIGH); Serial1.begin(9600); Serial.print("E5 LORAWAN TEST\r\n"); u8x8.setCursor(0, 0); if (at_send_check_response("+AT: OK", 100, "AT\r\n")) { is_exist = true; at_send_check_response("+ID: DevEui", 1000, "AT+ID=DevEui,\"xxxxx\"\r\n"); // replace 'xxxxxxxxxxxxx' with your DevEui at_send_check_response("+ID: AppEui", 1000, "AT+ID=AppEui,\"xxxxxxx\"\r\n"); // replace 'xxxxxxxxxxxxx' with your AppEui at_send_check_response("+KEY: APPKEY", 1000, "AT+KEY=APPKEY,\"xxxxxxxxx\"\r\n"); // replace 'xxxxxxxxxxxxx' with your AppKey at_send_check_response("+ID: DevAddr", 1000, "AT+ID=DevAddr\r\n"); at_send_check_response("+ID: AppEui", 1000, "AT+ID\r\n"); at_send_check_response("+MODE: LWOTAA", 1000, "AT+MODE=LWOTAA\r\n"); at_send_check_response("+DR: IN865", 1000, "AT+DR=IN865\r\n"); // Change FREQ as per your location at_send_check_response("+CH: NUM", 1000, "AT+CH=NUM,0-2\r\n"); at_send_check_response("+CLASS: C", 1000, "AT+CLASS=A\r\n"); at_send_check_response("+PORT: 8", 1000, "AT+PORT=8\r\n"); delay(200); u8x8.setCursor(5, 0); u8x8.print("LoRaWAN"); is_join = true; } else { is_exist = false; Serial.print("No E5 module found.\r\n"); u8x8.setCursor(0, 1); u8x8.print("unfound E5 !"); } u8x8.setCursor(2, 4); u8x8.print("led :"); u8x8.print(led); } void loop(void) { if (is_exist) { int ret = 0; if (is_join) { ret = at_send_check_response("+JOIN: Network joined", 12000, "AT+JOIN\r\n"); if (ret) { is_join = false; } else { at_send_check_response("+ID: AppEui", 1000, "AT+ID\r\n"); Serial.print("JOIN failed!\r\n\r\n"); delay(5000); } } else { gps.encode(ss.read()); float a=gps.location.lat(); float b=gps.location.lng(); Serial.println(a); Serial.println(b); char cmd[128]; sprintf(cmd, "AT+CMSGHEX=\"%04X%04X\"\r\n", (float)a,(float)b); ret = at_send_check_response("Done", 5000, cmd); if (ret) { recv_prase(recv_buf); } else { Serial.print("Send failed!\r\n\r\n"); } delay(5000); } } else { delay(1000); } }

                9135d5d3-6277-4c60-81df-a2acac65c93d-image.png

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