Connecting a Huskylens2 to my Arduino uno doesn't work

Official Hardware UNO Family UNO R4 WiFi
1

I'm trying to connect to my HuskyLens2 to my Arduino uno r4 wifi. Since the arduino is female and only accepts male and the HuskyLens is the same, I using a male-to-male cable as an adapter to connect them two.
Here is my I2C scan script:

#include <Wire.h>

void setup() {
  Wire.begin();
  Serial.begin(115200);
  Serial.println("Scanning...");
}

void loop() {
  byte error;

  Wire.beginTransmission(0x50);
  error = Wire.endTransmission();

  if (error == 0)
    Serial.println("HuskyLens found at 0x50");
  else
    Serial.println("HuskyLens NOT found at 0x50");

  delay(1000);
}

It prints "HuskyLens found at 0x50" so I know it connects (Unless it should connect to 0x32, but im guessing that 0x50 is 0x32 in decimal form)
However when I run the following I get:
"Begin failed!
1.Please recheck the "Protocol Type" in HUSKYLENS (General Settings>>Protocol Type>>I2C)
2.Please recheck the connection."

#include "HUSKYLENS.h"

HUSKYLENS huskylens;

void setup() {
    Serial.begin(115200);
    Wire.begin();
    while (!huskylens.begin(Wire))
    {
        Serial.println(F("Begin failed!"));
        Serial.println(F("1.Please recheck the \"Protocol Type\" in HUSKYLENS (General Settings>>Protocol Type>>I2C)"));
        Serial.println(F("2.Please recheck the connection."));
        delay(100);
    }
}

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2

I don’t have a HuskyLens 2 (I have the older ones), but one thing to note is that “x50” is indeed hexadecimal, not decimal - that's what the “0x” part indicates.

I suggest you run a simple I2C port scan to see which address your HuskyLens actually uses.

3

I ran this script;

#include <Wire.h>

void setup() {
  Wire.begin();
  Serial.begin(115200);
  while (!Serial);
  Serial.println("Scanning I2C bus...");
}

void loop() {
  for (byte address = 1; address < 127; address++) {
    Wire.beginTransmission(address);
    byte error = Wire.endTransmission();

    if (error == 0) {
      Serial.print("Device found at 0x");
      Serial.println(address, HEX);
    }
  }

  Serial.println("Scan complete.\n");
  delay(3000);
}

and got:
Device found at 0x1
Device found at 0x2
Device found at 0x3
Device found at 0x4
Device found at 0x5
and more ...

So a device is found at every location. Where can I go from this?

5

Disconnect all I2C devices (maybe all devices) so no "device found" should return, and run your code again.

This is the I2C scan sketch I use...

#include <Wire.h>
int address, deviceFound,  error;

void setup() {
  Wire.begin();
  Serial.begin(115200);
  Serial.print("I2C bus device addresses:");

  for (address = 0; address < 128; address++ )  {
    Wire.beginTransmission(address);
    if (!Wire.endTransmission()) {
      showHex(address);
      deviceFound++;
    }
    else if (error == 4) {
      Serial.print(" Error at");
      showHex(address);
    }
  }
  if (!deviceFound)
    Serial.println(" No I2C devices found.");
}

void loop() {}

void showHex(int hex) {
  Serial.print(" 0x");
  if (hex < 0x10)
    Serial.print(0);
  Serial.print(hex, HEX);
}
6

I ended up switching to an espressif esp32-s3 dev module and it's working fine.
However can I use the #include <Wire.h> library or is it only for arduino? Do I have to use the #include <esp_wifi.h> library?
Thank you in advance

7

I think Wire.h supports ESP32, but declare the I2C bus pins you define, like...

  Wire.begin(I2C_SDA, I2C_SCL);

Sounds like a bad connection(s).