PiicoDev LIS3DH not working
I am using the I2C communication protocol to communicate between my uno r3 and the piccodev LIS3DH. I’m also using a logic level shifter to switch between the 5V of the arduino and the 3.3V that the LIS3DH runs on. When I tried to get acceleration values, it didn’t work, then I tried an I2C scanner and it said No I2C devices were found. Anyone know how I can fix this issue? Another thing I should add is that while checking the voltage that the sda and cam pin was at it showed 3.3V.
Here is my wiring:
Arduino UNO: Logic shifter: LIS3DH.:
A4. B3. SDA
A5. B2. SCL
GND. GND
5V HV.
3.3V LV
3.3V VCC
Here is the i2c scanner code: (I just copy and pasted it from the internet and i’m not sure if I need any adjustment)
#include <Wire.h>
#define WIRE Wire
void setup() {
WIRE.begin();
Serial.begin(9600);
while (!Serial)
delay(10);
Serial.println("\nI2C Scanner");
}
void loop() {
byte error, address;
int nDevices;
Serial.println("Scanning...");
nDevices = 0;
for(address = 1; address < 127; address++ )
{
// The i2c_scanner uses the return value of
// the Write.endTransmisstion to see if
// a device did acknowledge to the address.
WIRE.beginTransmission(address);
error = WIRE.endTransmission();
if (error == 0)
{
Serial.print("I2C device found at address 0x");
if (address<16)
Serial.print("0");
Serial.print(address,HEX);
Serial.println(" !");
nDevices++;
}
else if (error==4)
{
Serial.print("Unknown error at address 0x");
if (address<16)
Serial.print("0");
Serial.println(address,HEX);
}
}
if (nDevices == 0)
Serial.println("No I2C devices found\n");
else
Serial.println("done\n");
delay(5000); // wait 5 seconds for next scan
}
