Connecting two GY 87 sensors to Arduino Wemos D1 The 2019 Stack Overflow Developer Survey...
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Connecting two GY 87 sensors to Arduino Wemos D1
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I want to connect two gy 87 sensors to Arduino Wemos D1.
My sensor connections, as far as I know, should be as follows:
Sensor 1 ---> Arduino
SCL ----> SCL
SDA ----> SDA
GND ----> GND
VCC ----> 5v
Sensor 2 ---> Arduino
SCL ----> SCL
SDA ----> SDA
GND ----> GND
3.3v ----> 5v or GND
Here 3.3v acts as an AD0, not sure though.
Here is the code that I am using:-
Sensor 1 is reading fine, but sensor two gives all -1's.
Where did I go wrong?
#include<Wire.h>
const int MPU2=0x69,MPU1=0x68;
int16_t AcX1,AcY1,AcZ1,Tmp1,GyX1,GyY1,GyZ1;
int16_t AcX2,AcY2,AcZ2,Tmp2,GyX2,GyY2,GyZ2;
//-------------------------------------------------setup loop-------------
void setup(){
Wire.begin();
Wire.beginTransmission(MPU1);
Wire.write(0x6B);// PWR_MGMT_1 register
Wire.write(0); // set to zero (wakes up the MPU-6050)
Wire.endTransmission(true);Wire.begin();
Wire.beginTransmission(MPU2);
Wire.write(0x6B);// PWR_MGMT_1 register
Wire.write(0); // set to zero (wakes up the MPU-6050)
Wire.endTransmission(true);
Serial.begin(9600);
}
//---------------------------------------------------void loop-----------
void loop(){
//get values for first mpu having address of 0x68
GetMpuValue1(MPU1);
Serial.print(" ");
Serial.print("||| ");
//get values for second mpu having address of 0x69
GetMpuValue2(MPU2);
Serial.println("");
}
//----------------------------------------------user defined functions----
void GetMpuValue1(const int MPU){
Wire.beginTransmission(MPU);
Wire.write(0x3B); // starting with register 0x3B (ACCEL_XOUT_H)
Wire.endTransmission(false);
Wire.requestFrom(MPU, 14, true); // request a total of 14 registers
AcX1=Wire.read()<<8| Wire.read(); // 0x3B (ACCEL_XOUT_H) & 0x3C
(ACCEL_XOUT_L)
AcY1=Wire.read()<<8| Wire.read(); // 0x3D (ACCEL_YOUT_H) & 0x3E
(ACCEL_YOUT_L)
AcZ1=Wire.read()<<8| Wire.read(); // 0x3F (ACCEL_ZOUT_H) & 0x40
(ACCEL_ZOUT_L)
Tmp1=Wire.read()<<8| Wire.read(); // 0x41 (TEMP_OUT_H) & 0x42 (TEMP_OUT_L)
GyX1=Wire.read()<<8| Wire.read(); // 0x43 (GYRO_XOUT_H) & 0x44
(GYRO_XOUT_L)
GyY1=Wire.read()<<8| Wire.read(); // 0x45 (GYRO_YOUT_H) & 0x46
(GYRO_YOUT_L)
GyZ1=Wire.read()<<8| Wire.read(); // 0x47 (GYRO_ZOUT_H) & 0x48
(GYRO_ZOUT_L)
Serial.print("AcX1 = ");
Serial.print(AcX1);
Serial.print(" | AcY1 = ");
Serial.print(AcY1);
Serial.print(" | AcZ1 = ");
Serial.print(AcZ1);
Serial.print(" | GyX1 = ");
Serial.print(GyX1);
Serial.print(" | GyY1 = ");
Serial.print(GyY1);
Serial.print(" | GyZ1 = ");
Serial.println(GyZ1);
}
void GetMpuValue2(const int MPU){
Wire.beginTransmission(MPU);
Wire.write(0x3B); // starting with register 0x3B (ACCEL_XOUT_H)
Wire.endTransmission(false);
Wire.requestFrom(MPU, 14, true); // request a total of 14 registers
AcX2=Wire.read()<<8| Wire.read(); // 0x3B (ACCEL_XOUT_H) & 0x3C
(ACCEL_XOUT_L)
AcY2=Wire.read()<<8| Wire.read(); // 0x3D (ACCEL_YOUT_H) & 0x3E
(ACCEL_YOUT_L)
AcZ2=Wire.read()<<8| Wire.read(); // 0x3F (ACCEL_ZOUT_H) & 0x40
(ACCEL_ZOUT_L)
Tmp2=Wire.read()<<8| Wire.read(); // 0x41 (TEMP_OUT_H) & 0x42 (TEMP_OUT_L)
GyX2=Wire.read()<<8| Wire.read(); // 0x43 (GYRO_XOUT_H) & 0x44
(GYRO_XOUT_L)
GyY2=Wire.read()<<8| Wire.read(); // 0x45 (GYRO_YOUT_H) & 0x46
(GYRO_YOUT_L)
GyZ2=Wire.read()<<8| Wire.read(); // 0x47 (GYRO_ZOUT_H) & 0x48
(GYRO_ZOUT_L)
Serial.print("AcX2 = ");
Serial.print(AcX2);
Serial.print(" | AcY2 = ");
Serial.print(AcY2);
Serial.print(" | AcZ2 = ");
Serial.print(AcZ2);
Serial.print(" | GyX2 = ");
Serial.print(GyX2);
Serial.print(" | GyY2 = ");
Serial.print(GyY2);
Serial.print(" | GyZ2 = ");
Serial.println(GyZ2);
}
arduino
New contributor
add a comment |
I want to connect two gy 87 sensors to Arduino Wemos D1.
My sensor connections, as far as I know, should be as follows:
Sensor 1 ---> Arduino
SCL ----> SCL
SDA ----> SDA
GND ----> GND
VCC ----> 5v
Sensor 2 ---> Arduino
SCL ----> SCL
SDA ----> SDA
GND ----> GND
3.3v ----> 5v or GND
Here 3.3v acts as an AD0, not sure though.
Here is the code that I am using:-
Sensor 1 is reading fine, but sensor two gives all -1's.
Where did I go wrong?
#include<Wire.h>
const int MPU2=0x69,MPU1=0x68;
int16_t AcX1,AcY1,AcZ1,Tmp1,GyX1,GyY1,GyZ1;
int16_t AcX2,AcY2,AcZ2,Tmp2,GyX2,GyY2,GyZ2;
//-------------------------------------------------setup loop-------------
void setup(){
Wire.begin();
Wire.beginTransmission(MPU1);
Wire.write(0x6B);// PWR_MGMT_1 register
Wire.write(0); // set to zero (wakes up the MPU-6050)
Wire.endTransmission(true);Wire.begin();
Wire.beginTransmission(MPU2);
Wire.write(0x6B);// PWR_MGMT_1 register
Wire.write(0); // set to zero (wakes up the MPU-6050)
Wire.endTransmission(true);
Serial.begin(9600);
}
//---------------------------------------------------void loop-----------
void loop(){
//get values for first mpu having address of 0x68
GetMpuValue1(MPU1);
Serial.print(" ");
Serial.print("||| ");
//get values for second mpu having address of 0x69
GetMpuValue2(MPU2);
Serial.println("");
}
//----------------------------------------------user defined functions----
void GetMpuValue1(const int MPU){
Wire.beginTransmission(MPU);
Wire.write(0x3B); // starting with register 0x3B (ACCEL_XOUT_H)
Wire.endTransmission(false);
Wire.requestFrom(MPU, 14, true); // request a total of 14 registers
AcX1=Wire.read()<<8| Wire.read(); // 0x3B (ACCEL_XOUT_H) & 0x3C
(ACCEL_XOUT_L)
AcY1=Wire.read()<<8| Wire.read(); // 0x3D (ACCEL_YOUT_H) & 0x3E
(ACCEL_YOUT_L)
AcZ1=Wire.read()<<8| Wire.read(); // 0x3F (ACCEL_ZOUT_H) & 0x40
(ACCEL_ZOUT_L)
Tmp1=Wire.read()<<8| Wire.read(); // 0x41 (TEMP_OUT_H) & 0x42 (TEMP_OUT_L)
GyX1=Wire.read()<<8| Wire.read(); // 0x43 (GYRO_XOUT_H) & 0x44
(GYRO_XOUT_L)
GyY1=Wire.read()<<8| Wire.read(); // 0x45 (GYRO_YOUT_H) & 0x46
(GYRO_YOUT_L)
GyZ1=Wire.read()<<8| Wire.read(); // 0x47 (GYRO_ZOUT_H) & 0x48
(GYRO_ZOUT_L)
Serial.print("AcX1 = ");
Serial.print(AcX1);
Serial.print(" | AcY1 = ");
Serial.print(AcY1);
Serial.print(" | AcZ1 = ");
Serial.print(AcZ1);
Serial.print(" | GyX1 = ");
Serial.print(GyX1);
Serial.print(" | GyY1 = ");
Serial.print(GyY1);
Serial.print(" | GyZ1 = ");
Serial.println(GyZ1);
}
void GetMpuValue2(const int MPU){
Wire.beginTransmission(MPU);
Wire.write(0x3B); // starting with register 0x3B (ACCEL_XOUT_H)
Wire.endTransmission(false);
Wire.requestFrom(MPU, 14, true); // request a total of 14 registers
AcX2=Wire.read()<<8| Wire.read(); // 0x3B (ACCEL_XOUT_H) & 0x3C
(ACCEL_XOUT_L)
AcY2=Wire.read()<<8| Wire.read(); // 0x3D (ACCEL_YOUT_H) & 0x3E
(ACCEL_YOUT_L)
AcZ2=Wire.read()<<8| Wire.read(); // 0x3F (ACCEL_ZOUT_H) & 0x40
(ACCEL_ZOUT_L)
Tmp2=Wire.read()<<8| Wire.read(); // 0x41 (TEMP_OUT_H) & 0x42 (TEMP_OUT_L)
GyX2=Wire.read()<<8| Wire.read(); // 0x43 (GYRO_XOUT_H) & 0x44
(GYRO_XOUT_L)
GyY2=Wire.read()<<8| Wire.read(); // 0x45 (GYRO_YOUT_H) & 0x46
(GYRO_YOUT_L)
GyZ2=Wire.read()<<8| Wire.read(); // 0x47 (GYRO_ZOUT_H) & 0x48
(GYRO_ZOUT_L)
Serial.print("AcX2 = ");
Serial.print(AcX2);
Serial.print(" | AcY2 = ");
Serial.print(AcY2);
Serial.print(" | AcZ2 = ");
Serial.print(AcZ2);
Serial.print(" | GyX2 = ");
Serial.print(GyX2);
Serial.print(" | GyY2 = ");
Serial.print(GyY2);
Serial.print(" | GyZ2 = ");
Serial.println(GyZ2);
}
arduino
New contributor
add a comment |
I want to connect two gy 87 sensors to Arduino Wemos D1.
My sensor connections, as far as I know, should be as follows:
Sensor 1 ---> Arduino
SCL ----> SCL
SDA ----> SDA
GND ----> GND
VCC ----> 5v
Sensor 2 ---> Arduino
SCL ----> SCL
SDA ----> SDA
GND ----> GND
3.3v ----> 5v or GND
Here 3.3v acts as an AD0, not sure though.
Here is the code that I am using:-
Sensor 1 is reading fine, but sensor two gives all -1's.
Where did I go wrong?
#include<Wire.h>
const int MPU2=0x69,MPU1=0x68;
int16_t AcX1,AcY1,AcZ1,Tmp1,GyX1,GyY1,GyZ1;
int16_t AcX2,AcY2,AcZ2,Tmp2,GyX2,GyY2,GyZ2;
//-------------------------------------------------setup loop-------------
void setup(){
Wire.begin();
Wire.beginTransmission(MPU1);
Wire.write(0x6B);// PWR_MGMT_1 register
Wire.write(0); // set to zero (wakes up the MPU-6050)
Wire.endTransmission(true);Wire.begin();
Wire.beginTransmission(MPU2);
Wire.write(0x6B);// PWR_MGMT_1 register
Wire.write(0); // set to zero (wakes up the MPU-6050)
Wire.endTransmission(true);
Serial.begin(9600);
}
//---------------------------------------------------void loop-----------
void loop(){
//get values for first mpu having address of 0x68
GetMpuValue1(MPU1);
Serial.print(" ");
Serial.print("||| ");
//get values for second mpu having address of 0x69
GetMpuValue2(MPU2);
Serial.println("");
}
//----------------------------------------------user defined functions----
void GetMpuValue1(const int MPU){
Wire.beginTransmission(MPU);
Wire.write(0x3B); // starting with register 0x3B (ACCEL_XOUT_H)
Wire.endTransmission(false);
Wire.requestFrom(MPU, 14, true); // request a total of 14 registers
AcX1=Wire.read()<<8| Wire.read(); // 0x3B (ACCEL_XOUT_H) & 0x3C
(ACCEL_XOUT_L)
AcY1=Wire.read()<<8| Wire.read(); // 0x3D (ACCEL_YOUT_H) & 0x3E
(ACCEL_YOUT_L)
AcZ1=Wire.read()<<8| Wire.read(); // 0x3F (ACCEL_ZOUT_H) & 0x40
(ACCEL_ZOUT_L)
Tmp1=Wire.read()<<8| Wire.read(); // 0x41 (TEMP_OUT_H) & 0x42 (TEMP_OUT_L)
GyX1=Wire.read()<<8| Wire.read(); // 0x43 (GYRO_XOUT_H) & 0x44
(GYRO_XOUT_L)
GyY1=Wire.read()<<8| Wire.read(); // 0x45 (GYRO_YOUT_H) & 0x46
(GYRO_YOUT_L)
GyZ1=Wire.read()<<8| Wire.read(); // 0x47 (GYRO_ZOUT_H) & 0x48
(GYRO_ZOUT_L)
Serial.print("AcX1 = ");
Serial.print(AcX1);
Serial.print(" | AcY1 = ");
Serial.print(AcY1);
Serial.print(" | AcZ1 = ");
Serial.print(AcZ1);
Serial.print(" | GyX1 = ");
Serial.print(GyX1);
Serial.print(" | GyY1 = ");
Serial.print(GyY1);
Serial.print(" | GyZ1 = ");
Serial.println(GyZ1);
}
void GetMpuValue2(const int MPU){
Wire.beginTransmission(MPU);
Wire.write(0x3B); // starting with register 0x3B (ACCEL_XOUT_H)
Wire.endTransmission(false);
Wire.requestFrom(MPU, 14, true); // request a total of 14 registers
AcX2=Wire.read()<<8| Wire.read(); // 0x3B (ACCEL_XOUT_H) & 0x3C
(ACCEL_XOUT_L)
AcY2=Wire.read()<<8| Wire.read(); // 0x3D (ACCEL_YOUT_H) & 0x3E
(ACCEL_YOUT_L)
AcZ2=Wire.read()<<8| Wire.read(); // 0x3F (ACCEL_ZOUT_H) & 0x40
(ACCEL_ZOUT_L)
Tmp2=Wire.read()<<8| Wire.read(); // 0x41 (TEMP_OUT_H) & 0x42 (TEMP_OUT_L)
GyX2=Wire.read()<<8| Wire.read(); // 0x43 (GYRO_XOUT_H) & 0x44
(GYRO_XOUT_L)
GyY2=Wire.read()<<8| Wire.read(); // 0x45 (GYRO_YOUT_H) & 0x46
(GYRO_YOUT_L)
GyZ2=Wire.read()<<8| Wire.read(); // 0x47 (GYRO_ZOUT_H) & 0x48
(GYRO_ZOUT_L)
Serial.print("AcX2 = ");
Serial.print(AcX2);
Serial.print(" | AcY2 = ");
Serial.print(AcY2);
Serial.print(" | AcZ2 = ");
Serial.print(AcZ2);
Serial.print(" | GyX2 = ");
Serial.print(GyX2);
Serial.print(" | GyY2 = ");
Serial.print(GyY2);
Serial.print(" | GyZ2 = ");
Serial.println(GyZ2);
}
arduino
New contributor
I want to connect two gy 87 sensors to Arduino Wemos D1.
My sensor connections, as far as I know, should be as follows:
Sensor 1 ---> Arduino
SCL ----> SCL
SDA ----> SDA
GND ----> GND
VCC ----> 5v
Sensor 2 ---> Arduino
SCL ----> SCL
SDA ----> SDA
GND ----> GND
3.3v ----> 5v or GND
Here 3.3v acts as an AD0, not sure though.
Here is the code that I am using:-
Sensor 1 is reading fine, but sensor two gives all -1's.
Where did I go wrong?
#include<Wire.h>
const int MPU2=0x69,MPU1=0x68;
int16_t AcX1,AcY1,AcZ1,Tmp1,GyX1,GyY1,GyZ1;
int16_t AcX2,AcY2,AcZ2,Tmp2,GyX2,GyY2,GyZ2;
//-------------------------------------------------setup loop-------------
void setup(){
Wire.begin();
Wire.beginTransmission(MPU1);
Wire.write(0x6B);// PWR_MGMT_1 register
Wire.write(0); // set to zero (wakes up the MPU-6050)
Wire.endTransmission(true);Wire.begin();
Wire.beginTransmission(MPU2);
Wire.write(0x6B);// PWR_MGMT_1 register
Wire.write(0); // set to zero (wakes up the MPU-6050)
Wire.endTransmission(true);
Serial.begin(9600);
}
//---------------------------------------------------void loop-----------
void loop(){
//get values for first mpu having address of 0x68
GetMpuValue1(MPU1);
Serial.print(" ");
Serial.print("||| ");
//get values for second mpu having address of 0x69
GetMpuValue2(MPU2);
Serial.println("");
}
//----------------------------------------------user defined functions----
void GetMpuValue1(const int MPU){
Wire.beginTransmission(MPU);
Wire.write(0x3B); // starting with register 0x3B (ACCEL_XOUT_H)
Wire.endTransmission(false);
Wire.requestFrom(MPU, 14, true); // request a total of 14 registers
AcX1=Wire.read()<<8| Wire.read(); // 0x3B (ACCEL_XOUT_H) & 0x3C
(ACCEL_XOUT_L)
AcY1=Wire.read()<<8| Wire.read(); // 0x3D (ACCEL_YOUT_H) & 0x3E
(ACCEL_YOUT_L)
AcZ1=Wire.read()<<8| Wire.read(); // 0x3F (ACCEL_ZOUT_H) & 0x40
(ACCEL_ZOUT_L)
Tmp1=Wire.read()<<8| Wire.read(); // 0x41 (TEMP_OUT_H) & 0x42 (TEMP_OUT_L)
GyX1=Wire.read()<<8| Wire.read(); // 0x43 (GYRO_XOUT_H) & 0x44
(GYRO_XOUT_L)
GyY1=Wire.read()<<8| Wire.read(); // 0x45 (GYRO_YOUT_H) & 0x46
(GYRO_YOUT_L)
GyZ1=Wire.read()<<8| Wire.read(); // 0x47 (GYRO_ZOUT_H) & 0x48
(GYRO_ZOUT_L)
Serial.print("AcX1 = ");
Serial.print(AcX1);
Serial.print(" | AcY1 = ");
Serial.print(AcY1);
Serial.print(" | AcZ1 = ");
Serial.print(AcZ1);
Serial.print(" | GyX1 = ");
Serial.print(GyX1);
Serial.print(" | GyY1 = ");
Serial.print(GyY1);
Serial.print(" | GyZ1 = ");
Serial.println(GyZ1);
}
void GetMpuValue2(const int MPU){
Wire.beginTransmission(MPU);
Wire.write(0x3B); // starting with register 0x3B (ACCEL_XOUT_H)
Wire.endTransmission(false);
Wire.requestFrom(MPU, 14, true); // request a total of 14 registers
AcX2=Wire.read()<<8| Wire.read(); // 0x3B (ACCEL_XOUT_H) & 0x3C
(ACCEL_XOUT_L)
AcY2=Wire.read()<<8| Wire.read(); // 0x3D (ACCEL_YOUT_H) & 0x3E
(ACCEL_YOUT_L)
AcZ2=Wire.read()<<8| Wire.read(); // 0x3F (ACCEL_ZOUT_H) & 0x40
(ACCEL_ZOUT_L)
Tmp2=Wire.read()<<8| Wire.read(); // 0x41 (TEMP_OUT_H) & 0x42 (TEMP_OUT_L)
GyX2=Wire.read()<<8| Wire.read(); // 0x43 (GYRO_XOUT_H) & 0x44
(GYRO_XOUT_L)
GyY2=Wire.read()<<8| Wire.read(); // 0x45 (GYRO_YOUT_H) & 0x46
(GYRO_YOUT_L)
GyZ2=Wire.read()<<8| Wire.read(); // 0x47 (GYRO_ZOUT_H) & 0x48
(GYRO_ZOUT_L)
Serial.print("AcX2 = ");
Serial.print(AcX2);
Serial.print(" | AcY2 = ");
Serial.print(AcY2);
Serial.print(" | AcZ2 = ");
Serial.print(AcZ2);
Serial.print(" | GyX2 = ");
Serial.print(GyX2);
Serial.print(" | GyY2 = ");
Serial.print(GyY2);
Serial.print(" | GyZ2 = ");
Serial.println(GyZ2);
}
arduino
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Yasmine Mustafa is a new contributor. Be nice, and check out our Code of Conduct.
Yasmine Mustafa is a new contributor. Be nice, and check out our Code of Conduct.
Yasmine Mustafa is a new contributor. Be nice, and check out our Code of Conduct.
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StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
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Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown