UM7 Binary Parser Arduino Library

[Michael Hoyer]

I made a simple arduino library to parse binary data from a UM7. It works well with the Arduino Due, but it should also work with an Arduino Mega.

https://github.com/mikehoyer/UM7-Arduino

Currently it only parses binary data packets from the UM7 for roll/pitch/yaw. I can add more functionality if anyone is interested in the project.

[Caleb Chamberlain]

Thanks for sharing! I’m sure that others will appreciate the availability of Arduino support for the UM7.

[Jesus Jara]

Please. Send me the skecth and conector with arduino due board.
I can not read data for serial port using the arduino due board.

Thanks for all.

[Michael Hoyer]

Configure the UM7 to send binary Euler angle packets at 115200 baud using the CH Robotics serial interface.

Serial Interface

Connect the RX pin on the UM7 to TX1 (pin 18) on the DUE
Connect the TX pin on the UM7 to RX1 (pin 19) on the DUE

That’s it! I’ll add these comments to the example sketch.

Thanks,
Mike

[Asad]

Thanks for sharing, actually i need to print data via serial to PC , i need (Roll and pitch angles,Yaw angle,Roll and pitch angle rates), you code works fine but when i add following statements, the Arduino Mega2560 doesnt send data to PC …

#include <UM7.h>

UM7 imu;

void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
Serial3.begin(115200);
}

void loop() {
// put your main code here, to run repeatedly:
// put your main codeo here, to run repeatedly:
if (Serial3.available() > 0) {
if (imu.encode(Serial3.read())) { // Reads byte from buffer. Valid packet returns true.
//roll, pitch, yaw, roll_rate, pitch_rate, yaw_rate;
Serial.print(“roll = “);
Serial.println(imu.roll);
Serial.print(“pitche = “);
Serial.println(imu.pitch);
Serial.print(“yaw = “);
Serial.println(imu.yaw);
Serial.print(“roll rate = “);
Serial.println(imu.roll_rate);
Serial.print(“pitche rate = “);
Serial.println(imu.pitch_rate);
Serial.print(“yaw rate = “);
Serial.println(imu.yaw_rate);
}
}
}

[Asad]

Thanks for sharing, actually i need to print data via serial to PC , i need (Roll and pitch angles,Yaw angle,Roll and pitch angle rates), you code works fine but when i add following statements, the Arduino Mega2560 doesnt send data to PC …

#include <UM7.h>

UM7 imu;

void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
Serial3.begin(115200);
}

void loop() {
// put your main code here, to run repeatedly:
// put your main codeo here, to run repeatedly:
if (Serial3.available() > 0) {
if (imu.encode(Serial3.read())) { // Reads byte from buffer. Valid packet returns true.
//roll, pitch, yaw, roll_rate, pitch_rate, yaw_rate;
Serial.print(“roll = “);
Serial.println(imu.roll);
Serial.print(“pitche = “);
Serial.println(imu.pitch);
Serial.print(“yaw = “);
Serial.println(imu.yaw);
Serial.print(“roll rate = “);
Serial.println(imu.roll_rate);
Serial.print(“pitche rate = “);
Serial.println(imu.pitch_rate);
Serial.print(“yaw rate = “);
Serial.println(imu.yaw_rate);
}
}
}

[Bob Cook]

Why not connect the UM7 directly to the PC? Just port the binary parser code to run on the PC, should be straight forward to get the same code running in C# or C++.

[Saddan Hernández Márquez]

Hi Mike, Do I need polling the UM7 to initiate a serial read of one or more registers (to tell the device that it will be a read operation), or the code is configured for only read of the incoming packets?

[Babar]

Helo sir. !
I purchased um7 lte orientation sensor. I have done the calibration of that sensor. Now i could not able to make code that how to receive roll,pitch,yaw values serialy in arduino due controller. Can you please help me . I have very limited time. Thanks.
Thanks.

[David]

Hi,

is it possible to change the library so i can get the data from the internal temperature Sensor?
Everything else works great.
Thanks for the library.

David

[osmancns]

Hello… I use um7 with arduino mega.

why I get this angle values. values not between -360 and 360. what is problem ?

yaw angle: 4214
roll angle: 16437
pitch angle: 777
yaw angle: 4225
roll angle: 16437
pitch angle: 780
yaw angle: 4226
roll angle: 16438
pitch angle: 783
yaw angle: 4228
roll angle: 16439
pitch angle: 786
yaw angle: 4237
roll angle: 16434
pitch angle: 792
yaw angle: 4236
roll angle: 16426

[osmancns]

update:

its here CHR Serial interface parameters :

View post on imgur.com

[Saddan hernandez]

Hi osmancns, I think you have to divide by a scale factor. I don’t remember what is its value (-91.222 or something like that), but you can find it in the datasheet. Good luck!

[osmancns]

thank you @Saddan hernandez now my problem solved by dividing with 91.02222.
But now I need to read gyro x,y,z values. How can ı do that with this code (https://github.com/mikehoyer/UM7-Arduino)
can you help me please ?

[Michael Hoyer]

@osmancns

I’ve made available

roll_rate, pitch_rate, yaw_rate

in the binary parser code. Is that what you mean by gyro x,y,z?

You just have to enable the UM7 to send the gyro rate data over binary for my code read it.

Let me know how it goes.

Thanks,
Mike

[Author]

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