Beware, magnets will interfere with the compass readings. Cmps10 tilt compensated compass module introduction the cmps10 module is a tilt compensated compass. Visit for more tutorials, tips, projects and how it works. The cmps14 module is the 5th generation tilt compensated compass from devantech. The cmps10 module is a true tilt compensated compass for a fraction of the price of competing modules. You will see heading calculations printed out to the serial monitor. This is a simple sketch to test out the hmc5883l based digital compass for potential inclusion in the rov project. The compass module cmps10 from robot electronics is capable of. Yet to address is the heading in 0 to 360 degrees instead of 180 to 180 degrees in the wrong direction. Open up file examples adafruit lsm303dlh mag compass and upload to your arduino wired up to the sensor. We will be using the cmps10 module which is a tilt compensated compass from robot. By now youve become familiar with both the hardware and software to use the hmc6343, the high end electronic compass. Arduino detect compass bearings using devantech cmps09cmps10. Arduino cmps10 example code cmps10 running i2c mode.
Finally register 22 is the command register and is used to calibrate the compass, change address and if necessary restore the factory default calibration. Using the hmc5883l 3axis compass module brainybits. Gy511 compass module has 8 pins, but you need only 4 of them to interface with arduino. Save time and energy by downloading the program code from robot arduino. Software version of cmps10 is read into data and then returned. Can you also display the software version, and the pitch, roll, and. Also i hope to add the necessary rotation matrix math that gives the compass heading in any chip orientation. The code store downloadable code examples for arduino robot. At present the rov pilot has only their own spacial sense and the video feed to determine where they are. Save time and energy by downloading the program code from robot arduino bonanza. Unlike similar modules which just give you the raw data, this little board incorporates a powerful 16bit processor which performs all the complex calculations to give an output of 0 to 359. There are two ways of getting the bearing from the module. Ive got a cmps10 compass module hooked up to my arduino due through a logic level converter. Save time and energy by downloading the program code from robot builders bonanza, fourth edition.
Example hookup how to connect the compass to the ubiquitous arduino so we can start writing code to work with it. Contribute to kragnizcmps10 development by creating an account on github. Magnetoresistive sensors work by the magnetoresistance property of a material. The dome arduino also controls the serial communications between itself and the ascom driver. Arduino nano, the compass, the accelerometer and the servo motor. This sketch will make sure the robot goes towards a certain direction. Connecting the compass module to the arduino analog outputs. The code store downloadable examples arduino robot bonanza. It can also be used as a simple compass to find the earths magnetic north. Employing a 3axis magnetometer and a 3axis accelerometer and a powerful 16bit processor, the cmps10 has been designed to remove the errors caused by tilting of the pcb. Sending gps and compass information to hardware serial on arduino pro mini with ublox gps and hmc5883l compass chip airbot ublox 2. The bottom pcb contained two 9v battery, each with its own switch.
Make your arduino walk and chew gum at the same time. The best arduino script example of compass calibration i could find was the. Introduction the cmps10 module is a tilt compensated compass. The hmc5883l 3axis compass module can measures magnetic fields in three directions. Using the pmod cmps2 with arduino uno arduino project hub. Cmps10 tilt compensated compass module devantech ltd. Dfrobot lcd keypad shield for arduino cmps10 tilt compensated compass module pololu jrk 21v3 usb motor controller with feedback some additonal boxes and wiring the problem as some people mentioned before is finding the right actuator to fit below deck. This contains the software version, the bearing information, and the. Employing a 3axis magnetometer and a 3axis accelerometer and a powerful 16bit processor. Hmc5883l digital compass on an arduino le mon 03 august 2015.
Iam looking for an actuator with a clutch and feedback, without any luck so far. Adafruit metro 328 fully assembled arduino ide compatible. A pwm signal is available on pin 4, or an i2c interface is provided on pins 2,3. Since i could not determine which software had done a better job by looking at the graphs, i took a hint from the scirus post and decided to run the postcalibration numbers from each application as input to both programs. All of the i2c stuff ive used have used the wire library on the arduino. Upload the sketch to your board and open up the serial monitor tools serial monitor at 115200 baud. I am writing code to convert the raw magnetometer readings into a bearing that i can use but have run into a huge problem. I am writing code to convert the raw magnetometer readings into a bearing that i can use but have run into. Employing a 3axis magnetometer, 3 axis gyro and a 3axis accelerometer and a powerful kalman filter, the cmps14 has been designed to remove the errors caused by tilting of the pcb.
Highest voted sensors questions page 4 arduino stack. You can communicate your nextion lcd with your arduino uno by software serial. Cmps11 tilt compensated magnetic compass robot electronics 3rd generation tilt compensated compass. The environment is written in java and based on processing and other opensource software. By using a software serial port, we can make the arduino do serial input and. The cmps12 is our 4th generation tilt compensated magnetic compass. The cmps10 produces a result of 03599 representing 0359. The compass module requires a 5v power supply at a nominal 25ma.
We will be using the cmps10 module which is a tilt compensated compass from robot electronics. This procedure finally produced reasonable compass heading values when the xy plane of the chip is level. Unpack the zip archive and move the folder to your arduino, picaxe, or basic. Diy flight instruments for horizon and compass hackster. The arduino will reevaulate the stepstogo several times during the slew so the dome lands in the right place. Robot compass the robot has an onboard compass module, with which it can tell the direction the robot is facing. A step by step tutorial for visualising the motion of an mpu6050 motion sensor in the form of artificial flight instruments. This article talks about the considerations for mounting a i2c electronic compass on your raspberry pi or arduino project. Cmps11 tilt compensated compass module replaced by cmps12 the cmps11 module is a true tilt compensated compass for a fraction of the price of competing modules. I mounted the compass module to a small breadboard so that i could move it around independent of the rest of the setup. How to make a compass using arduino and processing ide. The pin labeled vin connects to the 5v output on the arduino, scl. The compass module consists of an hmc5883l threeaxis cartesian axes x, y and z magnetic field chip which consists of 3 magnetoresistive sensors arranged in axes perpendicular to each other. A dead zone of 1 or 2 degrees ensures that noise from the compass doesnt make the dome constantly shuffle back and forth.
Lsm9ds1 a 9 degree of freedom inertial navigation chip. In my experience all the i2c stuff is handled by the arduino or other microcontroller, then you send the data to the computer via serialusb, or whatever other options the computer and the arduino can speak. Cmps11 tilt compensated compass module devantech ltd. This sensor uses a 3axis magnetometer and a 3axis accelerometer and a 16bit processor to measure the x, y and z components of the magnetic field. Software version of cmps10 is read into data and then returned wire. This module communicates with arduino using i2c protocol, so connect the sda i2c output and sck i2c clock input pins of the module to the i2c pins on the arduino board. Ive uploaded my code to github with some sample code on how to use the cmps10 compass with a windows 10 uwp app and the raspberry pi 3. The opensource arduino software ide makes it easy to write code and upload it to the board. The code store code examples robot builders bonanza, fourth edition. Values of 0 being sent with write need to be masked as a byte so they are not misinterpreted as null this is a bug in arduino 1. If you rotate the sensor as it runs you can see the heading.
Copy the above sketch code in your arduino ide software to program your arduino. Please refer to the text of the book for more information on using the program code, including hardware connections and external circuitry. In this arduino project we will see how we can make this cool looking compass using an arduino, a mems magnetometer and the processing ide. The cmps10 is a compass, accelerometer and a microcontroller on a. Calibration the cmps10 i would recommend evaluating the cmps10 performance first before implementing this function.