Hello,
I recently purchased the MPU6050 Accelermoteter IMU sensor and would like to use it along with my BotBoarduino.
Currently, I have an I/O Expansion Shield connected to my BotBoarduino, and I am communicating to the board via an XBee on the I/O Sheild.
What pins on the IMU sensor would I have to connect to the I/O shield and where? I was able to find the 5V, GND, SDA, and SCL pins on the I/O shield, but I have yet to find where the INT pin is on the I/O shield.
Let me know if you have any questions, and thanks in advance!
Best,
Christopher
Hi Christopher,
I don’t have complete answers for you, but I can probably help.
The GND, Vcc, SDA, and SCL lines must be connected. Make sure the Vcc voltages are the same (If the IMU requires 3.3V DON’T connect it to a 5V supply.) You will have to check the documents on both parts. With that single warning, those four lines should connect directly to their counterparts between the IMU and the IOShield.
The INT (interrupt) pin may not be necessary at all. It largely depends on the software you are using. Normally all the communication between the Arduino and the IMU is done over the I2C bus (the SDA and SCL pins.) The INT pin allows the IMU to tell the Arduino it has some new data to send. Using it, the Arduino wouldn’t have to ask all the time. Whether it is used or not depends entirely on the software you use. Are you writing the software yourself or are you using code from someone else to use the IMU?
An Arduno doesn’t normally have any pins labelled “INT.” They do have pins which can be used as an interrupt and which ones varied between the different versions of Arduino. Any software you use, whether you write it or get it somewhere, should determine which of those pins is needed if any.
Please let us know what software you are using, if you are writing it or downloading it. A link will be helpful. If you use someone else’s software it should specify which Arduino pin to use for interrupts if needed and you can find which pin on the IMU shield is connected to that Arduino pin.
I hope this helps. If you have any difficulties or any more questions please ask.
