For more information, see Workaround for Interrupt Workflow with SensorsĤ. The sei() function is included only for AVR targets and not the ARM targets. The sei() is added to the model using the System Output block. In AVR targets, for the I2C calls to work from within ISR, place the sei() inside the ISR. Verify that the LIS3DH sensor block is placed in the Initialize Function subsystem.ģ. For more information on working with External Interrupts, see External Interrupts Workflow for Arduino.Ģ. It is available in a 100-pin Quad Flat Package. For example, if you connect INT1 to another pin that supports External Interrupt on the Arduino board.

If you have connected the Arduino pin to a different pin on the sensor, change the pin number in this parameter. In the Single click interrupt from LIS3DH area of the model, open the External Interrupt block, to verify that the value of Pin number parameter is set to 3, which is same as the Arduino pin that is connected to INT1 pin on LIS3DH sensor. The ATmega1280 and ATmega2560 have four pins that have this feature, but none of them are connected to Arduino headers Evidentally, the designers of the. Configure the Click Detection on LIS3DH for Interrupt Service Routine (ISR)ġ. In Hardware Implementation pane, under Hardware board, select the Arduino board that you are using.ģ. It appears to be a mapping problem in that the Mega ports are different. Using pin change interrupts works fine with the uno board but unsuccessful with Mega. In the Simulink model, navigate to Modeling > Model Settings to open the Configuration Parameters dialog box.ģ. I am trying to get 2 encoders to work with a Mega 2560 board.

If you are using a different Arduino board, change the hardware board by performing the following steps:ġ. The model is preconfigured to work with the Arduino Mega 2560 board.

Arduino mega 2560 pin interrupt pins