Arduino Library for Makeblock Electronic Modules

The original library from Makeblock is not maintained anymore. I have a fleet of Makeblock Ranger robots and I needed to fix some issues with the library. I will try to keep it up to date with the original library.

Feel free to open an issue if you have any problem with the library or create a pull request if you have a fix.

In makeblock's library, some of the modules are derived from other open source projects, and also part of some code is inspired by the algorithms of other individuals or organizations. We will retain the copyright of the original open source code.

These modules is derived from other open source projects:

• MeRGBLed
• MeHumitureSensor
• Me7SegmentDisplay
• MeOneWire
• MeStepper
• MeRGBLineFollower

and these modules is inspired by some projects:

• MeUSBHost

As an open source library, we respect all contributors to the open source community and thank you very much for everyone's supervision.

If you have a discussion about licensing issues, please contact me (myan@makeblock.com -- Mark Yan)

1. Download the library from the Arduino Library manager

2. Search for Makeblock in the Library Manager and select Makeblock Drive Updated

3. Click "File-> Examples". There are some test programs in "MakeBlock Drive Updated->"

4. Depending on the type of board you're using, you need to modify the header file to match.

   For example, if you're using a mCore. You should change #include <MeOrion.h> to #include <MeMCore.h> Corresponding boards and there header file are:

   Orion <--------> MeOrion.h

   BaseBoard <----> MeBaseBoard.h

   mCore <--------> MeMCore.h

   Shield <-------> MeShield.h

   Auriga <-------> MeAuriga.h

   MegaPi <-------> MeMegaPi.h

The library includes an IR receiver implementation (MeIR) that uses a hardware timer ISR. Some buzzer/tone libraries (for example Tone or ezBuzzer) use the same AVR timer and will cause a linker error like:

multiple definition of `__vector_13`
collect2.exe: error: ld returned 1 exit status

To avoid this conflict you can disable the built-in IR interrupt handler. The library provides a small configuration header src/MeIR_config.h with a toggle:

1. Open src/MeIR_config.h in the library folder.
2. Uncomment the line #define ME_IR_DISABLE_ISR to disable MeIR's ISR.
3. Restart the Arduino IDE (or PlatformIO) to force a clean library rebuild.

When ME_IR_DISABLE_ISR is defined, the MeIR implementation will not define the timer interrupt vector and will not conflict with other libraries that need that timer. You can still use MeIR's send functions; however, receiving via the built-in ISR will be disabled — you'll need to poll MeIR::loop() or use another receiver approach if necessary.

If you prefer not to edit the library each time, create a local patch or a config file under your copy of the library (the repository includes MeIR_config.h for that purpose).

The MeGyro class has been significantly enhanced with full accelerometer and temperature sensor support for the MPU-6050 chip:

• double getAccX() - Get X-axis acceleration in g units (gravity = 1.0g)
• double getAccY() - Get Y-axis acceleration in g units
• double getAccZ() - Get Z-axis acceleration in g units
• double getAcc(uint8_t index) - Get acceleration for specified axis (1=X, 2=Y, 3=Z)

• double getTemperature() - Get temperature from MPU-6050 internal sensor in degrees Celsius

#include "MeAuriga.h"

MeGyro gyro(0, 0x69); // For Auriga onboard gyro

void setup() {
  Serial.begin(115200);
  gyro.begin();
}

void loop() {
  gyro.update();
  
  // Read gyroscope angles (degrees)
  Serial.print("Angles - X: "); Serial.print(gyro.getAngleX(), 2);
  Serial.print(" Y: "); Serial.print(gyro.getAngleY(), 2);
  Serial.print(" Z: "); Serial.println(gyro.getAngleZ(), 2);
  
  // Read accelerations (g units)
  Serial.print("Accel - X: "); Serial.print(gyro.getAccX(), 3);
  Serial.print(" Y: "); Serial.print(gyro.getAccY(), 3);
  Serial.print(" Z: "); Serial.println(gyro.getAccZ(), 3);
  
  // Read temperature
  Serial.print("Temperature: "); Serial.print(gyro.getTemperature(), 1);
  Serial.println(" °C");
  
  delay(100);
}

• Auriga_MeGyroTest: Enhanced test program with Serial Plotter compatibility
• AurigaTempSensors: Demonstrates reading from both gyro temperature sensor and onboard NTC thermistor

If you have problem with the compiler complaining of ambiguous reference to MePort, you may have an old version of the MakeBlock library installed. You can remove it by uninstalling the official Makeblock library via the library manager.