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Hardware

This category contains 4 posts

SLAM

SLAM (Simultaneous Localisation And Mapping) is the process of building a map by sensing the environment surrounding a robot and at the same time using that map to locate the robot and navigate it. This topic has been something of a hot item in robotics research for many years and is a core technology used … Continue reading

Improving position tracking of a mobile robot

In a number of previous articles I’ve discussed a line following robot and the monitor program that runs on a PC to show the robot in action. This monitor program displays the position of the robot as it moves around the track. This position or Pose data is transmitted from the robot to the PC on a … Continue reading

BNO055 IMU

The BNO055 IMU or Intelligent 9-axis absolute orientation sensor as Bosch like to call it is a sensor that combines a 3 axis gyro, accelerometer and magnetometer in a single small package. In many respects this makes it similar to products like the Mindsensors AbsoluteIMU and the Dexter Industries dIMU, however the BNO055 has two features which … Continue reading

I2C on the EV3

For some time now I’ve been working to improve the i2c capability of leJOS on the EV3. In particular to enable operation at a higher speed than the standard LEGO devices and to improve compatibility with devices using standard pull up resistors. Devices designed to work with the NXT/EV3 must operate at 9.6Kbps and have pull … Continue reading

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