DAGU MR. Tidy User Manual Download | Manualshive

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Mr. Tidy is a unique and versatile robotic platform ideal for students and hobbyist alike. The 2DOF arm and
array of sensors make this robot capable of so much more than just line following and object avoidance. An
open framework makes experimentation and expansion quick and easy.

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Summary of Contents for MR. Tidy

Page 1: ...ic platform ideal for students and hobbyist alike The 2DOF arm and array of sensors make this robot capable of so much more than just line following and object avoidance An open framework makes experi...

Page 2: ...Contents Main board features Assembly Installing the software Understanding the sample software How it works Trouble shooting Using the diagnostic software Specifications 3 4 9 10 13 15 16 21 2...

Page 3: ...Main board Features 3...

Page 4: ...arm is attached to the base Start by removing the nuts and spring washers shown in the photo bellow Do not completely remove the screws This will allow you to use a screwdriver to join the two sectio...

Page 5: ...brass spacers and remove the main board STEP 4 Insert 6x AA UM3 NiMh batteries Do not use alkaline batteries as they cannot supply enough power for the robot and cannot be recharged Note how the batte...

Page 6: ...ure the battery cable is behind the mounting post so it cannot jam in the gears STEP 6 Mount the arm onto the base with 3x8mm screws as shown The screwdriver goes between the gears from above It may b...

Page 7: ...STEP 7 Now that the arm is mounted we need to tie the wires to the frame and connect all the wires to the main board Pay careful attention to the orientation of the plugs 7...

Page 8: ...nection may damage the receiver STEP 9 Check your connections carefully before turning the robot on When you turn it on it should start by playing a simple tune The robot will then open its gripper lo...

Page 9: ...to program we have chosen to make it compatible with the Arduino IDE and have included a USB interface This manual assumes that the Arduino IDE version 18 or later is being used Although the robot co...

Page 10: ...rduino programming environment as this is easier for beginners You will see several tabs at the top these tabs help organise the program making it easier to use The first tab shows you the main progra...

Page 11: ...n here This is basically a scribble page The fourth tab contains a list of constants Normally these values do not change They are listed here to simplify program adjustments such as calibration of the...

Page 12: ...begin operation The loop function is the main core of the program and repeats continuously until the robot is shutdown or reset This function can be broken into several steps 1 Check the timer and ch...

Page 13: ...h their IR LED Unlike the front sensors these LEDs are individually controlled allowing the visible LEDs to be used to display patterns or the status of the robot This does not interfer with object de...

Page 14: ...is read and a 0 when a white mark is read In the sample software external interrupts are used to monitor these pins and count when they change states As this encoder cannot determine direction the sa...

Page 15: ...ght With the gripper and arm encoders check that the encoder disk is as close as possible to the encoder PCB Load the diagnostic program and connect 12V DC to the recharging socket Check the encoder w...

Page 16: ...have the Arduino Programming Environment loaded on your computer version 18 or later Open the program Mr_Tidy_PCB_diagnostic Go to the tools menu and select the Arduino Mega as your board type Make s...

Page 17: ...o low Now run the serial monitor this allows you to communicate with the robot Make sure the baud rate in the lower right corner of the serial monitor window is set to 9600 The robot should start by p...

Page 18: ...ues in the constants tab and then upload the program again When the red green and blue readings on the serial monitor are the same then the sensor is calibrated Write these values down so they can be...

Page 19: ...eadings used by the sample software to determine what action to take The optional sensor alignment rings may affect the sensitivity of the sensors but will help maintain their alignment if the robot b...

Page 20: ...wheels are not in contact with the ground Below you can see a photo of the gripper motor with it s drive gear removed Remember the arm and gripper motors have two gears that need to be removed If you...

Page 21: ...frequency 38KHz Motor control 4x FET H bridges rated at 4A continuous with current sensing Position feedback 2x Wheel encoder resolution 24 counts per revolution 1x Arm encoder resolution 27 counts p...

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