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| robotic:explorer [2022/04/11 23:44] – [Hardware description] tony | robotic:explorer [2026/09/26 20:24] (current) – tony |
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| In my example of this board, the repeatability of distance readings is quite good - with a spread of 4 values (ie +/- 2 about the mean) for stationary readings (both robot and environment not moving) for 3 out of the 4 sensors. The 4th sensor seems to vary more than twice as much, maybe one of the components (resistor, photo diode, photo transistor) is faulty. | In my example of this board, the repeatability of distance readings is quite good - with a spread of 4 values (ie +/- 2 about the mean) for stationary readings (both robot and environment not moving) for 3 out of the 4 sensors. The 4th sensor seems to vary more than twice as much, maybe one of the components (resistor, photo diode, photo transistor) is faulty. |
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| ====== Software ====== | ===== Software ===== |
| Despite the board having full H-bridge driver hardware, the example //Explorer// code (file dated 24/01/2011) assumes that the main drive motors are of the analog pulse-width driven, continuous rotation, servo type. That is they only require a single control line for forward, back and stop control. The example software for the "Mr Tidy" robot handles normal PWM DC motors, and has the same corner infrared collision detection hardware, but it also has a lot of other features and so requires a controller with a lot more I/O pins than an Arduino UNO. | Despite the board having full H-bridge driver hardware, the example //Explorer// code (file dated 24/01/2011) assumes that the main drive motors are of the analog pulse-width driven, continuous rotation, servo type. That is they only require a single control line for forward, back and stop control. The example software for the "Mr Tidy" robot handles normal PWM DC motors, and has the same corner infrared collision detection hardware, but it also has a lot of other features and so requires a controller with a lot more I/O pins than an Arduino UNO. |
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| ======Examples====== | ===== Examples ===== |
| {{:robotic:explorer:dsc_0220a.jpg?400|Turbo explorer}} | {{:robotic:explorer:dsc_0220a.jpg?400|Turbo explorer}} |
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| * [[http://www.dagurobot.com/miniature_servo_magnetic_clutches|Miniature servo Magnetic clutches]] | * [[http://www.dagurobot.com/miniature_servo_magnetic_clutches|Miniature servo Magnetic clutches]] |
| * [[https://web.archive.org/web/20130127120828/http://letsmakerobots.com/node/32198|Miniature servo Magnetic clutches]] | * [[https://web.archive.org/web/20130127120828/http://letsmakerobots.com/node/32198|Miniature servo Magnetic clutches]] |
| =====Rover 5===== | ===== Rover 5 ===== |
| * {{robotic:explorer:explorer_instruction_manual.pdf|Explorer instruction manual}} | * {{robotic:explorer:explorer_instruction_manual.pdf|Explorer instruction manual}} |
| * {{robotic:explorer:rover5_arduino.zip|Explorer example Arduino code}} | * {{robotic:explorer:rover5_arduino.zip|Explorer example Arduino code}} |
| * [[https://web.archive.org/web/20140708040248/http://letsmakerobots.com/node/36521|Understanding the "Explorer" PCB]] | * [[https://web.archive.org/web/20140708040248/http://letsmakerobots.com/node/36521|Understanding the "Explorer" PCB]] |
| * [[http://www.dagurobot.com/Robot_Chassis/Rover_5_chassis_with_0_encoder_accessories|RS011-2/0]], [[http://www.dagurobot.com/Rover_5_chassis_with_2_encoders_accessories|RS011-2/2]], [[http://www.dagurobot.com/Rover_5_chassis_with_4_encoders_4motors|RS011-4/4]] versions of Rover 5 chassis | * [[http://www.dagurobot.com/Robot_Chassis/Rover_5_chassis_with_0_encoder_accessories|RS011-2/0]], [[http://www.dagurobot.com/Rover_5_chassis_with_2_encoders_accessories|RS011-2/2]], [[http://www.dagurobot.com/Rover_5_chassis_with_4_encoders_4motors|RS011-4/4]] versions of Rover 5 chassis |
| =====Mr. General, related platform with similar hardware===== | ===== Mr. General, related platform with similar hardware ===== |
| * (https://sites.google.com/site/daguproducts/home/tutorials/understanding-mr-general) | * (https://sites.google.com/site/daguproducts/home/tutorials/understanding-mr-general) |
| * [[http://www.dagurobot.com/Mr_General?search=RS002&category_id=0|RS002]] | * [[http://www.dagurobot.com/Mr_General?search=RS002&category_id=0|RS002]] |
| * {{robotic:explorer:understanding_the_mr._general_-_attachments.zip|Understanding the Mr. General - attachments}} | * {{robotic:explorer:understanding_the_mr._general_-_attachments.zip|Understanding the Mr. General - attachments}} |
| * http://www.arobose.com/docs/Mr.General_Instruction_manual.pdf Mr. General instruction manual | * http://www.arobose.com/docs/Mr.General_Instruction_manual.pdf Mr. General instruction manual |
| =====Mr. Tidy, related platform with similar hardware===== | ===== Mr. Tidy, related platform with similar hardware ===== |
| * (Has the same corner sensors and PWM main motors) | * (Has the same corner sensors and PWM main motors) |
| * [[https://sites.google.com/site/daguproducts/home/Software/Mr_Tidy_MkII_Sample_Code_V3.zip|Mr Tidy MkII Sample Code V3]] | * [[https://sites.google.com/site/daguproducts/home/Software/Mr_Tidy_MkII_Sample_Code_V3.zip|Mr Tidy MkII Sample Code V3]] |
| * {{https://www.robotshop.com/media/files/PDF/manual-rs008.pdf|Mr. Tidy manual}} | * {{https://www.robotshop.com/media/files/PDF/manual-rs008.pdf|Mr. Tidy manual}} |
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| =====Playful Puppy user guide===== | ===== Playful Puppy user guide ===== |
| * {{http://www.arduino-direct.com/docs/PuppyRobotUser-guide.pdf|Details how to assemble pan-tilt bracket and servos}} | * {{http://www.arduino-direct.com/docs/PuppyRobotUser-guide.pdf|Details how to assemble pan-tilt bracket and servos}} |
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| =====IR Compound Eye===== | ===== IR Compound Eye ===== |
| * [[https://robottini.altervista.org/diffident-robot|Using the "compound eye" with an Arduino processor (including code)]] | * [[https://robottini.altervista.org/diffident-robot|Using the "compound eye" with an Arduino processor (including code)]] |
| * [[https://web.archive.org/web/20140212152707/http://letsmakerobots.com:80/node/10822|Cheap homemade IR compound eye]] | * [[https://web.archive.org/web/20140212152707/http://letsmakerobots.com:80/node/10822|Cheap homemade IR compound eye]] |
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