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robotic:explorer [2026/09/05 04:44] – external edit 127.0.0.1robotic: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.
  
-====== 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.
  
-====== Examples ======+===== Examples =====
 {{:robotic:explorer:dsc_0220a.jpg?400|Turbo explorer}} {{:robotic:explorer:dsc_0220a.jpg?400|Turbo explorer}}
  

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robotic/explorer.txt · Last modified: 2026/09/26 20:24 by tony
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