Max 14 - Remoted Controlled Robot

Let's Make Robots Robots
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This robot uses a Technological Arts Microcore11 HC11 processor, (2) Devantech SRF08 Range Finders (I2C) and a Devantech Magnetic Compass.  QRB1134 based homemade wheel encoders are mounted on the drive wheel to measure distance.  The Chassis is a Zagros Robotics Max 14 Square mobile robot base with a few extra decks.

The HC11 controls the motors driver and communicates with the SRF08s and Compass module.  The SRF08 and compass module use the I2C bus to communicate.  This would allow up to 14 more SRF08s to be added the robot without using any additional I/O (additional SRF08 information https://www.zagrosrobotics.com/shop/item.asp?itemid=571&catid=3)

The higher intelligence is handled by various programs running on a remote laptop.  This also keeps the laptop out of harms way, and allows the robot to be remotely stopped when required. 

Lower Deck Detail

The lower deck holds the batteries, power distribution board and HC11 / backplane.  Development started with (8) D batteres.  This was later upgraded to a 12 amp-hr, 12 vdc sealed rechargable battery.  The power distribution board has a 3 amp fast acting fuse to prevent excessive smoke escape.

LowerDeckDetail

Later, the D Cell batteries were replaced by a 12amp-hr, 12vdc, sealed, rechargable battery.  The battery is held in place by Velcro.  The Velcro holds the battery in place, but allows it to be removed for recharging or transporting the robot.

Rechargable Battery

Replaced the MicroCore HC11 with a new SRV-1 Blackfin Camera and WiFi module.

 

(https://www.zagrosrobotics.com/shop/item.aspx?itemid=805)

379×500

I also modified one of the examples (in c#) to control the robot. 

 

Test Console to remotely control the robot.

 

 

 

 

 

Remote Controlled or Autonomous Robot

  • Actuators / output devices: 12VDC Motors
  • Control method: Bluetooth
  • CPU: HC11
  • Power source: 12vdc
  • Sensors / input devices: 2 x QRB1134 (wheel encoders), SRF08 Range Finders, Devantech Compass Module
  • Target environment: Indoor Robot
This is a companion discussion topic for the original entry at https://community.robotshop.com/robots/show/max-14-remoted-controlled-robot
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More
information and pics please?

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HC11 Commands

The Bluetooth Modem allows me to send commands to robot remotely.

Here are the avail. commands:

I2C, HEDS Encoder Supported - (low res encoder)
MENU
(f)orward
(b)ackward
(l)eft
®ight
(s)top
§ing# SRF08 sonar
(q)ing# Sencomp sonar
(u) right light sensor
(d)irction
(e)ncoder count (raw)
(j)encoder count (inches)
(v) Voltage Level
(a)dvance ?###
(n)(l/r)### rotate to heading
(m)essage speek (#)
(8)reset PWM
(9)reset Encoder Count
(x)Enable PWM Speed
(y)Disable PWM Speed
(h)elp
(z)(l/r)### set PWM speed (0-100)
>

 

 

 

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Nice Robot
Nice detailed write up off site. You should include the link directly in your description and not just in specs section. I would like to see you post a video here of it running.

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baterys

i recamend getting a rechargeble bat

so you save mony in this econamy

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Bluetooth Test Video
I just added a short (and bad) video of us testing the bluetooth remote control with my new laptop. The delay in the beginning is the robot powering up and establishing the bluetooth connection. I am using Hyperterminal to test drive the robot around and read the sensors.