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 Robotics / Handy Board / *7109 (-10)
  Re: unknown error
 
One obvious thing is that you must declare your local variables at the start of the function before any statements. Gary Livick (...) (25 years ago, 21-Dec-99, to lugnet.robotics.handyboard)
 
  unknown error
 
i've IC version 2.82. whenever i load the program below, it keeps giving me an error on the line which 'INT SPEED_TABLE[]' is declared. what's wrong?? void main() { int i; start_press(); int speed_table[]= {0b00000000, (...) (25 years ago, 21-Dec-99, to lugnet.robotics.handyboard)
 
  speed control bytes
 
i understand that when the PWM is off, the mask: 0b11111111 switches all motor ports on in the forward direction. but if the PWM is on, what bit string correspond to what speed? is it possible to have motor ports 0 and 1 controlled using PWM while (...) (25 years ago, 21-Dec-99, to lugnet.robotics.handyboard)
 
  pneumatic info
 
Does anyone know of a good web site or book on basic design or general information about pneumatic systems. Thanks (25 years ago, 21-Dec-99, to lugnet.robotics.handyboard)
 
  system_pwm_off
 
The 'system_pwm_off' function comes standard with the 'lib_hb.c' file. this function switches the PWM off for all the motor ports. is it possible to turn the pwm off for a specific motor port while the others are able to run with PWM? i've a DC (...) (25 years ago, 21-Dec-99, to lugnet.robotics.handyboard)
 
  Motor driver circute problem Using L298N
 
Hi guys, I built a Hbridge motor driver using the IC L298N. But it is not working properly. It is swithcing properly with the inputs but it is not drawing the current required for the motor. I am sensing the out Voltage as 8v but when i connect the (...) (25 years ago, 21-Dec-99, to lugnet.robotics.handyboard)
 
  Re: Advice
 
Need more information. What kind of "light" sensors are you referring to? CdS cels, IR light sensors, active sensors? There is alot of information on wiring sensors in the Handyboard manual available in the Documentation section of the MIT (...) (25 years ago, 20-Dec-99, to lugnet.robotics.handyboard)
 
  Advice
 
How do I connect the light sensors to the board correctly? Cheri Burch (25 years ago, 20-Dec-99, to lugnet.robotics.handyboard)
 
  Re: Futaba or Hitec servos
 
(...) As always with the "what is better" question, I must ask... What do you mean by "better"? They will operate the same, I think they have the same cable pinout. The Hitec ones are cheaper usually, but a little larger for the same specs. At the (...) (25 years ago, 19-Dec-99, to lugnet.robotics.handyboard)
 
  Re: Shaft Encoders
 
(...) While I am not familiar with the LEGO Rotation Sensor (simply because I havn't got one yet), I have constructed, for the moment, a "homebrew" rotation sensor. My recent models have mostly been models of the robots we build at work. They are (...) (25 years ago, 18-Dec-99, to lugnet.robotics, lugnet.robotics.handyboard)


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