DC Motor Ramp up command does not function correctly

Steven

I am having a issue with my programming. I am using the below program to run my robot, but it does not respond correctly. Our decoder from the Radio Receiver(RF control) is giving·0 volts or·Logic·0 when a required action is to take place. Otherwise any of the other three output from the decoder will be giving a will be giving a 5volt or Logic 1 output. Only one signal is ever going to be giving a Logic 0 pulse at one time. There will never be more than one of the four output giving a logic 0. Here is the code for a forward·ramp-up command that I have been trying to use. Our motors are 24 volt DC, and we are also using a H-Bridge that will transform our Basic Stamp pulsout commands to PWM. Here is the code:

Bean

You don't have a GOTO after the line "IF IN3 = 0 THEN forwardloop" therefore the code will simply continue on to the forwardloop regardless of the state of IN3.
Bean.

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Steven

Do I still need to put a pull up resistor in parallel from the signal from the decoder to the input pin of the basic stamp, similar to when you put a pull up resistor in parallel to the input when using whiskers on the boe bot?

Steve

Jon Williams

Steven,

A schematic and meaningful variable names in your program would go a very long way in helping others help you....

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Jon Williams
Applications Engineer, Parallax
Dallas, TX· USA

Steven

Here is a quick drawing of what I am talking about. If you see where the pull-up resistor is, thenyou will know what I am tlaking about. When I used the Whiskers with the boe-bot, we were required to use a pull up resistor to ensure that there is a logical 0 when you want something to happen.



Thanks

Steve