Robotics : 17548


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Subject:	Re: is it possible to use a polarity switch with a RCX input?
Newsgroups:	lugnet.robotics, lugnet.robotics.rcx
Date:	Mon, 25 Mar 2002 14:34:02 GMT
Viewed:	1163 times

In lugnet.robotics, Jonathan Wilson writes: > Basicly, what I want is a button, switch or whatever on my model that > when moved one way causes one input to be sent to the RCX but when moved > differently it causes a different input to be sent to the RCX. Should > also have a 3rd "off" state. > I am going to use it on my RCX controlled tank. RCX will use 2 touch > sensors plus 1 motor to drive treads forward or back, touch sensors will > trigger if it bumps into something. > The "switch" I need will controll second motor attached to a large > turntable to rotate turret. Use a resistor to make one of the states of the switch read less than a full short. Setup as a light sensor. 0 means off 50~ means one state and 100 means another. This is the basis for alot of the touch sensor multipliers. I am sure if you dig around you can find the right values. I don't have any my books handy.

Message has 2 Replies:

		Re: is it possible to use a polarity switch with a RCX input?
(...) But... be aware that the 'polarity switch' has only two connectors (for two sets of wires). It's not a '3-way' where you can try to select one of two inputs by moving the lever. The action is forward-off-reverse with one power source connected (...) (23 years ago, 25-Mar-02, to lugnet.robotics, lugnet.robotics.rcx)

		Re: is it possible to use a polarity switch with a RCX input?
(...) Actually, you want it to be unpowered instead of powered; giving the sensor power will just waste your batteries heating up the resistors. Setting it up as SENSOR_TYPE_NONE and SENSOR_MODE_PERCENT (or SENSOR_MODE_RAW) under NQC would be much (...) (23 years ago, 25-Mar-02, to lugnet.robotics)

Message is in Reply To:

		is it possible to use a polarity switch with a RCX input?
Basicly, what I want is a button, switch or whatever on my model that when moved one way causes one input to be sent to the RCX but when moved differently it causes a different input to be sent to the RCX. Should also have a 3rd "off" state. I am (...) (23 years ago, 24-Mar-02, to lugnet.robotics, lugnet.robotics.rcx)

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