Simple input is pretty simple to test using MMIDE. All of the 20 pins of the CGMMSTICK can be set to be digital inputs. To test a simple button input, just use this testing facility.
All 20 of the CGMMSTICK1 lines can be controlled for testing.
CGMMSTICK1 button input.
A simple button input for the CGMMSTICK would use a 10 kilo ohm resistor to pull the input line (in this case MMBasic pin 20) high, then the button press would short the line low.
Testing the input.
With the right pin set to “Digital Input” both states of the button can be tested using MMIDE to do the work. In the picture above the red square and value of 1 indicate that the button is not pushed – the resistor is pulling the input line high.
Ten pins (Pin 1-10 from the perspective of MMBasic) can be used to read analog values from 0V up to a maximum of 3.3V.
MMIDE provides a voltmeter applet that can be set to any of those ten pins and will repeatedly measure the voltage on the selected pin for display as both a small bar graph and numerically.
MMIDE “voltmeter” application.
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