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C++ objects and CMake build system for Parallax Propeller
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Examples
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Sensor
Joystick
joystick_adc.c
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/*
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Joystick.c
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Simple Propeller P8X32A Propeller C demo with the Parallax 2-axis Joystick
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http://learn.parallax.com/propeller-c-simple-devices/joystick
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*/
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#include "
adcDCpropab.h
"
// Include adcDCpropab
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#include "
simpletools.h
"
// Include simpletools
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int
main
()
// Main function
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{
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pause
(1000);
// Wait 1 s for Terminal app
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adc_init
(21, 20, 19, 18);
// CS=21, SCL=20, DO=19, DI=18
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float
lrV, udV;
// Voltage variables
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while
(1)
// Loop repeats indefinitely
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{
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udV =
adc_volts
(2);
// Check A/D 2
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lrV =
adc_volts
(3);
// Check A/D 3
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putChar
(
HOME
);
// Cursor -> top-left "home"
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print
(
"Up/Down = %.2f V %c\n"
, udV,
CLREOL
);
// Display voltage
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print
(
"Left/Right = %.2f V %c\n"
, lrV,
CLREOL
);
// Display voltage
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pause
(100);
// Wait 1/10 s
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}
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}
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adc_init
void adc_init(int csPin, int sclPin, int doPin, int diPin)
Initialize A/D converter.
Definition:
adcDCpropab.c:21
HOME
#define HOME
HOME character (1) sends SimpleIDE Terminal's cursor to top-left "home" position.
Definition:
simpletools.h:233
pause
void pause(int time)
Delay cog from moving on to the next statement for a certain length of time.
Definition:
libws2812.c:125
simpletools.h
This library provides convenient functions for a variety of microcontroller I/O, timing,...
print
int print(const char *format,...) __attribute__((format(printf
Print format "..." args to the default simple terminal device. The output is limited to 256 bytes.
main
int main(void)
Definition:
GraphicsTest.c:20
adcDCpropab.h
Measure ADC124S021 as either a voltage or a raw, 12-bit5 adc value. This library is intended for DC m...
adc_volts
float adc_volts(int channel)
Get a voltmeter style floating point voltage measurement from one of the A/D converter's input channe...
Definition:
adcDCVpropab.c:17
putChar
void putChar(char c)
Print a char to the debug port.
Definition:
putChar.c:30
CLREOL
#define CLREOL
CLREOL character (11) erases all SimpleIDE Terminal characters to the right of the cursor.
Definition:
simpletools.h:323
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