added libraries and clean up

This commit is contained in:
Lukas 2013-02-14 03:12:31 +01:00
parent d94fed811b
commit 75ebfe5579
4 changed files with 23 additions and 5 deletions

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@ -1,13 +1,18 @@
#include "Arduino.h"
#include "INPUT_74HC4051.h"
//should be called in setup()
void INPUT_74HC4051::begin(uint8_t analog, uint8_t s0, uint8_t s1, uint8_t s2,CallbackFunction cbF) {
//analog pin which output Z is connected to
_analog = analog;
//3 digital pins where S0,S1,S2 are connected to
_s0 = s0;
_s1 = s1;
_s2 = s2;
pinMode(_analog,INPUT);
pinMode(_s0,OUTPUT);
@ -16,8 +21,9 @@ void INPUT_74HC4051::begin(uint8_t analog, uint8_t s0, uint8_t s1, uint8_t s2,Ca
_callbackFunction = cbF;
//init start values
//initalize start values
uint8_t pin,r0,r1,r2;
//run through the 8 I/O pins
for (pin=0; pin<8; pin++) {
r0 = bitRead(pin,0);
r1 = bitRead(pin,1);
@ -30,6 +36,7 @@ void INPUT_74HC4051::begin(uint8_t analog, uint8_t s0, uint8_t s1, uint8_t s2,Ca
}
}
//should be called in loop(), read values and call callback function on change
void INPUT_74HC4051::loop() {
uint8_t pin,r0,r1,r2;
int value;
@ -40,6 +47,7 @@ void INPUT_74HC4051::loop() {
digitalWrite(_s0, r0);
digitalWrite(_s1, r1);
digitalWrite(_s2, r2);
//not sure if nessesary
//delayMicroseconds(10);
value = analogRead(_analog);
if (_value[pin] < value - INPUT_74HC4051_TOLERANCE || _value[pin] > value + INPUT_74HC4051_TOLERANCE) {
@ -49,6 +57,7 @@ void INPUT_74HC4051::loop() {
}
}
//maybe useful later
int INPUT_74HC4051::getSpecificValue(uint8_t pin) {
if (pin >= 8)
return -1;

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@ -1,5 +1,8 @@
/*
INPUT_4051.h - Library for reading inputs from 4051 multiplexer
INPUT_72HC4051.h - Library for reading inputs from 74HC4051 multiplexer
library is for specialiced use: all I/O ports are used as analog inputs, values are stored and a callback function is called, when a value changes
*/
#ifndef INPUT_74HC4051_h
#define INPUT_74HC4051_h

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@ -12,7 +12,7 @@ void INPUT_MCP23017::begin(uint8_t addr,CallbackFunction cbF) {
_callbackFunction = cbF;
// set defaults!
//set all ports as inputs
Wire.beginTransmission(MCP23017_ADDRESS | _addr);
Wire.write((byte)MCP23017_IODIRA);
Wire.write(0xFF); // all inputs on port A
@ -23,7 +23,7 @@ void INPUT_MCP23017::begin(uint8_t addr,CallbackFunction cbF) {
Wire.write(0xFF); // all inputs on port B
Wire.endTransmission();
//activate pullup resistors
Wire.beginTransmission(MCP23017_ADDRESS | _addr);
Wire.write(MCP23017_GPPUA);
Wire.write(0xFF); // all pullup resistors on port A
@ -34,6 +34,7 @@ void INPUT_MCP23017::begin(uint8_t addr,CallbackFunction cbF) {
Wire.write(0xFF); // all pullup resistors on port B
Wire.endTransmission();
//inverse all inputs
Wire.beginTransmission(MCP23017_ADDRESS | _addr);
Wire.write((byte)MCP23017_IPOLA);
Wire.write(0xFF); // inverse all inputs
@ -95,6 +96,7 @@ void INPUT_MCP23017::loop() {
}
}
//maybe useful later
int INPUT_MCP23017::getSpecificValue(uint8_t pin) {
if (pin > 16)
return LOW;

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@ -1,5 +1,9 @@
/*
INPUT_MCP23017.h - Library for reading inputs from MCP23017 port Expander
INPUT_MCP23017.h - Library for reading inputs from MCP23017 port Expander
library is for specialiced use: all I/O ports are used as digital inputs with internal pullup resistor active, values are stored and a callback function is called, when a value changes
*/
*/
#ifndef INPUT_MCP23017_h
#define INPUT_MCP23017_h