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Add digital write all and fix all examples with test of pcf8574 start

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This commit is contained in:
Renzo Mischianti 2020-10-05 08:13:38 +02:00
parent b7655a7735
commit d4f46e1ce8
14 changed files with 194 additions and 20 deletions
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16
PCF8574.cpp
View File

@ -697,14 +697,14 @@ bool PCF8574::digitalWrite(uint8_t pin, uint8_t value){
}
bool PCF8574::digitalWriteAll(PCF8574::DigitalInput digitalInput){
setVal(0, digitalInput.p0);
setVal(1, digitalInput.p1);
setVal(2, digitalInput.p2);
setVal(3, digitalInput.p3);
setVal(4, digitalInput.p4);
setVal(5, digitalInput.p5);
setVal(6, digitalInput.p6);
setVal(7, digitalInput.p7);
setVal(P0, digitalInput.p0);
setVal(P1, digitalInput.p1);
setVal(P2, digitalInput.p2);
setVal(P3, digitalInput.p3);
setVal(P4, digitalInput.p4);
setVal(P5, digitalInput.p5);
setVal(P6, digitalInput.p6);
setVal(P7, digitalInput.p7);
return digitalWriteAllBytes(writeByteBuffered);
}

7
examples/Arduino4Leds4ButtonsWithInterrupt/Arduino4Leds4ButtonsWithInterrupt.ino
View File

@ -31,7 +31,12 @@ void setup()
pcf8574.pinMode(P5, OUTPUT);
pcf8574.pinMode(P4, OUTPUT, LOW);
pcf8574.begin();
Serial.print("Init pcf8574...");
if (pcf8574.begin()){
Serial.println("OK");
}else{
Serial.println("KO");
}
timeElapsed = millis();
}

9
examples/blinkOnPin0/blinkOnPin0.ino
View File

@ -14,11 +14,18 @@ PCF8574 pcf8574(0x39);
void setup()
{
Serial.begin(115200);
delay(1000);
// Set pinMode to OUTPUT
pcf8574.pinMode(P0, OUTPUT);
pcf8574.pinMode(P1, INPUT);
pcf8574.begin();
Serial.print("Init pcf8574...");
if (pcf8574.begin()){
Serial.println("OK");
}else{
Serial.println("KO");
}
}
void loop()

7
examples/encoderWithBasicLibraryFunction/encoderWithBasicLibraryFunction.ino
View File

@ -49,7 +49,12 @@ void setup()
pcf8574.setLatency(0);
// Start library
pcf8574.begin();
Serial.print("Init pcf8574...");
if (pcf8574.begin()){
Serial.println("OK");
}else{
Serial.println("KO");
}
}
bool changed = false;

7
examples/encoderWithFullLibraryFunction/encoderWithFullLibraryFunction.ino
View File

@ -44,7 +44,12 @@ void setup()
pcf8574.pinMode(P2, INPUT);
// Start library
pcf8574.begin();
Serial.print("Init pcf8574...");
if (pcf8574.begin()){
Serial.println("OK");
}else{
Serial.println("KO");
}
}

9
examples/interruptWemos/interruptWemos.ino
View File

@ -42,13 +42,20 @@ void keyPressedOnPCF8574(){
void setup()
{
Serial.begin(9600);
delay(1000);
pinMode(ESP8266_INTERRUPTED_PIN, INPUT_PULLUP);
attachInterrupt(digitalPinToInterrupt(ESP8266_INTERRUPTED_PIN), keyPressedOnPCF8574, FALLING);
for(int i=0;i<8;i++) {
pcf8574.pinMode(i, INPUT);
}
pcf8574.begin();
Serial.print("Init pcf8574...");
if (pcf8574.begin()){
Serial.println("OK");
}else{
Serial.println("KO");
}
}
void loop()

8
examples/keyPressedPin1/keyPressedPin1.ino
View File

@ -14,11 +14,17 @@ unsigned long timeElapsed;
void setup()
{
Serial.begin(115200);
delay(1000);
pcf8574.pinMode(P0, OUTPUT);
pcf8574.pinMode(P1, INPUT);
pcf8574.begin();
Serial.print("Init pcf8574...");
if (pcf8574.begin()){
Serial.println("OK");
}else{
Serial.println("KO");
}
}
void loop()

8
examples/keyPressedPin1_storedOnBuffer_async/keyPressedPin1_storedOnBuffer_async.ino
View File

@ -14,11 +14,17 @@ unsigned long timeElapsed;
void setup()
{
Serial.begin(115200);
delay(1000);
pcf8574.pinMode(P0, OUTPUT);
pcf8574.pinMode(P1, INPUT);
pcf8574.begin();
Serial.print("Init pcf8574...");
if (pcf8574.begin()){
Serial.println("OK");
}else{
Serial.println("KO");
}
timeElapsed = millis();
}

8
examples/keyPressed_withInterrupt/keyPressed_withInterrupt.ino
View File

@ -20,10 +20,16 @@ unsigned long timeElapsed;
void setup()
{
Serial.begin(115200);
delay(1000);
pcf8574.pinMode(P0, OUTPUT);
pcf8574.pinMode(P1, INPUT);
pcf8574.begin();
Serial.print("Init pcf8574...");
if (pcf8574.begin()){
Serial.println("OK");
}else{
Serial.println("KO");
}
timeElapsed = millis();

9
examples/ledEsp32OnTheSecondI2C/ledEsp32OnTheSecondI2C.ino
View File

@ -46,12 +46,19 @@ void setup()
Serial.begin(112560);
I2Cone.begin(16,17,400000); // SDA pin 16, SCL pin 17, 400kHz frequency
delay(1000);
// Set pinMode to OUTPUT
for(int i=0;i<8;i++) {
pcf8574.pinMode(i, OUTPUT);
}
pcf8574.begin();
Serial.print("Init pcf8574...");
if (pcf8574.begin()){
Serial.println("OK");
}else{
Serial.println("KO");
}
}
void loop()

8
examples/ledWemos/ledWemos.ino
View File

@ -31,12 +31,18 @@ PCF8574 pcf8574(0x20);
void setup()
{
Serial.begin(9600);
delay(1000);
// Set pinMode to OUTPUT
for(int i=0;i<8;i++) {
pcf8574.pinMode(i, OUTPUT);
}
pcf8574.begin();
Serial.print("Init pcf8574...");
if (pcf8574.begin()){
Serial.println("OK");
}else{
Serial.println("KO");
}
}
void loop()

9
examples/readAll_Interrupt/readAll_Interrupt.ino
View File

@ -20,11 +20,18 @@ unsigned long timeElapsed;
void setup()
{
Serial.begin(115200);
delay(1000);
pcf8574.pinMode(P0, OUTPUT);
pcf8574.pinMode(P1, INPUT);
pcf8574.pinMode(P2, INPUT);
pcf8574.begin();
Serial.print("Init pcf8574...");
if (pcf8574.begin()){
Serial.println("OK");
}else{
Serial.println("KO");
}
Serial.println("START");

8
examples/readAll_Interrupt_lowMemory/readAll_Interrupt_lowMemory.ino
View File

@ -24,11 +24,17 @@ unsigned long timeElapsed;
void setup()
{
Serial.begin(115200);
delay(1000);
pcf8574.pinMode(P0, INPUT);
pcf8574.pinMode(P1, INPUT);
pcf8574.pinMode(P2, INPUT);
pcf8574.begin();
Serial.print("Init pcf8574...");
if (pcf8574.begin()){
Serial.println("OK");
}else{
Serial.println("KO");
}
Serial.println("START");

101
examples/writeAllEsp8266/writeAllEsp8266.ino Normal file
View File

@ -0,0 +1,101 @@
/*
KeyPressed with interrupt and digital write all
from P4 to P7
by Mischianti Renzo <http://www.mischianti.org>
https://www.mischianti.org/2019/01/02/pcf8574-i2c-digital-i-o-expander-fast-easy-usage/
*/
#include "Arduino.h"
#include "PCF8574.h"
// For arduino uno only pin 1 and 2 are interrupted
#define ARDUINO_UNO_INTERRUPTED_PIN D3
// Function interrupt
void ICACHE_RAM_ATTR keyPressedOnPCF8574();
// Set i2c address
PCF8574 pcf8574(0x38, ARDUINO_UNO_INTERRUPTED_PIN, keyPressedOnPCF8574);
unsigned long timeElapsed;
void setup()
{
Serial.begin(115200);
delay(1000);
Serial.println("INIT");
pcf8574.pinMode(P0, INPUT);
pcf8574.pinMode(P1, INPUT_PULLUP);
pcf8574.pinMode(P2, INPUT);
pcf8574.pinMode(P3, INPUT);
pcf8574.pinMode(P7, OUTPUT);
pcf8574.pinMode(P6, OUTPUT, HIGH);
pcf8574.pinMode(P5, OUTPUT, LOW);
pcf8574.pinMode(P4, OUTPUT, LOW);
Serial.print("Init pcf8574...");
if (pcf8574.begin()){
Serial.println("OK");
}else{
Serial.println("KO");
}
Serial.println("START");
timeElapsed = millis();
}
unsigned long lastSendTime = 0; // last send time
unsigned long interval = 3000; // interval between sends
bool startVal = HIGH;
bool keyPressed = false;
void loop()
{
if (keyPressed){
uint8_t val0 = pcf8574.digitalRead(P0);
uint8_t val1 = pcf8574.digitalRead(P1);
uint8_t val2 = pcf8574.digitalRead(P2);
uint8_t val3 = pcf8574.digitalRead(P3);
Serial.print("P0 ");
Serial.print(val0);
Serial.print(" P1 ");
Serial.println(val1);
Serial.print("P2 ");
Serial.print(val2);
Serial.print(" P3 ");
Serial.println(val3);
keyPressed= false;
}
if (millis() - lastSendTime > interval) {
Serial.print("WRITE VALUE FROM P4 TO P7 ");
Serial.println(startVal);
// pcf8574.digitalWrite(P7, startVal);
bool startVal2 = LOW;
if (startVal==HIGH) {
startVal = LOW;
startVal2 = HIGH;
}else{
startVal = HIGH;
startVal2 = LOW;
}
PCF8574::DigitalInput digitalInput;
digitalInput.p4 = startVal2;
digitalInput.p5 = startVal;
digitalInput.p6 = startVal2;
digitalInput.p7 = startVal;
pcf8574.digitalWriteAll(digitalInput);
lastSendTime = millis();
}
}
void keyPressedOnPCF8574(){
// Interrupt called (No Serial no read no wire in this function, and DEBUG disabled on PCF library)
keyPressed = true;
}