I know what BCM and BOARD mean when you set up the pi to work with the GPIO coding in python.
Recently a had a look in some code for raspberry written in c++ and everything is okay but how the code refers to the pins I don´t get it instead of using the GPIO pin #17 just like in BMC mode.
int led = D1;
I'm looking for a table or image like those on google that tell you the pins and the numbers but I can't find one for this convention.
I'm looking for a pinout diagram or something like that to know what pins are we working within this c++ piece of code.
This is the C++ code in particle's web IDE:
// -----------------------------------------
// Demonstrate Particle and IFTTT
/* -----------------------------------------
This program subscribes to a a particle event.
An IFTTT app monitors inbox activity of a Gmail account and publishes events to the Particle Cloud.
------------------------------------------*/
int led = D1;
int boardLed = D7;
// setup() is run only once, it's where we set up GPIO and initialise peripherals
void setup() {
// Setup GPIO
pinMode(led,OUTPUT); // Our LED pin is output (lighting up the LED)
pinMode(boardLed,OUTPUT); // Our on-board LED is output as well
// Escribimos que los leds estan incialmente apagados
digitalWrite(led,LOW);
digitalWrite(boardLed,LOW);
// Subscribe to an event published by IFTTT using Particle.subscribe
Particle.subscribe("evento_de_led_para_trabjar", myHandler);
// TODO:
// Subscribe will listen for the event unique_event_name and, when it finds it, will run the function myHandler()
// (Remember to replace unique_event_name with an event name of your own choosing. Make it somewhat complicated to make sure it's unique.)
// myHandler() is declared later in this app.
}
// loop() runs continuously, it's our infinite loop. In this program we only want to repsond to events, so loop can be empty.
void loop() {
// Extrañaba la famila de lenguajes de C ajaja
}
// LA siguiente sera una funcion que no retorna nada.... entonces es void
// Now for the myHandler function, which is called when the Particle cloud tells us that our email event is published.
void myHandler(const char *event, const char *data)
{
/* Particle.subscribe handlers are void functions, which means they don't return anything.
They take two variables-- the name of your event, and any data that goes along with your event.
In this case, the event will be "buddy_unique_event_name" and the data will be "on" or "off"
*/
if (strcmp(data,"led-off")==0)
{
// if subject line of email is "off"
digitalWrite(led,LOW);
digitalWrite(boardLed,LOW);
}
else if (strcmp(data,"led-on")==0)
{
// if subject line of email is "on"
digitalWrite(led,HIGH);
digitalWrite(boardLed,HIGH);
}
}
