Hello,
I am new to developing anything that needs to be compiled and trying to figure out what the hell are build_flags are supposed to do.
Lets take this example from the docs:
; Build options
build_flags =
${common_env_data.build_flags}
-DSSID_NAME=HELLO
-DSSID_PASWORD=WORLD
How would I address SSID_NAME/SSID_PASSWORD from inside my main.cpp file?
Other than being able to see if they are defined, I don’t seem to be able to access those things in my functions.
#ifdef SSID_NAME
#ifdef SSID_PASSWORD
You need to create two macros in your program.
#define XSTR(x) #x
#define STR(x) XSTR(x)
Then your code can get the values like
String s = STR(SSID_NAME);
frida
3
In: platformio.ini
I have:
[platformio]
env_default = esp01
[env:esp01]
platform = espressif8266
framework = arduino
board = esp01
build_flags = '-DaSSID="your_ssid"' '-DaSSID_PASS="your_password"'
In: *.cpp
I have:
void setup() {
// pinMode(BUILTIN_LED, OUTPUT);
Serial.begin(115200);
thing.add_wifi(aSSID, aSSID_PASS); // needs only once
See example here Redirecting...
[env:string_defines]
build_flags = '-DHELLO="World!"' '-DWIFI_PASS="My password"'