How can I synchronize the code? PLZ

Projects Programming
1

I have a number of air quality sensors :
pms5003: for PM2.5
BME680
GPS
SD card
RTC: real time

i want to write program for match them but i do not have an knowledge

i have ARDUINO uno and ESP32 WEMOS and i do not know which one is better.
I can work with each one alone and get data but I do not know how I can write the program all together .

2

The first thing is to describe to yourself what you want the thing you're building to do.

3

Your question is vague. Hope this might answer your question.

You need to structure your code to perform the task at hand. You will understand this structure when start looking at examples and even more codes.(Most of the good resources online explain the structure in detail).

For a beginner, you would put the code you want to run once in the
"void setup()" of the code (usually initializing SD Card and the Sensors.)
put the code you want to run continually in the
void loop() ( usually the readings of the sensors, doing calculations and performing tasks when the sensor reading hit a certain value(like running a motor)).


void setup()
{
...
Initialize Serial connection, defining the pins as INPUT and OUTPUT and more
...
}

void loop()
{
//
Code for Reading the Sensors,
//
//
Code for reading GPS
//
//
Code for RTC
//  
//
Code for Storing all the read values of the sensors
///
}
4

what do you mean by synchronize or "match them"?

GPS, once acquired, can be used to set a real time clock or correct it if the error exceeds some threshold.

reading your sensors is independent of clock updates.

presumably reading the sensors doesn't need to be continuous, perhaps only as often as every 10 minutes. those values can be stored on an SD card along with a timestamp from the RTC.

5

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