Serial Communication ESP and Arduino

[giraffenstaart20]

Deva do you know how you would code this so it is correct ?

[Power_Broker]

If you use SerialTransfer.h, the data is guaranteed to be sent and received reliably. The library automatically packetizes and parses the data for you and comes with many examples.

[Deva_Rishi]

@giraffenstaart20

Deva do you know how you would code this so it is correct ?

Of course i can make something up that will be a bit more reliable, but it is your school project.

have a look at : Robin2 's

Serial Input Basics

EDIT 05 May 2016 - please see the updated and shorter version of this Tutorial Introduction Newcomers often seem to have difficulty with the process of receiving Serial data on the Arduino - especially when they need to receive more than a single character. The fact that there are 18 different functions listed on the Serial reference page probably does not help You could write a small book and still not cover every possible situation for data reception. Rather than write pages and pages that…

The methods there may seem like a form of overkill, but they excel in reliability and are 'non-blocking'

@giraffenstaart20

when i say in my master code to only send data1 it still reads things in the nodemcu program. When i put data=100 that is more then the <20 it still does the command

have you checked to see if there is anything available in the buffer before you do

 data1 = s.read(); 

[giraffenstaart20]

sorry for the late responds, and yes i get it, it's my school project thank you for all the help!

[Deva_Rishi]

@giraffenstaart20

yes i get it, it’s my school project

It's not that we don't want to help, If there are specific issues you don't understand, we can try and point you in the right direction.

[giraffenstaart20]

yea i get it, thank for the help