ESP8266 - Write Single Field

18 views (last 30 days)
Rey Mat
Rey Mat on 21 May 2021
Edited: Vinod on 27 May 2021
Hello
I used the example program to write data to ThingSpeak and I have the following compilation error
c:/users/name/.platformio/packages/toolchain-xtensa/bin/../lib/gcc/xtensa-lx106-elf/4.8.2/../../../../xtensa-lx106-elf/bin/ld.exe: .pio\build\nodemcuv2\src\main.cpp.o:(.text.setup+0xc): undefined reference to `ThingSpeak'
collect2.exe: error: ld returned 1 exit status
*** [.pio\build\nodemcuv2\firmware.elf] Error 1
Here my include files
#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <secrets.h>
#include <ThingSpeak.h> // always include thingspeak header file after other header files and custom macros
I've searched on the web but I can't find a solution. If anyone can help me. Thank you in advance.

Answers (1)

Vinod
Vinod on 25 May 2021
Edited: Vinod on 27 May 2021
You don't have the ThingSpeak library in your list of project dependencies in your PlatformIO.ini file. You need to add the ThingSpeak library like this:

Communities

More Answers in the  ThingSpeak Community

Categories

Find more on Write Data to Channel in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!