can you give me solution in my error…
Arduino: 1.6.6 Hourly Build 2015/09/29 07:43 (Windows 7), Board: "NodeMCU 1.0 (ESP-12E Module), 80 MHz, 4M (1M SPIFFS), v2 Prebuilt (MSS=536), Disabled, None, 115200"
C:\Users\Rasiwan\Documents\Arduino\sketch_apr24f\sketch_apr24f.ino: In function 'void setup()':
sketch_apr24f:40: error: 'checkGPS' was not declared in this scope
timer.setInterval(5000L,checkGPS); // every 5s check if GPS is connected, only really needs to be done once
^
C:\Users\Rasiwan\Documents\Arduino\sketch_apr24f\sketch_apr24f.ino: In function 'void loop()':
sketch_apr24f:58: error: 'displayInfo' was not declared in this scope
displayInfo();
^
exit status 1
'checkGPS' was not declared in this scope
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