arduino uno+ lcd "ywrobot arduino lcm1602 v1" ne fonctionne pas

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1

salut j'ai un arduino UNO et un lcd de type "ywrobot arduino lcm1602 v1"
j'ai essayé l'exemple "hello word" et le LCD s'allume mais n'affiche rien, rien que des carreaux
heeeeeeeeeeeeelpp!!!!

2

Google translate:

hi I have an Arduino UNO and lcd type "ywrobot arduino lcm1602 v1"
I tried the example "hello world" and the LCD turns on but does not display anything, just tiles
heeeeeeeeeeeeelpp!!

Try looking here: --> http://arduino-info.wikispaces.com/LCD-Blue-I2C

Don