Nokia 5110 Graphic LCD Does not Work

olikraus:
Do the pin numbers match to the numbers given in the constructor call of the example? To me it seems that RST and SCE need to be exchanged.

Note: Sparcfun referes to an Adafruit lib one year ago. The Adafruit lib has been updated (rewritten?) 5 months ago. Be careful when using tutorials and software from different sources.

Oliver

Well can you refer to the most updated tutorial about the screen? :slight_smile:

MarkT:

n0talentGEEK:
I have connected:
Pin 1 VCC to 5V

Well given its a 3V3 device that can't be a good start!

[BTW mobile phone circuitry is all 3V3 or lower]

Based on the tutorial Graphic LCD Hookup Guide - SparkFun Learn I can put the 3.3V device with 10K ohm and 1K ohm directly to 5V.