Alcohol detection digital door locking using Keypad, Servo motor ,oled display and keypad

Guys l'm seriously in need for your help. l have a code for my project. I have tested individuals components but my when l upload my code and connected everything on the arduino. The Oled doesn't light up. Can you help me with a well functioning code . The deadline for presenting prototype is on monday.

Your problem is the thing over there. We are not clairvoyant and able to determine what your code is or what your design is like. Since we cannot see it post an annotated schematic of your design showing all connections, power, ground, power supplies etc. Also include links to technical information on each of the hardware devices.

Hint: Do not put your project off until it is due, start early. This is Monday and I just got your post so I am fairly certain it will not be finished on time, it is best to ask for an extension.

Simple rule: A Power Supply the Arduino is NOT!

LOL. Monday 31 July.

a7

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