Problem in breadboard power

G's picture


Joined: Sep 17, 2019

Replies: 4
Problem in breadboard power
October 7, 2019 - 6:43pm


I am making the fingerprint based voting system using arduino and after installing the lcd display and connecting it with the arduino the display works fine but the rest part of the breadboard of 830tie is not getting the power.In the image link given from the push button part the power is not getting supplied.Can anyone help me with the solution.Also I am using the power that is being given from laptop usb port no other power source is used.

Violet's picture


Joined: Aug 16, 2018

Replies: 33
Use a multimeter for debugging
October 9, 2019 - 11:56am

I am not sure which circuitdiagram you are referring to since no image is provided. But since this is power supply issue you can simply use a multi-meter to measure the voltage across the device terminals. Make sure you are getting 5V from the USB port and also make sure the vss pin and gnd pin of the sensor is also powered with 5V