How do you connect multiple pins into a single 5V and GND port?

Hi all,

I am following the below website to build a project that will read the temperature using a TMP36 sensor and display it on an LCD 16 X 2 display.

According to the schematic diagram below, there are two pins that need connected into the 5V port and then two pins into one of the GND ports. I am unsure of how to do this as to me it seems as though you can physically only connect one pin at a time to a port?

Thanks for any help provided.

Interface TMP36 with Arduino - Display Temperature on LCD (microcontrollerslab.com)

Welcome to the forum

Use the power rails on the breadboard to expand the number of 5V and GND connections available, as in the picture, and connect the power lines of the temperature sensor to them

Hi, thanks for the response. Can you please just explain to me what you mean by "use the power rails available, as in the picture" ?

Thank you

Something like this :point_down:t3:

image

Also keep in mind that TMP36 requires very low current to operate (~50 uA). So eventually you can connect its VCC to any digital pin set to OUTPUT,HIGH and its GND to any digital pin set to OUTPUT,LOW.

To do a real project with any success, you need to understand your components, starting with breadboard basics. Follow this tutorial.

Breadboarding Tutorial

The breadboard has groups of 5 contacts in columns and each of the contacts in a column are joined together. This allows components such as an LCD display to be plugged into adjacent columns and for connections to be made to its pins

The breadboard also has long rows of contacts that run along the edges of the breadboard and although they are in groups of 5 all of the contacts in each row are connected together (*** see below). This allows you to use them as power rails to distribute power to the components plugged into the breadboard as most require power

*** there are exceptions to this rule as some breadboards have a break in the centre of each row to allow multiple voltage rails to be used. This is usually obvious because the connected contacts in the rows are denoted by a solid line joining them and the centre break is then obvious

If you could look at the underside of the breadboard it would look much like this. The red arrows indicate power rails.

What @UKHeliBob expressed in a graphic form:

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