RE: Big Red Button

Projects General Guidance
1

Hi There Folks,

I need some assistance (total newbie).

My friend runs a charity and she has an event coming up where she needs to count the number of people that were there.

I need help with this very simple project.

I intend to buy 4 of these big red buttons: https://www.amazon.co.uk/45mm-Arcade-Style-Round-Button/dp/B06Y2VXR8B/ref=sr_1_6?ie=UTF8&qid=1534790521&sr=8-6&keywords=big+red+button

Whenever someone enters they push one of the 4 buttons and the arduino registers it as one press. Id like to have a sim card on the arduino and every hour it sends an SMS to a pre defined number with the total number of presses so far.

As I say this is time sensitive and for charity and I have less than 10 days to pull it off so I would really appreciate any help that anyone could give me with the wiring diagram and coding.

2

There are example sketches of digital inputs - you could adapt that.
Sending the sms is a bit harder but there are examples provided with the cards .

3

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