Volunteer chair, communications chair

Put a QR code on a poster

Make a poster with a code that sends parents to a signup, and change where it points without reprinting.

When you are done

You will have a printable poster carrying a QR code, and a short link you can repoint later without touching the paper.

Choose what the code points at

Open Forms, then the QR poster.
Paste a link when the destination will not change.
It goes straight there and cannot be changed afterwards.
Use a PTO HQ code for anything printed in quantity.
It prints as ptohq.org/s/… and can be repointed afterwards. A poster taped to forty classroom doors outlives the link it was made for.

A long destination makes a dense code. PTO HQ says so when it happens, and a dense code is one a phone struggles to read across a hallway.

Write the headline as the action.
Scan to sign up for Carnival shifts. It is what somebody reads from across a corridor.
Fill in the Event date, and an Extra line if the poster needs one.
Fill in Who to ask and Their email.
A parent who cannot scan then has somebody to contact.

Print one poster and scan the code with a phone before making forty copies.
A code that is correct in the browser and unreadable on paper is a poster nobody uses.
Scan it from the distance a parent will actually stand at.

Change the destination on the code rather than reprinting the paper.
Point last year's carnival poster at this year's signup and the paper on the wall is correct again.
Read the scan count to see whether the poster was used.
Each code records how many times it was scanned and on which days, so a poster nobody scans is visible as a number rather than a guess.

The printed poster carries the headline, the date, and who to ask with their email.
Scanning the code with a phone opens the destination you chose.
After a scan, the code's count rises.
Changing the destination of a PTO HQ code leaves the printed code working.

What you see	What it means	What to do
PTO HQ warns that the link makes a dense code.	The destination is long, so the code has more squares and each one is smaller.	Use a PTO HQ code instead. It prints as a short address and stays readable across a hallway.
A phone will not read the printed code.	Usually the print is too small or the paper is glossy under a corridor light.	Print it larger and on plain paper, and scan from the distance a parent will stand at.
The code opens the wrong page.	The destination was changed, or the code was made from a link you pasted rather than a PTO HQ code.	A PTO HQ code can be repointed from the same page. A pasted link cannot, and the poster has to be reprinted.