UPI Vending Machine Interface with Dynamic QR code | @squarelinestudio | @Elecrow

n today’s video, we are taking our previous Elecrow HMI project to the next level! Last time, we made a custom UPI payment interface — but this time, we are building something much more powerful and practical:

👉 A fully functional UPI-based vending machine interface with Dynamic QR Code generation!
No need to enter the amount manually — the QR automatically updates based on the selected product or price, just like real vending machines.

You’ll also see how the system prints a UPI payment receipt using a thermal printer, making the entire process seamless.
And the best part?
🎁 One of you will WIN this Elecrow 7-inch HMI Display… absolutely FREE!
Giveaway details are shared in the video, so don’t miss out.

To try out free trial version of Altium, click here - https://www.altium365.com/yt/techiesms
Also Enroll for Altium Student Lab - https://www.altium.com/in/yt/techiesms

You can support me🙏🏻 and also get benefitted on Patreon :- https://www.patreon.com/techiesms
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🎁 GIVEAWAY – Win the Elecrow 7" HMI Display!
To participate:
1️⃣ Like this video
2️⃣ Subscribe to the channel
3️⃣ Comment below what project YOU would build with this HMI display
After 10 days, we will randomly pick one lucky winner from the comments!
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👨🏻‍💻 Important Links 👨🏻‍💻

[Purchase Link] 7in HMI Display from Elecrow - https://www.elecrow.com/crowpanel-advance-7-0-hmi-esp32-ai-display-800x480-artificial-intelligent-ips-touch-screen-support-meshtastic-and-arduino-lvgl-micropython.html?utm_source=kol_techiesms&utm_medium=social&utm_campaign=idd=5

All sizes of CrowPanel ESP32 Advanced HMI Displays
https://www.elecrow.com/display/esp-hmi-display/esp32-hmi-display-advance-series.html?utm_source=kol_techiesms&utm_medium=social&utm_campaign=idd=5

ELECROW Display Customization service:
https://www.elecrow.com/custom-screen.html?idd=5
Github Link for Example Code - https://github.com/Elecrow-RD/CrowPanel-Advance-7-HMI-ESP32-S3-AI-Powered-IPS-Touch-Screen-800x480

Supported Libraries Folder - https://drive.google.com/drive/folders/1npWkVzctd7e0Y6H5hahk8uxGhy9idxCz
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Buy the components for your projects and support techiesms💡🔌

ESP32 Dev board - https://www.techiesms.com/product/esp32-development-board-doit-devkit-v1/
Seeed Studio XIAO ESP32C3 - https://www.techiesms.com/product/seeed-studio-xiao-esp32c3/
UniHiker K10 Board from DFRobot - https://techiesms.com/product/unihiker-k10/

and many more such components are available at https://www.techiesms.com
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⏱ Time Stamps ⏱

00:00 Introduction
02:24 Specifications
04:08 Using this display with Arduino IDE
06:38 Uploading First Sketch
08:26 Testing Example Code to Check Display & Touch
09:45 Setting Up Squareline studio
11:40 Explaining the UI for Vending Machine
14:48 Exporting UI Files and Testing on Display
17:14 Adding Logic in the code for Dynamic QR code and Receipt
22:44 Testing my Final code of UPI Vending Machine Interface
24:35 What's Next
25:05 Giveaway Announcement

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🎥 🎙 My Video Gear 🎙🎥

Camera - Canon 750d
Lens - 50mm f/1.8 STM Lens (https://amzn.to/32gqnsi), 24mm f/2.6
Key Light - Godox SL60W (https://amzn.to/3522mHe)
Fill Light/Back Light - Osaka Lightning Setup (https://amzn.to/2I5cdDi)
Tripod - https://amzn.to/3uNhC4H
Microphone - Zoom H1N(https://amzn.to/3Osh12A)
Editing - Final Cut Pro X on MacBook Pro ( https://amzn.to/3vHcSyJ )

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Видео UPI Vending Machine Interface with Dynamic QR code | @squarelinestudio | @Elecrow канала techiesms