We Made the BEST AI powered Payment Sound Box using ESP32 S3 🔥🔥

We built our own AI-powered Payment Sound Box inspired by PayTM! 🔥
This DIY sound box can accept UPI payments & speak out the amount instantly, generate dynamic QR codes of any fixed amount, and even answer AI-powered questions about your total revenue — just ask it out loud in natural language!

🔧 Hardware Used:

ESP32-S3 (16MB Flash, 8MB PSRAM) • 3.5" TFT LCD • 4x4 Hex Keypad • MAX98357 Amplifier • 8Ω Speaker • INMP441 Mic • TP4056 • Boost Module • Li-ion Battery

If you got your PCB desgin ready, well do try out NextPCB for your PCB orders
https://www.nextpcb.com/?code=techiesms
https://www.nextpcb.com/dfm

⚡ Platforms Used:
RazorPay Webhooks • Adafruit IO MQTT • ElevenLabs STT • OpenAI LLM + TTS • ArduinoJSON

📌 Watch our complete UPI Payment Series to understand how this works: https://www.youtube.com/watch?v=dSX5dhyHo3o&list=PLruzZCuhcsGPPxm_ERzmICGNRBlTvd2l9

📦 Components available on our store: www.techiesms.com

🎓 Courses: techiesms.graphy.com

________________________________________________________

🔌 Important Links

Try out NEXT PCB for your next PCB order
https://www.nextpcb.com/?code=techiesms
https://www.nextpcb.com/dfm

Code & Schematic - https://github.com/techiesms/AI-Payment-Sound-Box-

Flasher Link - https://techiesms.github.io/AI-Payment-Sound-Box-/

UPI Payment System Playlist - https://www.youtube.com/watch?v=dSX5dhyHo3o&list=PLruzZCuhcsGPPxm_ERzmICGNRBlTvd2l9
________________________________________________________

🛒 Components used in this video

TDT LCD Display - https://techiesms.com/product/3-5-inch-tft-touchscreen-display/
ESP32 S3 Module - https://techiesms.com/product/esp32-s3-wroom-n16r8/
MAX98357 Amplifier - https://techiesms.com/product/max98357-i2s-3w-class-d-amplifier/
INMP441 Microphone - https://techiesms.com/product/inmp441-microphone-module-i2s/
TP4056 Module - https://techiesms.com/product/tp4056-type-c/
5V Boost Module - https://techiesms.com/product/dc-dc-boost-converter-5v-8v-9v-12v/
4x4 Hex Keypad - https://techiesms.com/product/4x4-matrix-membrane-type-keypad/
Cavity Speaker - https://techiesms.com/product/8ohm-2watt-space-cavity-speaker/
Pushbutton - https://techiesms.com/product/tactile-pushbutton-switch-6x6x8mm-pack/


________________________________________________________

🔥 Don’t miss this on techiesms
⚡ price drop deals (limited stock)
👉 https://techiesms.com/product-category/price-drop/
🆕 newly launched products
👉 https://www.techiesms.com/elementor-15217/

________________________________________________________

💡 Support & exclusive perks
support techiesms and unlock early access & members-only content 🙏
👉 https://www.patreon.com/techiesms

________________________________________________________

⏱ Time Stamps

00:00 AI Payment Sound Box — Better Than PayTM?
00:48 Hardware Components Used (ESP32 S3, Display, Mic & More)
01:35 Circuit Schematic & PCB Design Explained
03:04 PCB Assembling & Soldering Process
03:34 Complete Code Logic — UPI Webhooks + AI Integration
08:48 Flashing Code to ESP32 S3
09:41 3D Printed Case Design & Assembly
10:39 Setting Up API Keys & Device Configuration
14:05 Demo 1 — UPI Payment with Open Amount QR Code
14:53 Demo 2 — Fixed Amount QR Code (Tamper Proof)
15:55 Demo 3 — AI Assistant Answering Revenue Questions 🤯
18:24 Why We Are NOT Selling This Project

_____ ___________________________________________________

🎥 🎙 My Video Gear 🎙 🎥
Camera – Canon 750D
Lens – 50mm f/1.8 STM: https://amzn.to/32gqnsi
Key Light – Godox SL60W: https://amzn.to/3522mHe
Tripod – https://amzn.to/3uNhC4H
Microphone – Zoom H1N: https://amzn.to/3Osh12A
Editing – Final Cut Pro X on MacBook Pro: https://amzn.to/3vHcSyJ
________________________________________________________

🌐 Connect with techiesms Everywhere

▶️ Main Channel: https://www.youtube.com/techiesms
▶️ Secondary Channel: https://www.youtube.com/@sachinsoni2684
📸 Instagram: https://www.instagram.com/techiesms/
🐦 Twitter: http://www.twitter.com/techiesms
📘 Facebook: http://www.facebook.com/techiesms
🌍 Website: https://www.techiesms.com


techiesms
explore | learn | share