ESP32 Forum

Hello. Let me introduce you to the payment system that I've developed

It doesn't require the seller to buy an expensive payment terminal and pay fees for each transaction (unless of course, your business becomes so successful that you exceed the Spark Plan offered by Google), and it doesn't require the clients to pay maintenance fees. Moreover, with KhadashPay, clients can create multiple accounts using a single RFID card, provided they use a different PIN for each account. The account information is encrypted and securely stored in the cloud. Additionally, KhadashPay has useful features such as "Belonging Check" and Integrity Verification.

If you're interested in this project, you can find tutorials for it on

https://www.instructables.com/DIY-IoT-P ... -Firebase/
https://medium.com/@Northstrix/diy-iot- ... 92ccea1245
https://www.hackster.io/northstrix/diy- ... pay-68c070


You can download the firmware for KhadashPay from one of these sources:

https://sourceforge.net/projects/khadas ... e-edition/
https://github.com/Northstrix/KhadashPa ... se-Edition

The tutorial for the DIY IoT Payment System With Google Firebase (KhadashPay Firebase Edition V1.0) is now available on Maker Pro
Here's a link for you: https://maker.pro/everything-esp/projec ... dition-v10

And by the way. I forgot to mention that this version of KhadashPay incorporates the capabilities of the DIY IoT Data Vault With Google Firebase (Midbar Firebase Edition V1.0) (https://www.instructables.com/DIY-IoT-D ... -Firebase/)

Here's the tab with the vault options.