Introduction
Firmware Development on XIAO - ESP32 C3 Board to get the Payment Data from server linked with the product on Yashi Technoviz Website through SIM GSM module.
Features
• Audio feedback of received amount is played via audio files stored in SD Card.
• This sound box is portable device device powered by Battery.
• It supports multiple Payment Gateways (Paytm, Rozarpay, Gpay, Phone Pe, UPI, credit card, Debit card.)
• Works over Cellular Network. SIM800L GSM module inside box.
• Mp3 Module, Amplifier Module.
• In-built Speaker
• Once Amount received, can immediately Print Invoice via Bluetooth Thermal Printer
• No need to pay any subscription fee for other Sound Box, just to need to recharge the SIM with minimum data plan.
