We are Maithri Aquatech, Hyderabad-based sustainable solution manufacturer, who have developed MEGHDOOT, a device that generates clean water from air, without depending on any other water source.
For our standalone solutions, placed in a public setting, we are looking for someone who could help develop a system for us, which enables a consumer to make a payment (possibly with a QR code) at the machine location, which then triggers water to be dispensed after the payment is received. This system should also be able to track the total water dispensed and total amount received from that specific machine, along with related specifics. A message should also be received by the consumer.
If the amount received is lesser than the amount to be paid, a refund should be given with a message.
This system should be capable of handling such interactions with multiple machines simultaneously.