In Progress

based Arduino or Esp32 MDB vending machine cashless vending code.

I have a project on Arduino (exapmle Mega 2560 ).

The Arduino should act as a cash receiver and send exactly the amount that I deliver via Bluetooth to the balance. I have a working code, but it only works on a few coffee vending machines. Where it does not work, it blocks everything with one code:

#define CSH_ACK 0x0100 // Acknowledgment, mode bit set.

I also have an insulator circuit.

The fact is that it works on one device. I think my code works on level 1 alone.

Skills: Arduino, Microcontroller, Electronics, Electrical Engineering, PCB Layout

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About the Employer:
( 0 reviews ) tbilisi, Georgia

Project ID: #29034742

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yashwanthk60

Hi, I gone through your project description. It's similar to my work experience. I have done multiple projects on Arduino and bluetooth. Hopefully I'm the suitable person for this work. I can provide best work with o More

$244 USD in 7 days
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8 freelancers are bidding on average $126 for this job

binyameen441

Hello, thank you for your job posting. I read your description about--Arduino I am a senior electrical engineer. I have plenty of experience in firmware development and micro-controller developments. I can write the fi More

$30 USD in 1 day
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6.5
arifbilal75

Hi, Dear Prospective Client I have just read your job description carefully I have a degree in Electrical engineer and having experience of 4+ years I am working in the freelancing industry for the past 6 years. Durin More

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5.3
codehunger18

Hello there, I can help you in fixing the bug, just inbox me the code and I'll trace and/or fix, develop the code in a clean code manner to get the work done . Required Arduino and HC-05 is with me to test in real Ju More

$50 USD in 2 days
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4.8
Devpro11

Hello there. I hope to work with you because your project is very familiar for my past works. I have 3+ years experiences in Electrical Engineering & PCB Layout & Circuit Design. Hope further discussion about your proj More

$100 USD in 3 days
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3.9
engmahmoudsaber3

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sobhysara60

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