MDB on ESP32 library
89 USD -
2 days89 USD
593 15 0 2 days89 USD
I have commercial experience working with ESP32 at the peripheral level: RMT, UART, DMA. I have a good understanding of the specifics of MDB 4.2 — timing requirements for pulses, inter-byte delays, commands, ACK/NAK confirmations. And the equipment to test this locally.
What you will receive:
— complete implementation of the MDB 4.2 protocol for ESP32 via RMT
— clean C++, convenient API
— documentation with examples of using the library
Before starting, I will clarify a few details regarding the required role of the device and priority commands.
I am ready to discuss.
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4 days99 USD
1251 35 1 3 4 days99 USD
Hello. I have done low-level things on ESP32, I understand how to implement MDB 4.2 (9-bit, timings, state machine), including through RMT. This is not an easy task, but I will do it properly and stably, not just "to make it work." I can immediately think through the architecture of the library and provide clear usage examples.
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1 day89 USD
656 9 0 1 day89 USD
Good day, Sergey!
In general, the task is clear, but for an accurate response regarding deadlines and price, I would like to clarify some questions that arose after analyzing your task.
Please write in private messages — we will discuss the details and your wishes.
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7 days89 USD
1045 7 0 7 days89 USD
Hello, Sergey!
I have experience in development for ESP32 (C++) and an understanding of low-level work with peripherals. Implementing MDB 4.2 through RMT is the most correct way to handle the 9-bit protocol on this platform without using hardware "crutches."
What I propose:
RMT Driver: Configuring RMT for stable transmission and reception of 9-bit frames (Mode bit) with strict adherence to MDB timing.
Library: Implementation of the main commands of the protocol (Vending Machine Controller or Peripheral side — depending on your need). The code will be modular and optimized for ESP-IDF or Arduino framework.
…
Documentation: A detailed README with a description of methods, connection diagram (via optical isolation/level converter), and examples of initialization.
Clean code: Use of modern C++, minimizing blocking calls.
I am ready to discuss the details of your hardware part and the specifics of the devices that need to be connected.
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25 days89 USD
296 2 0 25 days89 USD
Hello! I have reviewed your request for library development. I have experience working with embedded systems (STM32/ESP32) and complex protocols.
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