ESP32 based Point of Sale

$30-250 USD

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将近 3 年前

$30-250 USD

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Esp32 based point of sales system, for the danish payment provider called mobilepay. Mobilepay is a phone based payment system, where a client photograph a QR code within the mobilepay app to provide a payment. The paied amount will be fixed within the esp32 code. When a payment is sent, the esp32 should receive a confirmation via REST api, and then give out x amount of pulses to fake a coin signal in machines and alike, we have access to the sandbox by mobilepay, and are fully ready. Mobilepay documentation is on the link below: [login to view URL] What you need to look at is the Mobilepay (Point of sale) API, this is what your firmware must be communicating with here. A bt iBeacon might be needed in order to complete this. But in short, we need a working pcs of firmware, before anything milestone is paid out, and what you bid is what you get so dont ask for more then you bid. ALSO read the above dokumentation, might be some things i left out. For the right freelancer, this job should be pretty easy, but dont bid if you did not atleast skim the dokumentation Please!

Arduino

Microcontroller

Embedded Software

Electrical Engineering

Software Architecture

项目 ID: 30120091

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6提案

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活跃3 年前

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@mpoonawala1

I have experience of using ESP32 with mostly every main service providers out there, AWS, Google Cloud, Azure IoT, IFTTT, ThingSpeak, etc. So a connecting another server using Rest API will be easy. Dear Sir, I have experience in providing complete embedded solutions for 4 years. I am skilled in programming microcontrollers like Renesas, Texas Instruments, PIC, Arduino, Espressif, and many more. I can design schematics and PCBs regarding the projects, as I have done in many of my own projects It will be an easy and less time consuming task for me. I can assure you that if you work with me once, you will always work with me on these kinds of projects. I will do whatever it takes to completely 100% deliver on this project and earn a 5-star rating from you as well. Also if you have any minor changes related to this task after completion, I will do it for free. Looking forward to working with you on this project. Awaiting your reply. Kind Regards, MPoonawala.

$125 USD 在17天之内

5.0

(10条评论)

3.6

6威客以平均价$184 USD来参与此工作竞价

@Devrits

Hi Hiring Manager I am Firmware Developer for ESP32, PIC, STM32, nRF5X, Arduino My core skills and experience in the field of Embedded and IoT system development are: - Firmware Development:- Assembly, C, C++. - Schematic/PCB Design:- EagleCAD, Altium Designer, KiCad, and EasyEDA. - GUI Development:- Qt(C++) (for Windows, Linux, and macOS), C#, and .Net. - Embedded GUI Development:- uGFX, LittlevGL, emWin. - Hardware Peripherals:- USART, SPI, I2C, I2S, CANBus, OneWire, USB OTG, USB Host, USB Device (MSD, HID, CDC, DFU), Ethernet, RTCC, ADC, DAC. - Version Control Tools - Git (GitLab, GitHub, and BitBucket). - Documentation: Markdown, Doxygen. I have worked on following families of Microcontrollers from various manufacturers: - Microchip:- PIC12, PIC16, PIC18, PIC24, dsPIC30, PIC32MX, PIC32MK, PIC32MZ, and dsPIC33. - Atmel (now Microchip):- ATtiny, ATmega, ATSAM, and AT89C. - ST Microelectronics:- STM8, STM32F0, STM32F1, STM32F4, STM32L, STM32G, STM32W - Texas Instrument:- MSP430, MSP432, TM4C, F28M. I have experience on following wireless SoCs/SoMs: - BLE - CC25/6, nRF51/2, ESP32, PICO D4. - WiFi - ESP8266, ESP32, Particle P0/1. - Cellular - SIM800, SIM5320, SIM7600, Quectel BG96, A9/A9G. Interfaces: - USB (HID, MSD, CDC, DFU) - SD Card/MMC - UART(Serial) - SPI/I2C - CANbus - MIDI - Ethernet - Secure OTA using WiFi/BLE, 2G/3G/4G. Thanks

$250 USD 在4天之内