AVR C programming: Generating QR-Code and printing it as image with ESC/POS on a receipt printer.

€250-750 EUR

Finalizat

Data postării:

peste 7 ani în urmă

€250-750 EUR

Plata la predare

We are developing a prototype. We use an Atmel 8-bit AVR microcontroler Atmega2560. Goal is to generate a QR Code of an arbitrary alphanumeric text of about 500-1000 characters. And this QR Code should be provided as an image in ESC/POS printing sequence (Printing command ESC * m nL nH d1...dk). So the result would be a byte array which holds that ESC/POS command. So steps are: 1) input is alphanumeric text. Character Set ISO-8859-1, Level Q. To do: Generating a QR Code . output: QR Code, e.g. as bitmap. 2) input QR Code. Todo: transform to ESC/POS sequence ( ESC * m nL nH d1...dk), which sends the QR code as image to a receipt printer (E.g. Epson printer TM-T88V) . Result: printer prints the qr code onto the receipt. As the code should run in a 8-bit AVR Microcontroler, the code should be provided as AVR C Source code. Could be tested e.g. on a Arduion board. If you are not able to provide AVR C code, next best would be standard C with only standard libraries, so that we easily can transfer it to AVR C. In latter case we have to agree on a reduction of the salary.

C Programming

Software Architecture

ID-ul proiectului: 11854914

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5 propuneri

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Activ: 8 ani în urmă

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Acordat utilizatorului:

@omarahmad81

Hello Rainer, I have already completed the QR part and some of the ESC/POS as well. I hope to deliver the project after the next week. Omar

€500 EUR în 10 zile

0,0

(0 recenzii)

0,0

5 freelanceri plasează o ofertă medie de €893 EUR pentru proiect

@rajeshpal007

Hi, I can do this. I have been programming in C/Linux for last 10+ years. Have developed many complex softwares. Thanks, Rajesh Pal

€2.222 EUR în 20 zile

5,0

(23 recenzii)

5,0

@maxbul

Dear sirs I have an experience in creation and modification of front-end software in retail since 1998. As one of the tasks, I had to write the modules for termoprinters for printing the labels and stickers, including the barcodes and QR-codes. Also, I have a very good experience in programming for AVR controllers and Arduino boards. I can combine that skills for that project. I will need several days on the next week to obtain a thermoprinter, compatible with your model for prototyping. Please, feel free to contact me in chat. With best regards Maxim Bulkowsky

€300 EUR în 15 zile