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

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.

Umiejętności: Programowanie C, Architektura oprogramowania

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O pracodawcy:
( 1 ocena ) Radolfzell, Germany

Numer ID Projektu: #11854914

Przyznane użytkownikowi:


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 w ciągu 10 dni
(0 Ocen)

5 freelancerów złożyło ofertę na średnią kwotę w wysokości €893 do tego projektu.


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

€2222 EUR w ciągu 20 dni
(23 Ocen)

Hello ! We want to discuss about your project as we have experience in it. What Differentiates us from the other freelancers : # Experience of more than 5 years in Unity 3D, Xcode, CoCoa 2d, Phonegap and major Więcej

€1000 EUR w ciągu 10 dni
(6 Ocen)
€444 EUR w ciągu 10 dni
(5 Ocen)

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, inclu Więcej

€300 EUR w ciągu 15 dni
(13 Ocen)