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Nice !I was working exactly on the same design !Using esp8266 for small node footprint
The problem with image burning, is that you need sd cards that have the same capacity and if you only have 100Mb used on 2Gb, you will copy 2Gb on each sd card !I've developed a kind of script that was used to copy content to usb drives (for an international conference, about 500 keys). The script is launched when a usb drive is plugged in, it mount the drive, copy files from source folder to usb drive (and not image burning that will be too long on 16gb drive with only 200Mb of content), umount the drive and notify on the desktop. The copies are parallelized and no button needs to be clicked, it completely standalone !I haven't found a such solution before (linux or windows) so i've wrote one ! It's on my github : https://github.com/stonfute/BashUSBCopy
Is it a TTL laser module or a normal one that you just control with a relay or a transistor ?
WOW ! Amazing ! It's incredibly compact and well designed !It looks like a professional engraver.I've searched for those cheap motor but reference BGY2812 doesn't seams to be correct ! >> Ok i've just found, it's 28byj-48 !Your laser module seems to be really good, where can i buy it ?Do you have any estimation of the project price (including 3d printing, mechanics and electronics) ?
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