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thank you for watching. its probably a driver conflict, happened to me before. do you use the HW-260 development board? did you check whats going on in the Device Manager when you plugin the device in the USB? maybe try connecting on different USB port if available. are you sure that uploading of the micronucleus bootloader finished successfully?

@@self_taught_stuff yes I am using HW-260, but haven't checked what happened with the device manager. I did manage to program the attiny straight from the arduino, though, but I really expected to use the hw260 as it's easier and cleaner. Thanks for the reply

@@giulianorebuli open the device manager (Windows+X keys and select Device Manager from the menu), watch what happens when you plugin the board to the USB. try to change the USB port. I remember once I had similar problem and turned out to be bad ATtiny85 (or probably I bricked it with bad custom settings of the bootloader), if you have spare ATtiny85 try changing it with new one and see what will happen.

@@giulianorebuli i did some testing and here is what i found out that might help you. first of all I have to note that ATtiny85 doesnt have USB interface, the micronucleus bootloader is simulating the USB interface on pins 2 and 3 (PB3 and PB4). the micronucleus bootloader shares the same space with the program code. if you dont install the Digistump drivers on the PC but you have the micronucleus uploaded to the ATtiny85, when you connect the HW-260 board to that PC you will get an unknown device in the Device Manager but you wont get any error. if you install the Digistump drivers on the PC but you dont have the micronucleus bootloader uploaded to the ATtiny85 you will get an error from Windows telling you that the device is not recognized. if you check the schematic of the HW-260 development board, you can see that pin 2 and pin 3 are connected to the D+ and D- of the USB connector thru zener diodes, so if your code uses the pins 2 or 3 (PB3 or PB4) for some functionality (especially as output) in some cases the USB connection of your HW-260 board will be broken and you will get Windows error message that the device is not recognized when you connect the HW-260 to your PC. so all in all, you will get that Windows error of device not recognized if your ATtiny85 is bricked or is faulty, or if the micronucleus bootloader was not uploaded properly, or if you are using the pins 2 or 3 (PB3 or PB4) for some functionality. if everything is installed and its ok, then when you plug the HW-260 to your PC, in the Device Manager you will see a new item in the devices list named as "libusb-win32 devices" for 5-6 seconds and then it should disappear. please let me know if you have any other info about the issue or if you manage to solve it.

thank you, I am glad you like my videos. for now I am making videos from old projects, that's why I am not promoting my channel yet.

Sure, I will push the files to github once I get back home and I will send you a link to download them from there.

@@self_taught_stuff awesome, thank you so much!

@@thatBMWill here is a link to the github repository github.com/SelfTaughtStuff/coin_roll_crimper_mkd those files are made with SolidWorks 2017, atm I am using version 2018 and they open correctly. one change that I would suggest is to add marking on the bottom of the roll "molds" so that you can know which "mold" is for what coin and you can also do that to the crimpers too. if you manage to make the changes and if you want to share the STL files with others, please write a comment and I will pin that comment to the top so that others can download them.

yes it should work, sorry I dont have mac to test it out to be sure. it simulates keyboard so it should work on all other devices that you can connect a keyboard thru USB

all in all, around 35.5 hours to print the whole lamp body, one whole day to make, debug, refine and test the code, soldering and making the electronics took me just few hours.

this will be part of a bigger project. I will publish the video once I get some time to finish it, please be patient, I will provide all the information in that video.

i finally made a video, here it is if you want to watch it czcams.com/video/NwYqH8OTpto/video.html

Thanks for your question. I am using Linux (Ubuntu) as my main OS too, I am planning to redo the same video for Linux soon.

it should work for any coin, but you will have to resize the parts to fit the coin dimensions. if you want I can send you the SolidWorks files which you can edit and change dimensions.

@@self_taught_stuff Hi, I would like these files so I can modify for US coins! I will remix and give credit on Thingiverse!

It's free on Thingiverse if you have a 3D printer

I am sorry, I don't sell this crimper, but if you want you can follow the link in the description, download the files and you can find someone to print it for you. Have in mind that the sizes of the crimpers are made for Macedonian Denar coins and might not fit other currencies.

You have this for US coins?

@@marcosvalentin1378 no sorry. but if you want I can send you the SolidWorks files so you can modify the design to suit US coins size.