Building a USB - HID Keyboard (DIY on a prototyping board)

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The prototyping process of a USB HID Keyboard. The hardware is built on a raster board. There's also an extension board for an SD-Card and a Bluetooth module. I'm planning to make this into a micro USB thumbstick which will emulate a HID device (Keyboard/Joystick or Mouse), and will be able to run scripts from the SD-Card and accept external commands via Bluetooth.
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Music - Credits
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"Night Train" by DanucD
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"Voyage" by LEMMiNO
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"Comet Halley" by Stellardrone
Licensed under Creative Commons License (CC BY)
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coreWeaver March, 2022

Опубликовано:

18 сен 2024

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Комментарии : 25

@ryanajames3719 2 года назад

I've seen a couple of videos related to HID keyboards on RU-vid. Some people are using much "bigger" micros, esp32, blue pill, even rasp pi. This is by far the most cost effective and easiest to implement solution. Great video, as always

@coreWeaver Год назад

thank you so much ! Keep your thumbs up and stay tuned for more

@jane.q6280 Год назад

Amazing soldering skills. Thanks for the video

@coreWeaver Год назад

thank you for watching

@elektron2kim666 14 дней назад

I made a TTL device by accident on the Cardputer as I coded "a reader" for a GPS module and wrote to serial / USB as well. With a switch or sending "$keyboard,5" I could give it 5 minutes in HID mode, maybe, in the future. Not sure where to start, but I'm "through" the USB cable in that situation.

@AliasdHacker 2 месяца назад

Impressive write-up and explanation. Your content is well made.

@zengwenxin8402 2 года назад

Nice work! Are you going to make some instruction or tutorial of how you write the firmware and program it?

@hobomaster6237 2 года назад

cool project . would love a tutorial on the firmware and program

@venom_ftw9316 Год назад

This is really awesome work, I'm working on a project like this and I was wondering if you could help me understand the firmware of for this project. I noticed that you are using the IO pins of the MCU for USB communication. Is there a specific way you're sending those commands or is there anything else?

@iceinmylean3947 Год назад

Cool stuff. How did you implement the whole USB communication on this device? Did you use something like V-USB?

@coreWeaver 10 месяцев назад

no, I wrote my own stack

@iceinmylean3947 10 месяцев назад

@@coreWeaver that's pretty sick. I assume it's very minimal given the footprint of the device? Will you be sharing this by any chance?

@coreWeaver 10 месяцев назад

@@iceinmylean3947 the fw is heavily based on a piece of code I wrote for a company. I also have an nda signed with them so I can't make the source public. I can however recompile a custom fw. I did that a couple of times for other projects

@dekus80 5 месяцев назад

Author stuck in 90х. I was already programming at90s avr at that time. In 2010x there were already stm8 in the same 8bit category, head above avr. At that time I forgot about avr, like a bad dream. stm8 already had 1-wire programming, on-the-fly settings, with better peripherals and an on-board debugger full-fledged uc at the price like an attiny stump. Now you can buy stm32 like ch32v203 with phy usb with no external components for 0.5$ for chip. You can buy esp32-c3 module pcb with bluetooth and wifi for 1.8$. And so on. You should take uc for the task, and not to try use one for all. When I did a full size usb/bluetooth keyboart I took 1.3$ ch582m chip with usb/bluetooth onboard and with many pins. If there were any other conditions, I would choose from them. And 8bit uc has already died out as a class. Now 32bit uc can be bought even for 18 cents in retail by piece. "code I wrote for a company" with avr in 2024?, ahahaha.

@mathicalee Год назад

Hey, nice work 👍 I wonder which key you used for media volume increase and decrease. I was able to manage other keys, but not the multimedia keys.

@jeffreywalter6213 Год назад

Can I purchase one of these devices ready to go? I want to use a contact closure from the output of an Allen-Bradley Micro820 PLC to trigger an "ENTER" HID keypress input to a PC.

@coreWeaver Год назад

sure. send me an email: core.weaver@gmail.com

@jane.q6280 Год назад

@@coreWeaver need a modified version of this, with 4 keys and two analog inputs. The inputs will be a temp sensor and a water level sensor. Can you modify the design to do this ? I sent you an email with the specifications. Thanks in advance

@coreWeaver Год назад

@@jane.q6280 sure. I'll get back to you

@overcheats4518 Год назад

Is there any way to contact you ? :)

@coreWeaver Год назад

core.weaver@gmail.com

@Edo_o_ 6 месяцев назад

Hey man I;m doing a similar project, would you mind sharing your firmware ? So that I can figure out what I'm doing wrong, thanks

@tobiaskarl4939 Год назад

Any AVR with 20 Mhz can do that ?

@coreWeaver 10 месяцев назад

basically, yes. the fw is compiled for the avr I had on my table at that moment.

@BrightBlueJim 5 месяцев назад

Yes, I get that the name of the channel is Designing HARDWARE, but it looks like a number of us are interested in your software development process as well. Do tell!