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It could be done but the USB descriptor would have to be modified. Those keys are usually part of a USB Mutimedia Device. This keyboard presents itself to the conputer as a HID Generic Keyboard so those keys won't be usable as such.
It can be done but the schematic and PCB would require some parts to be redesigned. Code would also have to be ported to Arduino Pro Micro.
It could be possible if you find the way of adding the multimedia device descriptor in the USB keyboard firmware. Or you can simply change nothing and make those key shortcuts in your operating system.
Could be useful in some cases but I'm not sure if it would help because the diode would impose a 0.7V drop between the PC USB and the actual USB hub circuit. With some devices it could work but with others could cause problems
You have to cut it in order to not have two competing power supplies (the PC and the external one). If you have two power supplies trying to feed the same circuit you may end up burning one of them.
Maybe you damaged something in the process. Make sure the GND wire is connected and the D+ and D- wires are also ok.
It depends on the battery technology e charge state. Consider for example two equal Li-Ion batteries. One of them (A) is fully charged at 4.2V and the other one (B) is discharged and has only 3.5V. In the moment you connect them in parallel there will be a sudden flow of energy from battery A to battery B until they reach balanced state, This sudden current is uncontrolled and can cause either battery to burn because of the amount of current involved. Of course, this depends on the battery technology. Some are more sensitive than others. When you think of power supplies the same happens. One may be providing 4.9V and the other 5.1V which means that the 5.1V power supply will be providing energy to the circuit and also into the other power supply which can result in damage to either one.
Yes, user masaleiro but not active in the community for a long time
Hi! In my opinion the 3mm plexiglass works perfectly fine. I don't feel any flex at all when typing. The fact that you have a PCB attached to all the switches which are tight on the plexiglass also helps to make it very sturdy
Hello. You should try to get one that says 5V. 6V might damage the devices.
Thanks! I'm glad you appreciate it! :) Best of luck in building your own
Hello. If the PCB traces can handle the 10A that will be no problem. The connected units will only take what they need and it will not be divided by 4 all the time (one unit can take 5A and other device 3A, other 2A and other 0A). The USB 3 power is the power from the USB ports on the computer. If you plug an external power source you can get much more, as long as the PCB traces and USB cables can handle the larger amount of current.
Hi. You can use the stepper motors from old printers to build a cnc/laser engraver. You could also use the chips from those printers but it would take a lot of work and I wouldn't recommend it at all for a beginner. I recommend you to do some research on arduinos and step-stick motor controllers to begin with. They're cheap and there's plenty of information online
Hi. You need a power adapter that outputs 5V. If you get one with 5V 1A or 2A it will do.
Hi. I do not now any company that does that although there are some, for sure. If you don't need a big resolution maybe 3D printing could work?
ESP8266 Soil Moisture Sensor to Domoticz
Hi. If you find a way to program the PIC18F4550 using the Arduino, then yes, you can. But I don't know any way of doing it.
Designing a Dual 40A PWM Speed Controller for Brushed Motors
Thanks! I never heard of the QFR frosty flake controller and just took a quick look. If it has at least one available pin it could be used to trigger the circuit to turn on/off the flash drive but it would still need the USB hub. Was nice to find that the developer of the QFR frosty flake was the guy who wrote the keyboard firmware that I used as inspiration to write my own :)
Hi. The Teensy also needs to be programmed but there are some projects online that may have the code available for you to download.
Hi! The weight of the Dremel is not the problem. The rods handle the weight just fine. The problem lies on the big forces applied to the end mill during machining.
Hello mbjrgk, thank you very much for your kind words. I'm glad it was useful for you :)
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Power Over Ethernet (PoE) Adapter
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