My goal is to have 1 usb that controls both the keyboard and the Slide Potentiometer.
There is one project I could find where someone added a Slide Potentiometer to a keyboard but it used 2 usbs. What blows my mind is nothing like this exist. I'm sure the color and placement might change a little but you get the idea of what I'm trying to do. This is a quick adobe rendering of what I want to do. You can change the power output of the Bluetooth module to increase range or save battery.Use the `special_functions( )` function to do custom things with your keyboard.This code supports 100% of the PS2 receiving protocol(one way communication) and has some extra features for a WASD keyboard(media keys).This code will work with any arduino and bluefruit module, you just need to change the pinouts and stuff.I have only had luck with Windows 10(it was able to solve the funky driver errors from the adafruit bluefruit module).Connect your keyboard to your computer or phone.Do this again if your keyboard ever stops working randomly.This will reconfigure your bluetooth module for keyboard use.Hit shift + ctrl + esc on your MODIFIED keyboard.
Add Adafruit board support in Arduino IDEĬonfigure and connect Arduino Button Grid.
Download the adafruit Bluefruit library. I usually charge mine when I leave work. You can charge the keyboard through the micro USB on the bluefruit. I can run a 12 hour work day with stock bluetooth power settings and medium backlight with no problems. I haven't tested my battery life with 6000mah battery nor have I measured the power consumption( multimeter broken :( ). Battery life depends on the size of your battery, power consumption of your keyboard, and the power level of your bluetooth. Plug the micro USB into the keyboard and double stick tape the electronics. Solder all batteries in PARALLEL to the trinket backpack. Solder the Data ( - ) pin(PS2 data) of the micro USB to pin 3 on the Bluefruit micro. Solder the Data ( + ) pin(PS2 clk) of the micro USB to pin 2 on the Bluefruit micro. Solder the micro USB power connections to ground and 3.3v on the Bluefruit Micro. Solder the trinket backpack to the Bluefruit micro. (Optional) Cut the switch trace on the trinket backpack and solder a micro switch between the two contacts. Solder the 500mah jumper on the trinket backpack for batteries larger than 500mah. Again, Eric took care of all the mechanical design. And, we'd add some 'Wow' factor with WS2812 LED strips, relay control of a fog machine and crazy sound effects. Arcade buttons would be integrated into the system using a 32u4 based Arduino to inject keystrokes to the computer to mimic the use of hot keys. In this video, I show how I built a fully customizable keypad for my CNC using mechanical switches, an Arduino and a custom PCB manufactured by PCBWay, who y.
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