The MacroPad plus is a versatile extension for your keyboard that has six programmable keys and a rotary encoder knob. These buttons and the knob can be configured to perform a variety of actions, such as triggering specific key combinations, mouse movements, and game controller inputs. You can easily modify the firmware used to operate the MacroPad to suit your needs.
Each button and knob on the MacroPad also has addressable LEDs (NeoPixels), which can be programmed in the same way as the keys. This lets you customize the colors, patterns, or animations of your device.
Connecting the MacroPad to your PC is easy - simply plug it in via USB. It's immediately recognized by your PC as an HID composite device, so no special drivers are needed. This makes the MacroPad a user-friendly and accessible option for anyone looking to enhance their keyboard's capabilities.
The CH552G is a low-cost, enhanced E8051 core microcontroller compatible with the MCS51 instruction set. It has an integrated USB 2.0 controller with full-speed data transfer (12 Mbit/s) and supports up to 64 byte data packets with integrated FIFO and direct memory access (DMA). The CH552G has a factory built-in bootloader so firmware can be uploaded directly via USB without the need for an additional programming device.
- Take the Gerber files and send them to a PCB manufacturer of your choosing. They will use these files to create the circuit board for your device.
- Once you have the PCB, you can start soldering the components onto it. Use the BOM (bill of materials) and schematic as a guide to make sure everything is connected correctly.
- Upload the firmware by following the instructions in the next section (see below).
- To create the case for your device, use the STL files with your 3D printer. Make sure to use transparent filament for the keycaps, knob, and ring.
- After printing, secure the PCB to the bottom of the case using three self-tapping M2x5mm screws.
- Next, glue the ring from the bottom into the circular recess in the top of the case.
- Finally, assemble the case. Place the keycaps onto the switches and the knob onto the rotary encoder. Your device is now ready to use!
