Ampselector
ravinder-Olivier·ampselector·pcb/ampselector.kicad_pcb
About the Ampselector PCB
Ampselector is an open source PCB design by ravinder-Olivier, published on GitHub. It is a 2-layer board measuring 85 × 100 mm, with 22 components from 5 distinct parts.
Other key parts include the MOUDLE-SEEEDUINO-XIAO and ER_OLEDM0.91_1x-I2C. By type, the board carries 10 switches, 10 diodes and 2 ICs.
It belongs with the audio, keyboards and displays & leds designs in this gallery.
From the project
Guitar Rig 7 centric macropad
Ampselector is a 8 key + two encoder macropad designed to be used for Guitar Rig 7. For actions such as switching between amps or effects presets.
Built using a RP2040 microcontroller in the form of the SEEED STUDIO XIAO, and powered by custom software built on QMK.

Main components on the Ampselector
Ampselector bill of materials (BOM)
22 components, 5 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MOUDLE-SEEEDUINO-XIAO | XIAO-Generic-Hybrid-14P-2.54-21X17.8MM | U1 |
| 1 | ER_OLEDM0.91_1x-I2C | ER_OLEDM0.91_1x-I2C | U2 |
| 8 | SW_Push | SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 |
| 2 | RotaryEncoder_Switch | RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW9, SW10 |
| 10 | 1N4148 | D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D8 +2 |
Ampselector design files
The KiCad project lives in the ravinder-Olivier/ampselector repository on GitHub; these links point at the commit this page was built from.
Ampselector: common questions
How big is the Ampselector PCB?
The Ampselector measures 85 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Ampselector?
22 components, from 5 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Ampselector design files?
From the ravinder-Olivier/ampselector repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Ampselector design in my own project?
The repository has no license, so all rights stay with ravinder-Olivier. Use it as a reference, and ask the author before reusing the design.
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