# Round Console X ## Description Round Console X hardware control surface for the user’s self-developed Round Light Engine color grading software, based on Raspberry Pi Pico, OLED feedback, six encoders, three SPI optical trackball headers, MCP23017 expansion, and a one-sided PCB layout target. ## Project Details - **Owner:** kadeejark98 - **Created:** 6/21/2026 - **Last Updated:** 6/21/2026 - **Visibility:** Public ## Key Components ### DS1 — [OLED 0.91" 128x32 I2C](https://www.flux.ai/vasy_skral/oled-091-128x32-i2c~kl.md) - Part Type: Display Device - Role: Display **Pins:** - 5V [pin 3] - GND [pin 4] - SCL [pin 2] - SDA [pin 1] ### J1 — [Pin Header 01x08 2.54mm Horizontal](https://www.flux.ai/adrian95/pin-header-01x08-254mm-horizontal~0e0.md) - Role Details: Lift optical trackball sensor header - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] ### J2 — [Pin Header 01x08 2.54mm Horizontal](https://www.flux.ai/adrian95/pin-header-01x08-254mm-horizontal~0e0.md) - Role Details: Gamma optical trackball sensor header - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] ### J3 — [Pin Header 01x08 2.54mm Horizontal](https://www.flux.ai/adrian95/pin-header-01x08-254mm-horizontal~0e0.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Gain optical trackball sensor header - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] ### SW1 — [PEC11R-4220F-S0024](https://www.flux.ai/jecstronic/pec11r-4220f-s0024~5rr.md) - Part Type: Sensor - Manufacturer Name: Bourns Inc. - Role Details: Contrast control - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: PEC11R-4220F-S0024 - Datasheet URL: https://www.bourns.com/docs/Product-Datasheets/PEC11R.pdf - Role: Rotary Encoder **Pins:** - 1 [pin 1] - 2 [pin 2] - A [pin A1] - B [pin B1] - C [pin C1] - MH1 [pin MH1] - MH2 [pin MH2] ### SW2 — [PEC11R-4220F-S0024](https://www.flux.ai/jecstronic/pec11r-4220f-s0024~5rr.md) - Datasheet URL: https://www.bourns.com/docs/Product-Datasheets/PEC11R.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: PEC11R-4220F-S0024 - Role Details: Pivot control - Role: Rotary Encoder - Manufacturer Name: Bourns Inc. - Part Type: Sensor **Pins:** - 1 [pin 1] - 2 [pin 2] - A [pin A1] - B [pin B1] - C [pin C1] - MH1 [pin MH1] - MH2 [pin MH2] ### SW3 — [PEC11R-4220F-S0024](https://www.flux.ai/jecstronic/pec11r-4220f-s0024~5rr.md) - Manufacturer Part Number: PEC11R-4220F-S0024 - License: https://creativecommons.org/licenses/by/4.0/ - Role: Rotary Encoder - Manufacturer Name: Bourns Inc. - Part Type: Sensor - Datasheet URL: https://www.bourns.com/docs/Product-Datasheets/PEC11R.pdf - Role Details: Saturation control **Pins:** - 1 [pin 1] - 2 [pin 2] - A [pin A1] - B [pin B1] - C [pin C1] - MH1 [pin MH1] - MH2 [pin MH2] ### SW4 — [PEC11R-4220F-S0024](https://www.flux.ai/jecstronic/pec11r-4220f-s0024~5rr.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: PEC11R-4220F-S0024 - Role Details: Hue control - Part Type: Sensor - Role: Rotary Encoder - Manufacturer Name: Bourns Inc. - Datasheet URL: https://www.bourns.com/docs/Product-Datasheets/PEC11R.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] - A [pin A1] - B [pin B1] - C [pin C1] - MH1 [pin MH1] - MH2 [pin MH2] ### SW5 — [PEC11R-4220F-S0024](https://www.flux.ai/jecstronic/pec11r-4220f-s0024~5rr.md) - Datasheet URL: https://www.bourns.com/docs/Product-Datasheets/PEC11R.pdf - Manufacturer Name: Bourns Inc. - Role: Rotary Encoder - Role Details: LumMix control - Part Type: Sensor - Manufacturer Part Number: PEC11R-4220F-S0024 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] - A [pin A1] - B [pin B1] - C [pin C1] - MH1 [pin MH1] - MH2 [pin MH2] ### SW6 — [PEC11R-4220F-S0024](https://www.flux.ai/jecstronic/pec11r-4220f-s0024~5rr.md) - Role: Rotary Encoder - Datasheet URL: https://www.bourns.com/docs/Product-Datasheets/PEC11R.pdf - Manufacturer Part Number: PEC11R-4220F-S0024 - Role Details: Tint control - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Bourns Inc. - Part Type: Sensor **Pins:** - 1 [pin 1] - 2 [pin 2] - A [pin A1] - B [pin B1] - C [pin C1] - MH1 [pin MH1] - MH2 [pin MH2] ### U1 — [Raspberry Pi Pico](https://www.flux.ai/baronunread/raspberry-pi-pico~j7.md) - Role: Main Controller - Datasheet URL: https://datasheets.raspberrypi.com/pico/pico-datasheet.pdf - Manufacturer Part Number: SC0915 - Part Type: Evaluation Boards - Manufacturer Name: Raspberry Pi **Pins:** - ~RUN [pin 30] - 3V3_EN [pin 37] - 3V3_OUT [pin 36] - ADC_VREF [pin 35] - AGND [pin 33] - GND [pin 13] - GND [pin D2] - GND [pin 23] - GND [pin 28] - GND [pin 18] - GND [pin 3] - GND [pin 38] - GND [pin 8] - GP0 [pin 1] - GP1 [pin 2] - GP10 [pin 14] - GP11 [pin 15] - GP12 [pin 16] - GP13 [pin 17] - GP14 [pin 19] - GP15 [pin 20] - GP16 [pin 21] - GP17 [pin 22] - GP18 [pin 24] - GP19 [pin 25] - GP2 [pin 4] - GP20 [pin 26] - GP21 [pin 27] - GP22 [pin 29] - GP26 [pin 31] - GP27 [pin 32] - GP28 [pin 34] - GP3 [pin 5] - GP4 [pin 6] - GP5 [pin 7] - GP6 [pin 9] - GP7 [pin 10] - GP8 [pin 11] - GP9 [pin 12] - SWCLK [pin D1] - SWDIO [pin D3] - VBUS [pin 40] - VSYS [pin 39] ### U2 — [MCP23017-E-SP](https://www.flux.ai/jecstronic/mcp23017-e-sp~er.md) - Manufacturer Name: Microchip - Role: I/O Expander - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: http://www.microchip.com/mymicrochip/filehandler.aspx?ddocname=en023709 - Manufacturer Part Number: MCP23017-E/SP **Pins:** - ~RESET~ [pin 18] - A0 [pin 15] - A1 [pin 16] - A2 [pin 17] - GPA0 [pin 21] - GPA1 [pin 22] - GPA2 [pin 23] - GPA3 [pin 24] - GPA4 [pin 25] - GPA5 [pin 26] - GPA6 [pin 27] - GPA7 [pin 28] - GPB0 [pin 1] - GPB1 [pin 2] - GPB2 [pin 3] - GPB3 [pin 4] - GPB4 [pin 5] - GPB5 [pin 6] - GPB6 [pin 7] - GPB7 [pin 8] - INTA [pin 20] - INTB [pin 19] - NC [pin 14] - NC [pin 11] - SCK [pin 12] - SDA [pin 13] - VDD [pin 9] - VSS [pin 10] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/kadeejark98/round-console-x~qq](https://www.flux.ai/kadeejark98/round-console-x~qq).* --- *Generated from [https://www.flux.ai/kadeejark98/round-console-x~qq](https://www.flux.ai/kadeejark98/round-console-x~qq)*