Prosoma
dialgorithm·prosoma·KiCad/prosoma.kicad_pcb
About the Prosoma PCB
Prosoma is an open source RP2040/RP2350 PCB design by dialgorithm, published on GitHub. It is a 4-layer board measuring 129 × 94.5 mm, with 223 components from 122 distinct parts.
Its main chip is the RP2040 1, from the RP2040/RP2350 family. Other key parts include the RP1 W25Q16JVUXIQ_TR, RP1 NCP115ASN330T2G, RP1 74LV4051BQ_115, OPA333xxDBV and RP2040 2. By type, the board carries 66 resistors, 55 connectors, 44 capacitors, 38 diodes, 10 ICs and 4 switches.
It belongs with the robotics & motion designs in this gallery.
From the project
36 channel servo controller board with 2 rp2040s
- dual RP2040 microcontrollers, each independently driving 18 of the 36 servo channels - 36x WS2812B addressable RGB LEDs, one per channel, in two 18-LED chains (one per RP2040) for per-channel status indication - 17-pin GPIO extension headers, one per RP2040, breaking out spare pins for future expansion
prosoma is built around two RP2040 microcontrollers running in parallel, each one fully responsible for 18 servo channels.

Main components on the Prosoma
Prosoma bill of materials (BOM)
223 components, 122 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | RP2040 1 | QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U1 |
| 1 | RP1 W25Q16JVUXIQ_TR | IC_W25Q16JVUXIQ_TR | U2 |
| 1 | RP1 NCP115ASN330T2G | SOT95P275X110-5N | U3 |
| 1 | RP1 74LV4051BQ_115 | DHVQFN16_SOT763-1_NO_PAD | U4 |
| 2 | OPA333xxDBV | SOT-23-5 | U5, U9 |
| 1 | RP2040 2 | QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U6 |
| 1 | RP2 NCP115ASN330T2G | SOT95P275X110-5N | U7 |
| 1 | RP2 W25Q16JVUXIQ_TR | IC_W25Q16JVUXIQ_TR | U8 |
| 1 | RP2 74LV4051BQ_115 | DHVQFN16_SOT763-1_NO_PAD | U10 |
| 2 | SISA40DN-T1-GE3 | Vishay_PowerPAK_1212-8_Single | Q1, Q2 |
| 1 | RP1 ABM8-272-T3 | Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSoldering | Y1 |
| 1 | RP2 ABM8-272-T3 | Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSoldering | Y2 |
| 1 | RP1 USB C | USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
| 1 | SERVO_1-16 | PHOENIX_1714971 | J2 |
| 1 | Servo 1 | PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | Servo 2 | PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | Servo 3 | PinHeader_1x03_P2.54mm_Vertical | J5 |
| 1 | 4 | PinHeader_1x03_P2.54mm_Vertical | J6 |
| 1 | 5 | PinHeader_1x03_P2.54mm_Vertical | J7 |
| 1 | Servo 6 | PinHeader_1x03_P2.54mm_Vertical | J8 |
Show 102 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Servo 7 | PinHeader_1x03_P2.54mm_Vertical | J9 |
| 1 | Servo 8 | PinHeader_1x03_P2.54mm_Vertical | J10 |
| 1 | 9 | PinHeader_1x03_P2.54mm_Vertical | J11 |
| 1 | Servo 10 | PinHeader_1x03_P2.54mm_Vertical | J12 |
| 1 | Servo 11 | PinHeader_1x03_P2.54mm_Vertical | J13 |
| 1 | 12 | PinHeader_1x03_P2.54mm_Vertical | J14 |
| 1 | Servo 13 | PinHeader_1x03_P2.54mm_Vertical | J15 |
| 1 | 14 | PinHeader_1x03_P2.54mm_Vertical | J16 |
| 1 | 15 | PinHeader_1x03_P2.54mm_Vertical | J17 |
| 1 | Servo 16 | PinHeader_1x03_P2.54mm_Vertical | J18 |
| 1 | Servo 17 | PinHeader_1x03_P2.54mm_Vertical | J19 |
| 1 | 18 | PinHeader_1x03_P2.54mm_Vertical | J20 |
| 1 | se1 | PinHeader_1x03_P2.54mm_Vertical | J21 |
| 1 | se2 | PinHeader_1x03_P2.54mm_Vertical | J22 |
| 1 | se3 | PinHeader_1x03_P2.54mm_Vertical | J23 |
| 1 | se4 | PinHeader_1x03_P2.54mm_Vertical | J24 |
| 1 | se5 | PinHeader_1x03_P2.54mm_Vertical | J25 |
| 1 | se6 | PinHeader_1x03_P2.54mm_Vertical | J26 |
| 1 | RP1 Extension | PinHeader_1x17_P2.54mm_Vertical | J27 |
| 1 | RP2 USB C | USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J28 |
| 1 | SERVO_19-36 | PHOENIX_1714971 | J29 |
| 1 | RP2 Extension | PinHeader_1x17_P2.54mm_Vertical | J30 |
| 1 | 19 | PinHeader_1x03_P2.54mm_Vertical | J31 |
| 1 | 20 | PinHeader_1x03_P2.54mm_Vertical | J32 |
| 1 | Servo 21 | PinHeader_1x03_P2.54mm_Vertical | J33 |
| 1 | Servo 22 | PinHeader_1x03_P2.54mm_Vertical | J34 |
| 1 | Servo 23 | PinHeader_1x03_P2.54mm_Vertical | J35 |
| 1 | Servo 24 | PinHeader_1x03_P2.54mm_Vertical | J36 |
| 1 | 25 | PinHeader_1x03_P2.54mm_Vertical | J37 |
| 1 | 26 | PinHeader_1x03_P2.54mm_Vertical | J38 |
| 1 | 27 | PinHeader_1x03_P2.54mm_Vertical | J39 |
| 1 | Servo 28 | PinHeader_1x03_P2.54mm_Vertical | J40 |
| 1 | Servo 29 | PinHeader_1x03_P2.54mm_Vertical | J41 |
| 1 | 30 | PinHeader_1x03_P2.54mm_Vertical | J42 |
| 1 | Servo 31 | PinHeader_1x03_P2.54mm_Vertical | J43 |
| 1 | Servo 32 | PinHeader_1x03_P2.54mm_Vertical | J44 |
| 1 | 33 | PinHeader_1x03_P2.54mm_Vertical | J45 |
| 1 | Servo 34 | PinHeader_1x03_P2.54mm_Vertical | J46 |
| 1 | Servo 35 | PinHeader_1x03_P2.54mm_Vertical | J47 |
| 1 | 36 | PinHeader_1x03_P2.54mm_Vertical | J48 |
| 1 | se7 | PinHeader_1x03_P2.54mm_Vertical | J49 |
| 1 | se8 | PinHeader_1x03_P2.54mm_Vertical | J50 |
| 1 | se9 | PinHeader_1x03_P2.54mm_Vertical | J51 |
| 1 | se10 | PinHeader_1x03_P2.54mm_Vertical | J52 |
| 1 | se11 | PinHeader_1x03_P2.54mm_Vertical | J53 |
| 1 | se12 | PinHeader_1x03_P2.54mm_Vertical | J54 |
| 1 | main connector | PinHeader_1x03_P2.54mm_Vertical | J55 |
| 1 | RP1 RESET | SW_SPST_TL3305A | SW1 |
| 1 | RP1 BOOT | SW_SPST_TL3305A | SW2 |
| 1 | RP2 RESET | SW_SPST_TL3305A | SW3 |
| 1 | RP2 BOOT | SW_SPST_TL3305A | SW4 |
| 2 | NSR0530HT1G | D_SOD-323_HandSoldering | D1, D20 |
| 1 | 1 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D2 |
| 1 | 2 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D3 |
| 1 | 3 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D4 |
| 1 | Servo 4 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D5 |
| 1 | Servo 5 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D6 |
| 1 | 6 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D7 |
| 1 | 7 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D8 |
| 1 | 8 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D9 |
| 1 | Servo 9 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D10 |
| 1 | 10 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D11 |
| 1 | 11 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D12 |
| 1 | Servo 12 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D13 |
| 1 | 13 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D14 |
| 1 | Servo 14 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D15 |
| 1 | Servo 15 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D16 |
| 1 | 16 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D17 |
| 1 | 17 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D18 |
| 1 | Servo 18 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D19 |
| 1 | Servo 19 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D21 |
| 1 | Servo 28 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D22 |
| 1 | 21 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D23 |
| 1 | 22 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D24 |
| 1 | 23 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D25 |
| 1 | 24 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D26 |
| 1 | Servo 22 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D27 |
| 1 | Servo 31 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D28 |
| 1 | Servo 23 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D29 |
| 1 | 28 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D30 |
| 1 | 29 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D31 |
| 1 | Servo 33 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D32 |
| 1 | 31 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D33 |
| 1 | 32 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D34 |
| 1 | Servo 26 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D35 |
| 1 | 34 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D36 |
| 1 | 35 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D37 |
| 1 | Servo 36 | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D38 |
| 2 | FerriteBead | L_1206_3216Metric_Pad1.22x1.90mm_HandSolder | FB1, FB2 |
| 20 | 100uF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2, C3, C4, C5, C6, C8, C9 +12 |
| 10 | 1uF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C7, C11, C15, C16, C18, C30, C31, C34 +2 |
| 4 | 10pF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C13, C14, C37, C38 |
| 8 | 100nF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C17, C20, C21, C22, C40, C42, C43, C44 |
| 2 | 220uF 20V A768KE227M1DLAE029 | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C19, C41 |
| 4 | 27.4k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R2, R35, R36 |
| 10 | 10k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R3, R4, R6, R7, R14, R34, R37, R38 +2 |
| 6 | 1k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R5, R8, R12, R39, R43, R45 |
| 4 | 5.1k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R9, R10, R41, R42 |
| 2 | 68k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R11, R46 |
| 2 | 0.003 WSL10203L000FEA | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R13, R44 |
| 2 | 3.9k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R15, R48 |
| 36 | 180 | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R16, R17, R18, R19, R20, R21, R22, R23 +28 |
Prosoma design files
The KiCad project lives in the dialgorithm/prosoma repository on GitHub; these links point at the commit this page was built from.
- LayoutKiCad/prosoma.kicad_pcb
- SchematicKiCad/prosoma.kicad_sch
- BOMbom.csv
Prosoma: common questions
What microcontroller does the Prosoma use?
The Prosoma is built around the RP2040 1, from the RP2040/RP2350 family.
How big is the Prosoma PCB?
The Prosoma measures 129 × 94.5 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Prosoma?
223 components, from 122 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 Prosoma design files?
From the dialgorithm/prosoma 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 Prosoma design in my own project?
The repository has no license, so all rights stay with dialgorithm. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Prosoma without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.
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