Neotron-Pico
Neotron-Compute·Neotron-Pico·Kicad/neotron-pico.kicad_pcb
About the Neotron-Pico PCB
Neotron-Pico is an open source RP2040/RP2350 PCB design by Neotron-Compute, published on GitHub. It is a 4-layer board measuring 243.8 × 171.5 mm, with 220 components from 65 distinct parts.
Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the MCP23S17, 74HC138D,653, SN74AHC1G04DBVR, THS7316 and TPD7S019-15DBQR. By type, the board carries 96 resistors, 50 capacitors, 23 connectors, 13 ICs, 8 jumpers and 8 diodes.
It belongs with the audio designs in this gallery.
From the project
A Neotron powered by the Raspberry Pi Pico
The Neotron Pico is based around the idea of the Neotron-32, but using a low-cost Raspberry Pi Pico instead of a Texas Instuments Tiva-C Launchpad. It also stretches out to full micro-ATX size, and adds more expansion slots so that you can easily design and add your own peripherals.
Sometimes I have kits on Tindie, and sometimes there are kits or complete boards on Elecrow.

Main components on the Neotron-Pico
Neotron-Pico bill of materials (BOM)
220 components, 65 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Pico Raspberry Pi | RPi_Pico_SMD_TH | U201 |
| 1 | MCP23S17 MCP23S17_SO Microchip | SOIC-28W_7.5x17.9mm_P1.27mm | U301 |
| 1 | 74HC138D,653 74HC138 Nexperia | SOIC-16_3.9x9.9mm_P1.27mm | U302 |
| 1 | SN74AHC1G04DBVR 74AHC1G04 Texas Instruments | SOT-23-5_HandSoldering | U303 |
| 1 | THS7316 Texas Instruments | SOIC-8_3.9x4.9mm_P1.27mm | U401 |
| 1 | TPD7S019-15DBQR TPD7S019 Texas Instruments | SSOP-16_3.9x4.9mm_P0.635mm | U402 |
| 1 | TLV320AIC23BPW Texas Instruments | TSSOP-28_4.4x9.7mm_P0.65mm | U801 |
| 1 | STX-4335-5BGP-S1 Kycon | STX-4335-5BGP-S1 | U802 |
| 1 | STM32F030K6T6 ST | LQFP-32_7x7mm_P0.8mm | U1001 |
| 1 | DS1307Z+ Maxim | SOIC-8_3.9x4.9mm_P1.27mm | U1201 |
| 1 | K7805-3AR3 DC-DC Module Mornsun | K78xx-3AR3 | U1301 |
| 1 | AMS1117-3.3 AMS | SOT-223-3_TabPin2 | U1302 |
| 1 | HT7533-1 HT75xx-1-SOT89 Holtek | SOT-89-3 | U1303 |
| 1 | DMG2305UX-13 DMG2305UX Diodes Inc | SOT-23 | Q201 |
| 2 | 2N7002 JSCJ | SOT-23 | Q1001, Q1002 |
| 2 | SS8050 JSCJ | SOT-23 | Q1003, Q1303 |
| 1 | AO3401A Alpha and Omega | SOT-23 | Q1301 |
| 1 | SS8550 Y2 SS8550 JSCJ | SOT-23 | Q1302 |
| 1 | X322512MSB4SI 12M 20pF Yangxing Tech | Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSoldering | Y801 |
| 1 | Q13FC1350000400 32,768 Hz Seiko Epson | Crystal_SMD_3215-2Pin_3.2x1.5mm | Y1201 |
Show 45 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ICD15S13E4GV00LF DE15HD Amphenol | Amphenol_ICD15S13E4GV00LF | J401 |
| 3 | ~ Conn_01x04 ~ | PinHeader_1x04_P2.54mm_Vertical | J801, J803, J1006 |
| 1 | ~ Conn_02x05 ~ | PinHeader_2x05_P2.54mm_Vertical | J802 |
| 1 | ~ Conn_01x06 ~ | PinHeader_1x06_P2.54mm_Vertical | J901 |
| 4 | 5-5530843-0 Neotron-Expansion-Slot TE | Neotron-Expansion-Slot | J902, J903, J904, J905 |
| 3 | ~ Conn_01x09 ~ | PinHeader_1x09_P2.54mm_Vertical | J906, J907, J908 |
| 1 | ~ Conn_01x05 ~ | PinHeader_1x05_P2.54mm_Vertical | J1001 |
| 4 | ~ Conn_01x02 ~ | PinHeader_1x02_P2.54mm_Vertical | J1002, J1003, J1004, J1005 |
| 1 | KMDGX-6S/6S-S4N Double-mini-DIN-6 Kycon | Double_mini-DIN_6 | J1007 |
| 1 | GSD090012SEU SD_Card Amphenol | Amphenol_GSD090012SEU | J1101 |
| 1 | PJ-063AH Jack 2.1mm 6.3mm CUI | BarrelJack_CUI_PJ-063AH_Horizontal | J1301 |
| 1 | ~ Conn_02x02S ~ | PinSocket_2x02_P2.54mm_Vertical | J1302 |
| 1 | ~ Conn_01x04S ~ | PinSocket_1x04_P2.54mm_Vertical | J1303 |
| 1 | BH-80A-1 CR2032 Adam Tech | BatteryHolder_Keystone_103_1x20mm | BT1201 |
| 1 | 0ZRS0200FF1E 32V 2A PTC Bel Fuse | Bel Fuse 0ZRS0200FF | F1301 |
| 2 | ~ Jumper ~ | PinHeader_1x02_P2.54mm_Vertical | JP201, JP1001 |
| 6 | ~ Bridge ~ | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP401, JP402, JP403, JP404, JP1201, JP1202 |
| 2 | MJTP1230 SW_Push APEM Inc | SW_PUSH_6mm | SW1001, SW1002 |
| 5 | ~ TestPoint ~ | TestPoint_Bridge_Pitch2.54mm_Drill1.0mm | TP101, TP102, TP103, TP104, TP105 |
| 1 | ~ PTH ~ | TestPoint_THTPad_D1.5mm_Drill0.7mm | TP1301 |
| 6 | 17-21SUYC/TR8 LED Hubei KENTO | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D301, D302, D303, D304, D1001, D1002 |
| 2 | ZMM5V6-M ZMM5V6 Semtech | D_MiniMELF | D1301, D1302 |
| 2 | GZ2012D601TF 330R@100MHz Sunlord | L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | FB801, FB802 |
| 1 | 13R223C 22uH Murata | L_Radial_D9.5mm_P5.00mm_Fastron_07HVP | L1301 |
| 11 | ~ DNF ~ | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C201, C202, C303, C901, C902, C903, C904, C905 +3 |
| 18 | CL21A106KAYNNNE 10u Samsung | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C301, C302, C401, C403, C404, C405, C802, C803 +10 |
| 1 | CL21B224KBFNNNE 220n Samsung | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C402 |
| 5 | ECA-1HM101 100u Panasonic | CP_Radial_D8.0mm_P5.00mm | C801, C808, C809, C1301, C1302 |
| 5 | CL21B105KBFNNNE 1u Samsung | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C804, C805, C810, C811, C818 |
| 3 | CL21C470JBANNNC 47p Samsung | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C812, C813, C819 |
| 1 | CC0805KRX7R9BB104 100n Yageo | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C814 |
| 2 | CL21C220JBANNNC 22p Samsung | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C816, C817 |
| 1 | CL21B103KCANNNC 10n Samsung | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1003 |
| 3 | CL21A226MAYNNNE 22u Samsung | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1303, C1304, C1305 |
| 20 | 0805W8F2001T5E 2k Uniroyal | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R201, R202, R405, R406, R501, R502, R503, R504 +12 |
| 12 | 0805W8F0000T5E 0R Uniroyal | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R203, R204, R301, R805, R806, R812, R901, R902 +4 |
| 20 | 0805W8F1002T5E 10k Uniroyal | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R302, R303, R304, R305, R306, R307, R312, R1001 +12 |
| 24 | 0805W8F1001T5E 1k Uniroyal | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R308, R309, R310, R311, R505, R506, R507, R508 +16 |
| 3 | 0805W8F750JT5E 75 Uniroyal | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R401, R402, R403 |
| 1 | ~ DNF ~ | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R404 |
| 3 | 0805W8F5600T5E 560 Uniroyal | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R510, R610, R710 |
| 4 | 0805W8F1003T5E 100k Uniroyal | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R801, R802, R803, R804 |
| 4 | 0805W8F4701T5E 4k7 Uniroyal | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R807, R808, R809, R810 |
| 4 | 0805W8F3000T5E 300 Uniroyal | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1008, R1009, R1010, R1011 |
| 1 | 0805W8F330JT5E 33R Uniroyal | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1012 |
Neotron-Pico design files
The KiCad project lives in the Neotron-Compute/Neotron-Pico repository on GitHub; these links point at the commit this page was built from.
- LayoutKicad/neotron-pico.kicad_pcb
- SchematicKicad/neotron-pico.kicad_sch
Neotron-Pico: common questions
What microcontroller does the Neotron-Pico use?
The Neotron-Pico is built around the Pico, from the RP2040/RP2350 family.
How big is the Neotron-Pico PCB?
The Neotron-Pico measures 243.8 × 171.5 mm, has 4 copper layers and is 1.61652 mm thick.
How many components are on the Neotron-Pico?
220 components, from 65 distinct parts. The full bill of materials is listed on this page.
Where can I download the Neotron-Pico design files?
From the Neotron-Compute/Neotron-Pico repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Neotron-Pico design in my own project?
The repository has no license, so all rights stay with Neotron-Compute. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Neotron-Pico 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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