Neapolitan
About the Neapolitan PCB
Neapolitan is an open source PCB design by Josephrp, published on GitHub under the Custom license license. It is a board measuring 120 × 75 mm, with 290 components from 111 distinct parts.
Other key parts include the SKY13350, RX_LOWPASS_FILTER, RFFC5072, RX_HIGHPASS_FILTER and SKY13317. By type, the board carries 120 capacitors, 66 connectors, 42 resistors, 21 ICs, 19 inductors and 8 diodes.
It belongs with the rf & radio designs in this gallery.
From the project
Meshtonic H4M Companion — ESP32-S3 carrier for PortaPack H4M / Mayhem with multi-slot LoRa and standalone Meshtastic
Copyright 2012 - 2016 Great Scott Gadgets
This is a free hardware design; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version.
This design is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
Main components on the Neapolitan
Neapolitan bill of materials (BOM)
290 components, 111 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 7 | SKY13350 | GSG-SKY13350-385LF | U1, U2, U5, U6, U7, U10, U11 |
| 1 | RX_LOWPASS_FILTER | GSG-LP0603 | U3 |
| 1 | RFFC5072 | GSG-QFN32 | U4 |
| 1 | RX_HIGHPASS_FILTER | GSG-HP-DEA | U8 |
| 3 | SKY13317 | GSG-SKY13317-373LF | U9, U12, U14 |
| 2 | MGA-81563 | GSG-SOT363 | U13, U25 |
| 1 | TCA6424A | QFN32-5 | U15 |
| 1 | TCR2EF | SOT25 | U16 |
| 1 | MAX2837 | GSG-QFN48-6 | U17 |
| 1 | 74LVC1G14 | SOT353-1 | U18 |
| 1 | SI5351C | GSG-QFN20-4 | U19 |
| 1 | AP2553W6-7 | SOT457 | U20 |
| 6 | MOSFET_P | SOT23GDS | Q1, Q2, Q3, Q5, Q6, Q7 |
| 1 | GSG-XTAL4PIN | GSG-XTAL3.2x2.5mm | X1 |
| 1 | FOX924B | XTAL5.0x3.2mm | X2 |
| 1 | KT2520 | KT2520K | X3 |
| 1 | OH4 | OH4 | X4 |
| 1 | USB-MICRO-B | GSG-USB-MICROB-FCI-10103592-EXT | J1 |
| 1 | RF-SHIELD-FRAME | GSG-SHIELD-BMI-S-230 | J2 |
| 1 | RF-SHIELD-COVER | GSG-NULL-MODULE | J3 |
Show 91 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 6 | MOUNTING_HOLE | GSG-HOLE126MIL-COPPER | J4, J5, J6, J7, J8, J9 |
| 1 | GND_CLIP | GSG-TEST-POINT-S1751-46R | J10 |
| 1 | BARREL_JACK | CUI_PJ-102[AB]H | J11 |
| 1 | !IO_INT | GSG-TESTPOINT-50MIL | P1 |
| 1 | !IO_RESET | GSG-TESTPOINT-50MIL | P2 |
| 1 | ANT_FAULT | GSG-TESTPOINT-50MIL | P3 |
| 1 | ANTENNA | GSG-SMA-73251-2120 | P4 |
| 1 | LEDS | GSG-HEADER-2x3 | P5 |
| 1 | GPO4 | GSG-TESTPOINT-50MIL | P6 |
| 1 | GPO2 | GSG-TESTPOINT-50MIL | P7 |
| 1 | BASEBAND | GSG-HEADER-2x8 | P9 |
| 1 | GPO1 | GSG-TESTPOINT-50MIL | P13 |
| 1 | XCVR_CLKOUT | GSG-TESTPOINT-50MIL | P14 |
| 1 | INTR | GSG-TESTPOINT-50MIL | P15 |
| 1 | GPO6 | GSG-TESTPOINT-50MIL | P17 |
| 1 | OEB | GSG-TESTPOINT-50MIL | P18 |
| 1 | GPO3 | GSG-TESTPOINT-50MIL | P19 |
| 1 | GPIO | GSG-HEADER-2x11 | P20 |
| 1 | REF_IN | GSG-TESTPOINT-50MIL | P21 |
| 1 | I2S | GSG-HEADER-2x13 | P22 |
| 1 | MIXER_SDATA | GSG-TESTPOINT-50MIL | P27 |
| 1 | SD | GSG-HEADER-2x11 | P28 |
| 1 | MIXER_SCLK | GSG-TESTPOINT-50MIL | P31 |
| 1 | MIXER_ENX | GSG-TESTPOINT-50MIL | P32 |
| 1 | MIXER_RESETX | GSG-TESTPOINT-50MIL | P33 |
| 1 | MIX_BYPASS | GSG-TESTPOINT-50MIL | P34 |
| 1 | !MIX_BYPASS | GSG-TESTPOINT-50MIL | P35 |
| 1 | VAA | GSG-HEADER-1x2 | P36 |
| 1 | SSP0_SCK | GSG-TESTPOINT-50MIL | P39 |
| 1 | SSP0_MOSI | GSG-TESTPOINT-50MIL | P40 |
| 1 | SSP0_MISO | GSG-TESTPOINT-50MIL | P41 |
| 1 | TX | GSG-TESTPOINT-50MIL | P42 |
| 1 | RX | GSG-TESTPOINT-50MIL | P43 |
| 1 | HP | GSG-TESTPOINT-50MIL | P44 |
| 1 | LP | GSG-TESTPOINT-50MIL | P45 |
| 1 | TX_MIX_BP | GSG-TESTPOINT-50MIL | P46 |
| 1 | RX_MIX_BP | GSG-TESTPOINT-50MIL | P47 |
| 1 | TX_AMP | GSG-TESTPOINT-50MIL | P48 |
| 1 | RX_AMP | GSG-TESTPOINT-50MIL | P49 |
| 1 | AMP_BYPASS | GSG-TESTPOINT-50MIL | P50 |
| 1 | !TX_AMP_PWR | GSG-TESTPOINT-50MIL | P51 |
| 1 | !RX_AMP_PWR | GSG-TESTPOINT-50MIL | P52 |
| 1 | CS_XCVR | GSG-TESTPOINT-50MIL | P53 |
| 1 | TXENABLE | GSG-TESTPOINT-50MIL | P55 |
| 1 | RXENABLE | GSG-TESTPOINT-50MIL | P56 |
| 1 | XTAL2 | GSG-TESTPOINT-50MIL | P57 |
| 1 | RSSI | GSG-TESTPOINT-50MIL | P67 |
| 1 | SHIELD | GSG-HEADER-NOMARK-1x2 | P80 |
| 10 | GND | GSG-TESTPOINT-50MIL | P83, P84, P85, P86, P87, P88, P89, P90 +2 |
| 1 | MIX_IN_BALUN | GSG-B0310J50100AHF | T1 |
| 1 | MIX_OUT_BALUN | GSG-B0310J50100AHF | T2 |
| 1 | RX_BALUN | GSG-2500BL14M100 | T3 |
| 1 | TX_BALUN | GSG-2500BL14M100 | T4 |
| 1 | GSG-DIODE-TVS-BI | GSG-0402 | D1 |
| 1 | VAALED | LTST-S220 | D2 |
| 1 | BARREL_DIODE | SOD128 | D4 |
| 1 | RXLED | LTST-S220 | D5 |
| 1 | TXLED | LTST-S220 | D6 |
| 1 | VCCLED | LTST-S220 | D7 |
| 1 | VBUS2_DIODE | SOD128 | D8 |
| 1 | VIN_DIODE | SOD128 | D10 |
| 3 | FILTER | GSG-0805 | FB1, FB2, FB3 |
| 5 | DNP | GSG-0402 | L1, L4, L6, L8, L9 |
| 10 | 10uH | GSG-0603 | L2, L3, L5, L10, L11, L12, L13, L14 +2 |
| 1 | 6.2nH | GSG-0402 | L7 |
| 32 | 33pF | GSG-0402 | C1, C3, C5, C7, C10, C11, C16, C19 +24 |
| 14 | 10nF | GSG-0402 | C2, C4, C6, C71, C73, C74, C76, C87 +6 |
| 13 | 22pF | GSG-0402 | C8, C21, C32, C43, C48, C51, C75, C84 +5 |
| 35 | 100nF | GSG-0402 | C9, C17, C18, C20, C23, C25, C28, C31 +27 |
| 2 | 330pF | GSG-0402 | C12, C13 |
| 1 | 8p2 | GSG-0402 | C14 |
| 2 | 180pF | GSG-0402 | C15, C112 |
| 3 | 47pF | GSG-0402 | C26, C27, C116 |
| 6 | 100pF | GSG-0402 | C41, C42, C52, C70, C90, C160 |
| 5 | 1uF | GSG-0402 | C53, C69, C106, C161, C171 |
| 2 | 3pF | GSG-0402 | C104, C111 |
| 1 | 10uF | GSG-0805 | C105 |
| 1 | 3.3nF | GSG-0402 | C114 |
| 1 | DNP | GSG-0805 | C155 |
| 2 | DNP | GSG-0402 | C169, C170 |
| 4 | 470 | GSG-0402 | R1, R2, R7, R75 |
| 1 | 22k | GSG-0402 | R3 |
| 1 | 51k | GSG-0402 | R4 |
| 20 | 10k | GSG-0402 | R5, R6, R8, R10, R11, R13, R15, R16 +12 |
| 3 | 18k | GSG-0402 | R9, R12, R14 |
| 4 | 1k8 | GSG-0402 | R18, R27, R28, R74 |
| 1 | 0 | GSG-0402 | R20 |
| 4 | 470k | GSG-0603 | R22, R23, R30, R31 |
| 2 | 475 | GSG-0402 | R25, R26 |
| 1 | DNP | GSG-0805 | R35 |
| 1 | 1k | GSG-0402 | R73 |
Neapolitan design files
The KiCad project lives in the Josephrp/meshtonic repository on GitHub; these links point at the commit this page was built from.
Neapolitan: common questions
How big is the Neapolitan PCB?
The Neapolitan measures 120 × 75 mm and is 1.6002 mm thick.
How many components are on the Neapolitan?
290 components, from 111 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 Neapolitan design files?
From the Josephrp/meshtonic repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Neapolitan design in my own project?
It is published under Custom license, which limits how it may be reused; read the license before building on it.
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