4 layers60 × 130 mm Parsnip, the printed circuit board in 3D

Parsnip

A portable LoRa communicator. Custom 4-layer PCB (ESP32-S3 + E22P-915M30S LoRa + NEO-M9N GNSS), designed in KiCad for 915 MHz.

Full screen GitHub .kicad_pcb

Size: 60 × 130 mm
Copper layers: 4
Thickness: 1.6 mm
Parts: 481
Nets: 291
Pads: 1,478
Tracks, vias: 4,323, 2,112
Pours: 1,472
Routed: Yes
KiCad: KiCad 10.99 (file 20261031)
Created: 1 Jun 2026
Updated: 3 Nov 2026

Overview

Parsnip is an open-source printed circuit board by LimesKey, from the LimesKey/parsnip-node repository on GitHub. It is a 4-layer board of 60 × 130 mm with 481 parts on 291 nets, routed with 4,323 tracks and 2,112 vias.

It is built around the 0900LP15B0063001E, LM61460AASQRJRRQ1 and WS2816B, with the HGC1206R7106K500NSPJ, TCC0603X5R106M350CT and TCC0402X7R105K250AT among its other parts. Its parts include 173 capacitors, 109 resistors, 18 diodes, 12 transistors and 6 ICs. It belongs with the radio and wireless boards and the ESP32 boards of this library.

Main components

README

README.md

parsnip-node

A battery-powered, portable Meshtastic/Meshcore node built around the ESP32-S3, an Ebyte E22P-915M30S LoRa front end, and a u-blox NEO-M9N GNSS receiver. Designed in KiCad, it targets 915 MHz operation in Canada under ISED RSS-247.

Overview

The goal is a self-contained LoRa node that pairs one of the longest range, best value LoRa modules, with an accurate GNSS reciever, running off two 21700 cells in series, to connect to other people on the LoRa mesh network community.

Schematic - v2

_{GNSS / active antenna}	_{LoRa front end}	_{Power rails}
_{Charger / BMS}	_{USB-C / PD}	_Peripherals

PCB - v2

parsnip-node PCB layout, all layers

3D Render - v2

parsnip-node board 3D render, front

In the field - v1

Assembled parsnip-node board on the bench

_{Assembled board}

_{Outdoor testing}

_{Outdoor testing, back}

Hardware

Part	Price
JLCPCB PCB w/ Assembly (to-be changed BOM)	$1098.04 CAD (est)
21700 Cells 18650batterystore.com	$40 CAD
3.7" E-Ink AliExpress	24$ CAD

Board

4-layer with ENIG, 60 x 130 mm
JLCPCB JLC04161H-7628 stackup, 2 oz copper outer, 2 oz copper inner
L1-L2 prepreg 0.2104 mm, Dk 4.4
RF: 0.36mm trace width for ~50 Ω CPWG on this stackup, ground rails stitched with 0.3 mm / 0.6 mm vias at roughly 1.5 to 2 mm pitch

ESP32-S3 GPIO pin map

Host: ESP32-S3-WROOM-1-N16R8 (U1). GPIO numbers are ESP32-S3 GPIO, not module pins.

LoRa - E22P-915M30S (U12)

Signal	GPIO
NSS	10
SCK	12
MOSI	11
MISO	13
BUSY	14
DIO1	4
NRST	40
EN	41

GNSS - NEO-M9N (U9)

Signal	GPIO
TXD	1
RXD	2
TIMEPULSE	3
EXTINT	48
SDA	8
SCL	9

Other peripherals

Function	GPIO
I2C SDA	8
I2C SCL	9
I2C IRQ	7
E-Ink BUSY	5
E-Ink RESET	6
E-Ink D/C	18
E-Ink CS	17
Bus CS	38
USB D- / D+	19 / 20
UART0 TX / RX	43 / 44
RTC 32 kHz xtal	15 / 16
BOOT	0
eFuse PG	39 / 42
EMI osc gate	47
Level shifter	46
Load switch	21
PSRAM (reserved)	35 / 36 / 37
VDD_SPI (reserved)	45

Firmware

Firmware is a Meshtastic fork tracked as the firmware submodule (LimesKey/firmware). Development uses VS Code with the pioarduino extension, which Meshtastic pins for ESP32-C6 / Arduino-ESP32 3.x support. A device variant declares the pin map above and the PA control lines so TX actually keys up. Unfortunately there are some extensive changes to the Meshtastic firmware in order to incorporate a SPI GNSS module, as this is not natively supported by Meshtastic.

bash

git clone --recurse-submodules https://github.com/LimesKey/parsnip-node.git

Category and platform

Radio and wireless ESP32

Topics

gnss hardawre jlcpcb lora mesh-networking meshcore meshtastic neo-m9n pcb sx1262 21700 esp32-s3

Show this board on your page

https://pcbkit.io/boards/LimesKey/parsnip-node

The board's own page, for a message or a post.

Source

Repository: LimesKey/parsnip-node
Board file: parsnip.kicad_pcb
Commit: 3aa62b2
Licence: Not stated

Parts

481

Qty	Value	Footprint	References
24	10uF	Capacitor_SMD:C_1206_3216Metric	C26, C27, C28, C29, C30, C32, C34, C35, C57, C59, C60, C63, C65, C71, C73, C74 +8
24	10uF	Capacitor_SMD:C_0603_1608Metric	C10, C11, C12, C16, C110, C122, C123, C124, C126, C127, C128, C137, C141, C143, C156, C168 +8
23	1uF	Capacitor_SMD:C_0402_1005Metric	C17, C18, C20, C25, C117, C118, C138, C140, C142, C163, C164, C176, C178, C179, C180, C182 +7
18	100nF	Capacitor_SMD:C_0402_1005Metric	C5, C19, C24, C49, C50, C51, C54, C61, C64, C66, C72, C116, C121, C131, C136, C184 +2
15	0	Resistor_SMD:R_0402_1005Metric	R5, R6, R12, R13, R14, R15, R18, R19, R32, R33, R34, R69, R73, R93, R134
15	10k	Resistor_SMD:R_0402_1005Metric	R7, R9, R35, R38, R46, R67, R71, R76, R92, R94, R101, R113, R119, R132, R135
14	100k	Resistor_SMD:R_0402_1005Metric	R27, R28, R30, R56, R79, R86, R91, R96, R105, R106, R108, R130, R131, R136
11	2.2uF	Capacitor_SMD:C_0402_1005Metric	C1, C2, C3, C4, C8, C9, C13, C104, C181, C183, C193
10	10uF	Capacitor_SMD:C_0805_2012Metric	C14, C38, C40, C42, C44, C48, C67, C68, C69, C70
8	10nF	Capacitor_SMD:C_0402_1005Metric	C21, C22, C23, C47, C98, C105, C132, C134
8	10uF	Capacitor_SMD:C_0402_1005Metric	C99, C100, C102, C103, C106, C107, C111, C130
8	22uF	Capacitor_SMD:C_0603_1608Metric	C155, C157, C165, C166, C167, C170, C171, C186
6	1k	Resistor_SMD:R_0402_1005Metric	R43, R45, R50, R53, R78, R99
6	33	Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder	R1, R2, R3, R4, R23, R60
6	ESDS314DBVR	Package_TO_SOT_SMD:SOT-23-5	D1, D2, D3, D26, D28, D29
6	Fiducial	Fiducial:Fiducial_1mm_Mask2mm	FID1, FID2, FID3, FID4, FID5, FID6
5	100	Resistor_SMD:R_0402_1005Metric	R44, R48, R59, R63, R103
5	10k	Resistor_SMD:R_0603_1608Metric	TH1, TH2, TH3, TH4, TH5
5	10k	Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder	R20, R24, R25, R26, R133
4	0.47uF	Capacitor_SMD:C_0402_1005Metric	C53, C55, C56, C58
4	2.2k	Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder	R21, R22, R68, R72
4	2.2nF	Capacitor_SMD:C_0402_1005Metric	C108, C109, C161, C162
4	2.2uF	Capacitor_SMD:C_0603_1608Metric	C125, C129, C135, C145
4	402k	Resistor_SMD:R_0603_1608Metric	R104, R107, R115, R121
4	MountingHole_Pad	MountingHole:MountingHole_2.2mm_M2_DIN965_Pad	H1, H2, H3, H4
3	1M	Resistor_SMD:R_0402_1005Metric	R29, R31, R102
3	1nF	Capacitor_SMD:C_0402_1005Metric	C112, C159, C160
3	22	Resistor_SMD:R_0402_1005Metric	R16, R17, R98
3	22uF	Capacitor_SMD:C_0805_2012Metric	C144, C147, C185
3	47nF	Capacitor_SMD:C_0402_1005Metric	C75, C76, C77
2	0	Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder	R75, R95
2	10	Resistor_SMD:R_0402_1005Metric	R42, R120
2	100	Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder	R111, R117
2	10nF	Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder	C96, C97
2	150	Resistor_SMD:R_1206_3216Metric	R39, R40
2	150	Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder	R80, R83
2	1A hold	Fuse:Fuse_0805_2012Metric	F1, F7
2	1N5819WS	Diode_SMD:D_SOD-323	D4, D27
2	1k	Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder	R123, R124
2	1pF	Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder	C113, C114
2	2	Resistor_SMD:R_0402_1005Metric	R49, R62
2	2.2	Resistor_SMD:R_0805_2012Metric	R112, R118
2	2.2	Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder	R64, R65
2	2.2k	Resistor_SMD:R_0402_1005Metric	R36, R37
2	2.2uF	Capacitor_SMD:C_0805_2012Metric	C62, C79
2	21700 Li-ion	easyeda2kicad:BAT-SMD_L82.5.5-W25-BH-21700-B1BJ001	BT1, BT2
2	22	Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder	R10, R11
2	220pF	Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder	C133, C139
2	22uF	Capacitor_SMD:C_1206_3216Metric	C119, C120
2	294	Resistor_SMD:R_0402_1005Metric	R57, R61
2	2N7002	Package_TO_SOT_SMD:SOT-23	Q14, Q15
2	330pF	Capacitor_SMD:C_0402_1005Metric	C33, C36
2	47pF	Capacitor_SMD:C_0402_1005Metric	C95, C115
2	5.1nH	Inductor_SMD:L_0402_1005Metric	L6, L7
2	5.6pF	Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder	C153, C158
2	6.04k	Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder	R109, R110
2	7pF	Capacitor_SMD:C_0402_1005Metric	C6, C7
2	AON7544	easyeda2kicad:PQFN-8_L3.1-W3.1-P0.65-LS3.3-BL	Q5, Q6
2	CSD15380F3	Package_DFN_QFN:Texas_PicoStar_DFN-3_0.69x0.60mm	Q2, Q4
2	CSD18512Q5B	Package_SON:VSONP-8-1EP_5x6_P1.27mm	Q7, Q8
2	CSD23280F3	Package_DFN_QFN:Texas_PicoStar_DFN-3_0.69x0.60mm	Q1, Q3
2	ESD501	Package_SON:Texas_DPY0002A_0.6x1mm_P0.65mm	D10, D13
2	LM61460AASQRJRRQ1	easyeda2kicad:VQFN-14-HR_L4.0-W3.5-TL_LM61460AASQRJRRQ1	U13, U14
2	NetTie_3	NetTie:NetTie-3_SMD_Pad0.5mm	NT1, NT2
2	PGOOD	TestPoint:TestPoint_Pad_D1.5mm	TP10, TP11
2	PZU12B2L	Diode_SMD:D_SOD-882	D24, D25
2	RB531SM-30	Diode_SMD:D_SOD-523	D15, D16
2	SI2308	Package_TO_SOT_SMD:SOT-23	Q9, Q10
2	SMA-KE-347-H13.5-1.6	Connector_Coaxial:SMA_Samtec_SMA-J-P-H-ST-EM1_EdgeMount	J11, J13
2	SolderJumper_2_Open	Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm	JP1, JP2
2	SolderJumper_3_Bridged12	Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm_NumberLabels	JP12, JP16
2	TPD1E10B06	Package_SON:Texas_DPY0002A_0.6x1mm_P0.65mm	D17, D19
2	TPS22945DCKR	Package_TO_SOT_SMD:SOT-353_SC-70-5	U6, U23
2	TVS2200DRV	Package_SON:WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm	D7, U3
2	VSYS	TestPoint:TestPoint_2Pads_Pitch2.54mm_Drill0.8mm	TP8, TP9
2	WS2816B	easyeda2kicad:LED-SMD_6P-L5.0-W5.0-TL	U18, U20
1	0	Resistor_SMD:R_0805_2012Metric	R100
1	0900LP15B0063001E	easyeda2kicad:FILTER-SMD_0805-8P-L2.0-W1.2-TL	FL2
1	10	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R74
1	10	Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder	R114

The 352 most common of 481 parts.

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Questions

How big is the Parsnip PCB?

It measures 60 × 130 mm and has 4 copper layers, 1.6 mm thick.

What parts does the Parsnip use?

481 parts, built around the 0900LP15B0063001E, LM61460AASQRJRRQ1, WS2816B and HGC1206R7106K500NSPJ. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Parsnip KiCad files?

From the LimesKey/parsnip-node repository on GitHub, at the commit this page was made from: the board is parsnip.kicad_pcb and its schematic block_diagram.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Parsnip design in my own project?

Its repository states no licence, so its author keeps all rights: ask LimesKey before reusing the design.

Overview

Main components

0900LP15B0063001E

LM61460AASQRJRRQ1

WS2816B

HGC1206R7106K500NSPJ

TCC0603X5R106M350CT

TCC0402X7R105K250AT

0402B104J500NT

CRCW04020000Z0EDHP

FRH0402D1002TS

ARG02BTC1003

HGC0402R5225K350NTEJ

CGA0805X5R106M500MT

README

parsnip-node

Overview

Schematic - v2

PCB - v2

3D Render - v2

In the field - v1

Hardware

Board

ESP32-S3 GPIO pin map

LoRa - E22P-915M30S (U12)

GNSS - NEO-M9N (U9)

Other peripherals

Firmware

Parts

More from LimesKey/parsnip-node

Similar boards

Questions

How big is the Parsnip PCB?

What parts does the Parsnip use?

Where can I download the Parsnip KiCad files?

Can I use the Parsnip design in my own project?