2 layers125 × 80 mm
LoRaDualv1 1
roloran/ROLORAN-Hardware
Custom PCB designs and cases/mounting tools for ROLORAN devices
24 partsGPL-2.0
2 layers255 × 92 mm
LoRaQuadV2
roloran/ROLORAN-HardwareCustom PCB designs and cases/mounting tools for ROLORAN devices
- Size
- 255 × 92 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 82
- Nets
- 126
- Pads
- 453
- Tracks, vias
- 784, 335
- Pours
- 8
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 21 Apr 2025
- Updated
- 2 Nov 2026
Overview
LoRaQuadV2 is an open-source printed circuit board by roloran, from the roloran/ROLORAN-Hardware repository on GitHub, published under the GPL-2.0 licence. It is a 2-layer board of 255 × 92 mm with 82 parts on 126 nets, routed with 784 tracks and 335 vias.
It is built around the E22-900M30S, ESP32-S3-DEVKITC-1-N8R8 and ADS1115IDGS, with the 74HCT02D, RPM5.0-6.0 and RASPBERRY PI ZERO 2 W among its other parts. Its parts include 26 resistors, 17 capacitors, 14 ICs, 9 connectors and 4 transistors. It belongs with the radio and wireless boards and the ESP32 and Raspberry Pi (Linux) boards of this library.
Main components
10
E22-900M30S
SMD,38.5x24mm-151dBm 12km 14mA 2.5V~5.5V 31dBm 650mA Continuous frequency coverage IPEX interface LoRa SPI SMD,38.5x24mm LoRa Modules ROHSChengdu Ebyte Elec TechLoRa Modules
ESP32-S3-DEVKITC-1-N8R8
-- WiFi Modules ROHSEspressif SystemsWiFi Modules
ADS1115IDGS
MSOP10Ultra-Small, Low-Power, 4 Channels 16-Bit Analog-to-Digital Converter with Internal ReferenceTexas InstrumentsUncategorised
74HCT02D
SO-14-40℃~+125℃ 19ns@4.5V,50pF 2 2V 2uA 3.7V 4 4.5V~5.5V 400mV 4mA 4mA 74HCT Series 800mV NOR Gate Overvoltage-tolerant input SOIC-14 Logic Gates ROHSNexperiaGates
RPM5.0-6.0
BLGA-25UncategorisedRECOM Power
RASPBERRY PI ZERO 2 W
-- Raspberry Pi ROHSRaspberry PiRaspberry Pi
TLP291-4
SOIC16Quad Channel Optocoupler, Phototransistor OutputToshibaUncategorised
MMZ2012Y152B
08050805 Ferrite Beads ROHSTDKFerrite Beads
SI3585CDV-T1-GE3-VB
TSOP-6MOSFETsVBsemi Elec
IRFR9024PBF
DPAK(TO-252)-55℃~+150℃ 1 P-Channel 19nC@10V 2.5W 280mΩ@10V 4V 5.6A 570pF 60V 65pF P-Channel DPAK(TO-252) MOSFETs ROHSVishay IntertechnologyMOSFETs
README
MERLIN-Circuit-Board/README.mdMERLIN Circuit Boards
This directory contains the KiCad design sources for LoRa circuit boards used by the MERLIN infrastructure. The designs combine controller hardware with multiple LoRa transceiver modules and expose the radio connections through SMA connectors.
Board designs
Each design consists of a KiCad project (.kicad_pro), schematic
(.kicad_sch), and PCB layout (.kicad_pcb). Open the corresponding
.kicad_pro file to work with a design.
- LoRaDualv1_1 is a dual-radio design built around ESP32 development boards and E22 LoRa modules. Its schematic was created with KiCad 8.
- LoRaQuadV2 is a quad-radio design with additional controller, power, monitoring, and interface circuitry. Its schematic was created with KiCad 9.
The LoRaQuadV2 board is used by other hardware in this repository,
including the printable enclosures in ../MERLIN-Base/
and ../RDCP-Modem/.
Manufacturing
The checked-in files are editable design sources. Before manufacturing a board, review the schematic, PCB layout, footprints, design rules, and the requirements of the selected fabricator. Generate production artifacts such as Gerber files, drill files, bills of materials, and placement files from the selected KiCad project as needed.
Parts
82| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 10k | Resistor_SMD:R_0603_1608Metric | R3, R4, R7, R8, R10, R11, R13, R16, R19, R22 |
| 9 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C9, C10, C11, C12, C13, C14, C15, C16, C17 |
| 5 | 22k | Resistor_SMD:R_0603_1608Metric | R20, R21, R23, R25, R27 |
| 5 | Conn_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J3, J4, J7, J8, J9 |
| 5 | MountingHole | MountingHole:MountingHole_4.3mm_M4_DIN965 | H1, H2, H3, H4, H5 |
| 5 | R | Resistor_SMD:R_0603_1608Metric | R14, R15, R17, R18, R24 |
| 4 | 74HCT02 | Package_SO:SO-14_3.9x8.65mm_P1.27mm | U1, U3, U4, U7 |
| 4 | Conn_Coaxial | Connector_Coaxial:SMA_Amphenol_132289_EdgeMount | J1, J2, J5, J6 |
| 4 | NP | Resistor_SMD:R_0603_1608Metric | R1, R2, R5, R6 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric | C2, C6 |
| 2 | 1uF | Capacitor_SMD:C_0603_1608Metric | C4, C5 |
| 2 | 22uF | Capacitor_SMD:C_0805_2012Metric | C1, C3 |
| 2 | 470 | Resistor_SMD:R_0603_1608Metric | R9, R12 |
| 2 | 47uF | Capacitor_Tantalum_SMD:CP_EIA-3528-21_Kemet-B | C7, C8 |
| 2 | 742792510 | Inductor_SMD:L_1812_4532Metric | L1, L3 |
| 2 | 7427932 | IBDZ:WE-PBF_7847 | L2, L4 |
| 2 | E22-433M30S | IBDZ:XCVR_E22-900M30S | U9, U14 |
| 2 | E22-900M30S | IBDZ:XCVR_E22-900M30S | U5, U8 |
| 2 | MMZ2012Y152B | Inductor_SMD:L_0805_2012Metric | FB1, FB2 |
| 2 | RPM5.0-6.0 | IBDZ:CONV_RPM5.0-6.0-CT | U6, U10 |
| 2 | SI3585CDV-T1-GE3 | Package_TO_SOT_SMD:SOT-23-6 | Q3, Q4 |
| 1 | ADS1115IDGS | Package_SO:TSSOP-10_3x3mm_P0.5mm | U12 |
| 1 | ESP32-S3-DEVKITC-1-N8R8 | IBDZ:ESP32-S3-DEVKITC-1-N8R8 | U2 |
| 1 | IRFR9024PBF | Package_TO_SOT_SMD:TO-252-2 | Q2 |
| 1 | IRLML2030 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 1 | RASPBERRY_PI_ZERO_2_W | IBDZ:MODULE_RASPBERRY_PI_ZERO_2_W | U11 |
| 1 | TLP291 | Package_SO:SOIC-4_4.55x2.6mm_P1.27mm | U13 |
More from roloran/ROLORAN-Hardware
1Similar boards
- 2 layers64.8 × 49.5 mm
- 4 layers252 × 41.5 mm
- 2 layers100 × 60 mm
Medidor Wireless
LuizFernandoOliveira/Medidor-de-Energy-Harvesting-Wireless
This work is licensed under a [Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License][cc-by-nc-nd].
131 parts - 4 layers90 × 100 mm
8ch v3
saewoonam/8ch_currentsource_jlc_v3
V3 of 8 channel current source for biasing superconducting circuits
237 parts - 2 layers119.4 × 30.5 mm
Zynthian zynaptik
zynthian/zynthian-hw
Zynthian hardware stuff: PCBs, schemes, parts specifications, pin assignment, ...
49 parts156 - 2 layers66.2 × 63.5 mm
- 2 layers33.5 × 43.8 mm
- 2 layers23.2 × 50.6 mm
Questions
How big is the LoRaQuadV2 PCB?
It measures 255 × 92 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LoRaQuadV2 use?
82 parts, built around the E22-900M30S, ESP32-S3-DEVKITC-1-N8R8, ADS1115IDGS and 74HCT02D. 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 LoRaQuadV2 KiCad files?
From the roloran/ROLORAN-Hardware repository on GitHub, at the commit this page was made from: the board is MERLIN-Circuit-Board/LoRaQuadV2.kicad_pcb and its schematic MERLIN-Circuit-Board/LoRaDualv1_1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LoRaQuadV2 design in my own project?
Its repository publishes it under the GPL-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).