4 layers40.2 × 53.9 mm
Lora
GodOfStrategy/Personal-LoRa-Puck
A small compact module made to transmit and receive messages using sub gigahertzs frequencies of radio waves, for use in things such as automation, transmission, reception etc.
46 parts
2 layers35.5 × 29 mm
A custom-designed LoRa development board built in KiCad, combining the powerful Raspberry Pi RP2040 microcontroller with the Semtech SX1262 LoRa transceiver.
- Size
- 35.5 × 29 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 48
- Nets
- 81
- Pads
- 226
- Tracks, vias
- 546, 51
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 15 Jul 2026
- Updated
- 3 Aug 2026
Overview
Loraa is an open-source printed circuit board by joshitha-c, from the joshitha-c/lora-pluck repository on GitHub. It is a 2-layer board of 35.5 × 29 mm with 48 parts on 81 nets, routed with 546 tracks and 51 vias.
It is built around the RP2040, PE4259-63 and SX1262IMLTRT, with the W25Q128JVSIQ, AP2112K-3.3 and 0900FM15D0039E among its other parts. Its parts include 25 capacitors, 7 resistors, 5 ICs, 4 inductors and 2 switches. It belongs with the RP2040 boards of this library.
Main components
6
RP2040
LQFN-56(7x7)12bit 133MHz 30 LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
PE4259-63
SC-70-6-40℃~+85℃ 0.35dB 1.8V~3.3V 10MHz~3GHz 30dB 33.5dBm Integrated control logic SPDT SC-70-6 RF Switches ROHSpSemiRF Switches
SX1262IMLTRT
QFN-24-EP(4x4)-148dBm -40℃~+85℃ 1.8V~3.7V 150MHz~960MHz 22dBm 300Kbps 32mA 4.2mA ISM SPI Supports software reset、Power-on reset function、Supports RSSI function transceiver QFN-24-EP(4x4) RF Transceiver ICs ROHSSEMTECHRF Transceiver ICs
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
0900FM15D0039E
SMD-10P,2x1.2mm-40℃~+85℃ 0.8dB 50Ω 902MHz~928MHz 915Hz、866MHz SMD-10P,2x1.2mm Ceramic Filters ROHSJohanson DielectricsCeramic Filters
README
README.mdLoRa RP2040 Development Board
A custom-designed LoRa development board built in KiCad, combining the powerful Raspberry Pi RP2040 microcontroller with the Semtech SX1262 LoRa transceiver. The board is designed for long-range wireless communication, rapid prototyping, IoT applications, and embedded systems development. This development board is intended for long-range wireless communication and embedded IoT applications. The RP2040 acts as the main controller while the SX1262 provides LoRa connectivity for transmitting and receiving data over long distances.
Features
- RP2040 dual-core ARM Cortex-M0+ microcontroller
- SX1262 LoRa transceiver (Sub-GHz communication)
- USB Type-C interface for programming and power
- External QSPI Flash memory
- 12 MHz crystal for RP2040
- 32 MHz crystal for SX1262
- RF matching network
- Antenna connector
- Reset and Boot buttons
- On-board voltage regulation
- Proper decoupling capacitors for stable operation
- Designed entirely in KiCad
Main Components
| Component | Description |
|---|---|
| RP2040 | Main Microcontroller |
| SX1262 | LoRa Transceiver |
| W25Q Series Flash | External QSPI Flash Memory |
| USB-C Connector | Programming & Power |
| 12 MHz Crystal | RP2040 Clock |
| 32 MHz Crystal | SX1262 Clock |
| RF Matching Network | Impedance Matching |
| Antenna Connector | RF Output |
Future Improvements
- OLED display support
- GPS module
- Battery charging circuit
- Li-ion battery connector
Tools Used
- KiCad
schematic
pcb
Parts
48| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C6, C7, C8, C9, C10, C11, C12, C13, C14, C21, C22 |
| 2 | 10uF | Capacitor_SMD:C_0402_1005Metric | C24, C25 |
| 2 | 15pF | Capacitor_SMD:C_0402_1005Metric | C3, C4 |
| 2 | 1K | Resistor_SMD:R_0402_1005Metric | R1, R5 |
| 2 | 1uF | Capacitor_SMD:C_0402_1005Metric | C15, C16 |
| 2 | 27.4 | Resistor_SMD:R_0402_1005Metric | R2, R4 |
| 2 | 3.3pF | Capacitor_SMD:C_0402_1005Metric | C19, C20 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R6, R7 |
| 1 | 0900FM15D0039E | EasyEDA:FILTER-SMD_10P-L2.0-W1.3-BL | L2 |
| 1 | 100 | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | 12mHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 15uH | Inductor_SMD:L_0402_1005Metric | L4 |
| 1 | 1nF | Capacitor_SMD:C_0402_1005Metric | C17 |
| 1 | 32mHz | Crystal:Crystal_SMD_Abracon_ABM8G-4Pin_3.2x2.5mm | Y2 |
| 1 | 39pF | Capacitor_SMD:C_0402_1005Metric | C18 |
| 1 | 470nF | Capacitor_SMD:C_0402_1005Metric | C23 |
| 1 | 47nF | Capacitor_SMD:C_0402_1005Metric | C2 |
| 1 | 47nH | Inductor_SMD:L_0402_1005Metric | L1 |
| 1 | 47pF | Capacitor_SMD:C_0402_1005Metric | C5 |
| 1 | 9.1nH | Inductor_SMD:L_0402_1005Metric | L3 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U5 |
| 1 | Antenna | Connector_PinSocket_2.54mm:PinSocket_1x01_P2.54mm_Vertical | AE1 |
| 1 | BOOSTEL | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW1 |
| 1 | FerriteBead | Inductor_SMD:L_0402_1005Metric | FB1 |
| 1 | PE4259-63 | EasyEDA:SC-70-6_L2.2-W1.3-P0.65-LS2.1-BL | U2 |
| 1 | RESET | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW2 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U3 |
| 1 | SX1262IMLTRT | Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U4 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U1 |
Questions
How big is the Loraa PCB?
It measures 35.5 × 29 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Loraa use?
48 parts, built around the RP2040, PE4259-63, SX1262IMLTRT and W25Q128JVSIQ. 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 Loraa KiCad files?
From the joshitha-c/lora-pluck repository on GitHub, at the commit this page was made from: the board is loraa.kicad_pcb and its schematic loraa.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Loraa design in my own project?
Its repository states no licence, so its author keeps all rights: ask joshitha-c before reusing the design.
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