LoRaPP
About the LoRaPP PCB
LoRaPP is an open source PCB design by daveshah1, published on GitHub. It is a 4-layer board measuring 50 × 18 mm, with 78 components from 47 distinct parts.
Other key parts include the TXEABDSANF-32, LD3985G30R, SX1276, PE42421 and MAAL-010704. By type, the board carries 36 capacitors, 20 resistors, 12 inductors, 6 ICs, 2 connectors and 1 diode.
It belongs with the rf & radio designs in this gallery.
From the project
Small but flexible LoRa module. 434/868MHz; optional PA, LNA and SAW
Small, flexible LoRa module designed for HAB use as well as general long distance comms.
Features: SX1276 LoRa transceiver Same PCB can be used for 434MHz, 868MHz and probably other frequencies (different components required) MMZ09312 PA for >27dBm output power (for 869.525MHz use in EU). Optional, can be bypassed with 0 ohm resistors if not needed. SAW filter and MAAL-010704 LNA (also optional) in receive path
Main components on the LoRaPP
LoRaPP bill of materials (BOM)
78 components, 47 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TXEABDSANF-32 | TCXO-WT325 | U1 |
| 1 | LD3985G30R | SOT-23-5 | U2 |
| 1 | SX1276 | QFN-28-1EP_6x6mm_Pitch0.65mm | U3 |
| 1 | PE42421 | SC-70-6_Handsoldering | U4 |
| 1 | MAAL-010704 | SC-70-6_Handsoldering | U5 |
| 1 | MMZ09312BT1 | QFN-12-1EP_3x3mm_Pitch0.5mm | U6 |
| 1 | CONN_02X08 | Pin_Header_Straight_2x08_Pitch2.00mm | P1 |
| 1 | ANT | RFcon | P2 |
| 1 | B39871B3725U410 | SAW-DCC6C | SAW1 |
| 1 | ESDAXLC6-1BT2 | C_0402 | D1 |
| 1 | FERRITE | R_0402 | L1 |
| 2 | 10nH | R_0402 | L2, L4 |
| 1 | 33nH | R_0402 | L3 |
| 1 | 6.2nH | R_0402 | L5 |
| 1 | 0R | R_0402 | L6 |
| 1 | 82nH | R_0402 | L7 |
| 1 | 8.2nH | R_0402 | L8 |
| 1 | 1.2nH | R_0402 | L9 |
| 1 | 22n | R_0402 | L10 |
| 1 | 33n | R_0402 | L11 |
Show 27 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 3.3nH | R_0402 | L12 |
| 7 | 100n | C_0402 | C1, C2, C3, C5, C6, C8, C9 |
| 1 | 10n | C_0402 | C4 |
| 1 | 1µ | C_0603_HandSoldering | C7 |
| 4 | 1n | C_0402 | C10, C11, C20, C21 |
| 1 | 1µ | C_0603 | C12 |
| 1 | 10µ | C_0805 | C13 |
| 2 | 100p | C_0402 | C14, C30 |
| 3 | DNP | C_0402 | C15, C26, C27 |
| 1 | 3.3pF | C_0402 | C16 |
| 1 | 1.5pF | C_0402 | C17 |
| 2 | 47pF | C_0402 | C18, C22 |
| 1 | 33pF | C_0402 | C19 |
| 2 | 4.7pF | C_0402 | C23, C36 |
| 1 | 1.2pF | C_0402 | C24 |
| 1 | 1.8pF | C_0402 | C25 |
| 2 | 1nF | C_0402 | C28, C33 |
| 1 | 10nF | C_0402 | C29 |
| 2 | 1µF | C_0402 | C31, C32 |
| 1 | 6.8pF | C_0402 | C34 |
| 1 | 4.7µF | C_0805 | C35 |
| 2 | 4.7k | R_0402 | R1, R2 |
| 7 | DNP | R_0402 | R3, R5, R7, R13, R14, R19, R21 |
| 8 | 0R | R_0402 | R4, R6, R8, R9, R10, R12, R15, R20 |
| 1 | 120 | R_0402 | R16 |
| 1 | 330R | R_0402 | R17 |
| 1 | 1.5k | R_0402 | R18 |
LoRaPP design files
The KiCad project lives in the daveshah1/LoRaPP repository on GitHub; these links point at the commit this page was built from.
- Layoutloramod.kicad_pcb
LoRaPP: common questions
How big is the LoRaPP PCB?
The LoRaPP measures 50 × 18 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the LoRaPP?
78 components, from 47 distinct parts. The full bill of materials is listed on this page.
Where can I download the LoRaPP design files?
From the daveshah1/LoRaPP repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the LoRaPP design in my own project?
The repository has no license, so all rights stay with daveshah1. Use it as a reference, and ask the author before reusing the design.
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