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LowLoRa

SorenGilkeyJohnson·LowLoRa·KiCAD/Low Power LoRa.kicad_pcb

LowLoRa PCB layout, top view — open source board by SorenGilkeyJohnson
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About the LowLoRa PCB

LowLoRa is an open source PCB design by SorenGilkeyJohnson, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 23.4 × 25.4 mm, with 64 components from 42 distinct parts.

Other key parts include the MSPM0L110X, BQ25504, SX1262IMLTRT, PE4259 and SHT4X. By type, the board carries 27 capacitors, 17 resistors, 8 inductors, 6 ICs, 3 connectors and 1 transistor.

It belongs with the power & battery, rf & radio and sensors designs in this gallery.

From the project

A solar powered, batteryless LoRa (expandable) sensor node powered from a supercapacitor charged by a small solar cell using an energy harvester.

A solar powered, batteryless LoRa (expandable) sensor node powered from a supercapacitor charged by a small solar cell using an energy harvester. This was built around the Semtech SX1262 LoRa transceiver (US band; 915 MHz) and the low power MSPM0L110x MCU (TI; M0+), this board is a monitoring platform for anything you might want! The board is made around the solar cell and is roughly 23x24mm.

Main components on the LowLoRa

MSPM0L110XBQ25504SX1262IMLTRTPE4259SHT4XLPS22HB

LowLoRa bill of materials (BOM)

64 components, 42 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MSPM0L110X
MSPM0L110x
U1
1
BQ25504
U2
1
SX1262IMLTRT
U3
1
PE4259
U4
1
SHT4X
SHT4x
U5
1
LPS22HB
U6
1
SI2301CDS
Si2301CDS
Q1
1
CRYSTAL_GND24
Crystal_GND24
Y1
1
CONN_01X05
Conn_01x05
J1
1
CONN_01X05
Conn_01x05
J2
1
Conn_Coaxial
J3
1
KXOB121K04F
KXOB121K04F-TR
SC1
1
22U
22u
L1
1
47N
47n
L2
1
0R
L3
1
15N
15n
L4
1
47N
47n
L5
1
2N5
2n5
L6
1
4N7
4n7
L7
1
9N1
9n1
L8
Show 22 more
QtyPartRefs
2
10N
10n
C1, C5
3
4U7
4u7
C2, C6, C8
5
100N
100n
C3, C10, C11, C22, C29
1
0U47
0u47
C4
1
3F3
3f3
C7
1
1u
C9
1
470N
470n
C12
1
47N
47n
C13
2
1P8
1p8
C14, C23
1
47P
47p
C15
1
2P4
2p4
C16
1
3p
C19
1
5P6
5p6
C20
2
39P
39p
C21, C26
2
1n
C24, C25
2
3P3
3p3
C27, C28
1
47K
R1
9
R
R2, R3, R4, R5, R6, R7, R8, R9 +1
2
100K
R11, R12
1
10K
R13
2
4K7
R14, R15
2
100R
R16, R17

LowLoRa design files

The KiCad project lives in the SorenGilkeyJohnson/LowLoRa repository on GitHub; these links point at the commit this page was built from.

LowLoRa: common questions

How big is the LowLoRa PCB?

The LowLoRa measures 23.4 × 25.4 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the LowLoRa?

64 components, from 42 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 LowLoRa design files?

From the SorenGilkeyJohnson/LowLoRa repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the LowLoRa design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which SorenGilkeyJohnson chose for the repository.

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