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Pulse LoRa

risejohan·2Bit·Pulse LoRa/Pulse LoRa.kicad_pcb

Pulse LoRa PCB layout, top view — open source Microchip SAM board by risejohan
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About the Pulse LoRa PCB

Pulse LoRa is an open source Microchip SAM PCB design by risejohan, published on GitHub. It is a 2-layer board measuring 98.5 × 34 mm, with 76 components from 40 distinct parts.

Its main chip is the ATSAMD21G18A-AUT, from the Microchip SAM family. Other key parts include the MCP73871, MIC5330-3.3/3.0, RFM95W-915S2 and W25Q16JV-DTR. By type, the board carries 27 capacitors, 23 resistors, 7 connectors, 5 ICs, 4 diodes and 3 antennas.

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

From the project

In this repo we can see some designs with free use for the community, 2 Bit electronic

Be able to use the designs of the common modules to have available and apply to electronic designs.

Module designed as a network node for IoT applications. It allows sending data over a long distance with a wide communication spectrum, high immunity to interference and minimal power consumption.

- Wireless alarm and security systems - Home and building automation - Automatic meter reading - Industrial monitoring and control - Long-range irrigation systems, etc.

Pulse LoRa, from the project README
From the project README

Main components on the Pulse LoRa

ATSAMD21G18A-AUTMCP73871MIC5330-3.3/3.0RFM95W-915S2W25Q16JV-DTR

Pulse LoRa bill of materials (BOM)

76 components, 40 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATSAMD21G18A-AUT
U1
1
MCP73871
U2
1
MIC5330-3.3/3.0
U3
1
RFM95W-915S2
U4
1
W25Q16JV-DTR
U5
1
Q_NPN_BEC
Q1
1
Q_PMOS_GDS
Q2
1
32.768
Y1
1
USB_B_Micro
J1
1
ARM_SWD
J2
1
MODULE0
J3
1
PULSE0
J4
1
MODULE1
J5
1
PULSE1
J6
1
PWR
J7
1
SMA
AE1
1
PCB
AE2
1
uFL
AE3
1
18650
BT1
2
SW_Push
SW1, SW2
Show 20 more
QtyPartRefs
1
SP0503BAHT
D1
1
ORANGE
D2
1
RED
D3
1
D_Schottky
D4
1
4.7uH
L1
2
22uF
C1, C3
3
C
C2, C7, C13
2
1uF
C4, C5
1
100uF
C6
15
0.1uF
C8, C9, C10, C11, C12, C15, C17, C18 +7
4
10uF
C14, C16, C19, C22
1
1K
R1
1
100K
R2
1
25K
R3
10
10K
R4, R6, R9, R11, R12, R13, R17, R18 +2
1
270K
R5
1
DNP
R7
2
470
R8, R10
3
R
R14, R16, R19
3
0
R20, R21, R22

Pulse LoRa design files

The KiCad project lives in the risejohan/2Bit repository on GitHub; these links point at the commit this page was built from.

Pulse LoRa: common questions

What microcontroller does the Pulse LoRa use?

The Pulse LoRa is built around the ATSAMD21G18A-AUT, from the Microchip SAM family.

How big is the Pulse LoRa PCB?

The Pulse LoRa measures 98.5 × 34 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Pulse LoRa?

76 components, from 40 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 Pulse LoRa design files?

From the risejohan/2Bit repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Pulse LoRa design in my own project?

The repository has no license, so all rights stay with risejohan. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Pulse LoRa without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Microchip SAM firmware against it before you order a PCB.

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