HardLabs

LoRaWan

LOEWE-emergenCITY·freespeaker·electric_design/FreeSpeaker/LoRaWan/LoRaWan.kicad_pcb

LoRaWan PCB layout, top view — open source AVR/Arduino board by LOEWE-emergenCITY

About the LoRaWan PCB

LoRaWan is an open source AVR/Arduino PCB design by LOEWE-emergenCITY, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 13 components from 12 distinct parts.

Its main chip is the ATmega32-16A, from the AVR/Arduino family. Other key parts include the slice_connector_male and RFM96W-433S2. By type, the board carries 3 ICs, 3 connectors, 3 resistors, 2 capacitors, 1 diode and 1 inductor.

It belongs with the iot & wireless designs in this gallery.

From the project

The modular, research-friendly smart home hub

For developing we used KiCAD which is an open source CAD software. It was used by the Raspberry Pi Foundation for their IO Board and the Compute Module.

ONLY store files we already build. First step will only have project and schematics!

Each subdir is a stand alone KiCAD project.

The top level project is - for referencing the different schematics - showing the dependencies between the different PCBs - documentation - generating a full bill of material

Main components on the LoRaWan

ATmega32-16Aslice_connector_maleRFM96W-433S2

LoRaWan bill of materials (BOM)

13 components, 12 distinct parts.

QtyPartRefs
1
ATmega32-16A
U4
1
slice_connector_male
U5
1
RFM96W-433S2
U20
1
AVR-JTAG-10
J2
1
Conn_02x04_Odd_Even
J4
1
U.FL Connector
J6
1
LED Green
D2
1
10m
L1
1
10n
C2
1
100n
C3
1
120
R4
2
2K2
R5, R6

LoRaWan design files

The KiCad project lives in the LOEWE-emergenCITY/freespeaker repository on GitHub; these links point at the commit this page was built from.

LoRaWan: common questions

What microcontroller does the LoRaWan use?

The LoRaWan is built around the ATmega32-16A, from the AVR/Arduino family.

How big is the LoRaWan PCB?

The LoRaWan measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the LoRaWan?

13 components, from 12 distinct parts. The full bill of materials is listed on this page.

Where can I download the LoRaWan design files?

From the LOEWE-emergenCITY/freespeaker repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the LoRaWan design in my own project?

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

Can I test firmware for the LoRaWan without the hardware?

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

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