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2 layers40 × 16 mmUsb evp lora, the printed circuit board in 3D

Usb evp lora

cbalint13/usb-evp2

USB Event Packet (LoRA) Stick

Open in PCBKitView on GitHub.kicad_pcb
Size
40 × 16 mm
Copper layers
2
Thickness
1.6 mm
Parts
20
Nets
25
Pads
102
Tracks, vias
266, 330
Pours
4
Routed
Yes
KiCad
KiCad 6 (file 20211014)
Created
14 Nov 2021
Updated
24 Jun 2024

Overview

Usb evp lora is an open-source printed circuit board by cbalint13, from the cbalint13/usb-evp repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 40 × 16 mm with 20 parts on 25 nets, routed with 266 tracks and 330 vias.

It is built around the MCP2210-I/MQ and AMS1117-3.3. Its parts include 4 resistors, 3 capacitors, 3 ICs, 1 switch and 1 crystal. It belongs with the radio and wireless boards of this library.

Main components

2

README

README.md

usb-evp

USB Event Packet protocol (LoRA) Stick

Original project dating back @ 2018 CircuitMaker USB-EVP-LoRa

OVERVIEW-3D-CAD

Description

USB stick for Event Packet (over LoRa) with integrated antenna on ISM 868/915 bands.

Exposes a generic USB HID interface by MCP2210 directly enabling OS & driver agnostic access from userland.

It have a minimal BOM (bill of materials). OVERVIEW-3D-SCHD

Specs:

  • Smallest LoRa stick on the market by 1.6 x 4 cm
  • Uses FCC and CE certified 100mW NiceRF module
  • Own ceramic micro-antenna (VNA proved RF) for ISM band
  • OS agnostic, opensource USB stack for windows, linux, android etc
  • C / C++ frontend with various examples
  • May support LPWAN networking (IPv6 over 802.15.4 mac layer), with third party kernel module

Can be used in any USB port realying packets over the air.

OVERVIEW-3D-TOP OVERVIEW-3D-BOTTOM

EU ISM band usage

Design files

  • See the design files available for Altium ®, CircuitMaker ®, KiCAD and Gerber format.
  • Check schematic available as quick readable format.
  • There is also an CircuitMaker ® online version available.

Software support

  • See software section for configuration and support.

    text
    $ ./bin/lora-receive /dev/hidraw4 
LoRa RX count #1 frame length = 14 rssi = -61 dB snr = 8 dB
0x00000000 20 6C 6F 72 61 20 6D 65  73 73 61 67 65 00 |  A lora message.

Board images

OVERVIEW-TOP

Parts

20
QtyValueFootprintReferences
42k2USB-LoRa.SchLib:RESC1608X55X30LL15T15R1, R2, R4, R5
3100nFUSB-LoRa.SchLib:CAPC2013X88X50NL20T25C1, C3, C4
230pFUSB-LoRa.SchLib:PCB-EK4STCKT8HTL49C36KEC-1Cx1, Cx2
2LED-0603USB-LoRa.SchLib:VISH-TLMX1100-2_VDS1, DS2
112MhzUSB-LoRa.SchLib:PCB-O7TDNPTWBJGDFBSKC48Q-1X1
147pFUSB-LoRa.PcbLib:SMD0402Ct1
150ohmUSB-eVo.SchLib:HRS-U.FL-R-SMT_VuFL1
16.7pFUSB-LoRa.PcbLib:SMD0402Ct2
1868/915 MhzUSB-LoRa.PcbLib:M620720A1
1AMS1117-3.3USB-eVo.PcbLib:MP04A_NU3
1LoRa1276-C1USB-LoRa.SchLib:PCB-A2VA5FQQIKHNLZOD9I25-1U2
1MCP2210USB-LoRa.SchLib:QFN-MQ20_NU1
1USB-AUSB-LoRa.SchLib:USB-A-HK1

Questions

How big is the Usb evp lora PCB?

It measures 40 × 16 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Usb evp lora use?

20 parts, built around the MCP2210-I/MQ and AMS1117-3.3. 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 Usb evp lora KiCad files?

From the cbalint13/usb-evp repository on GitHub, at the commit this page was made from: the board is hardware/usb-evo-v1.1/kicad/usb-evp-lora/usb-evp-lora.kicad_pcb and its schematic hardware/usb-evo-v1.1/kicad/usb-evp-lora/usb-evp-lora.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Usb evp lora design in my own project?

Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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