This is my website for publishing information on the projects I am interested in, which for the last few years has been mostly to do with exploring the capabilities and applications for devices using Semtech’s LoRa®.

The Jekyll Minima theme used for this website is fairly basic but the Jekyll and Github pages combination means its very easy to update and keep secure. You can work in WYSIWYG mode on a locally running copy of the website and then just push the changes up to the live Github pages repository and website.

LoRa® is a trademark of Semtech Corporation.

Stuart Robinson - 13 September 2020

Blog

Sep 21, 2024
How not to read a GPS with TinyGPSplus
Jul 23, 2024
Improving LoRa Reception - Part 1
Apr 9, 2024
Testing Antennas Really Is Easy
Feb 20, 2023
Improved TTN LoRaWAN Node for XIAO LoRa
Feb 17, 2023
Improved Tracker and Sensor Node for XIAO and LoRa
Dec 14, 2022
Easy Build TTN and LoRaWAN Nodes
Oct 15, 2022
Seeeduino XIAO - Part 4
Oct 15, 2022
Seeeduino XIAO - Part 3
Oct 5, 2022
Seeeduino XIAO - Part 2
Oct 3, 2022
Seeeduino XIAO
Sep 8, 2022
Cycle Alarm Extender
Aug 6, 2022
Easy Build ESP32 Board
Feb 5, 2022
Long Range Wireless Adapter for ESP32CAM
Jan 1, 2022
StuartCAM - ESP32CAM Getting the Pictures Onto a PC
Dec 28, 2021
Arduino to Arduino File Transfers
Dec 28, 2021
Arduino to PC File Transfers
Dec 24, 2021
Serial Bridge
Nov 27, 2021
StuartCAM - ESP32CAM Getting the SD card to Work
Nov 21, 2021
StuartCAM - ESP32CAM Picture Transfers with LoRa
Nov 12, 2021
StuartCAM - LoRa Remote Camera Image Transfer
Nov 6, 2021
Large Data Transfers with LoRa - Part 4 - 2.4Ghz SX128X
Sep 21, 2021
Minimal Pin Count LoRa
Sep 20, 2021
Large Data Transfers with LoRa - Part 3 - UHF SX127X
Aug 26, 2021
Reliable Packets with LoRa - Part 2
Aug 25, 2021
Reliable Packets with LoRa - Part 1
Mar 3, 2021
Large Data Transfers with LoRa - Part2
Feb 26, 2021
Large Data Transfers with LoRa - Part1
Jan 18, 2021
The Perils of Using Structures ?
Dec 17, 2020
Easy ESP32CAM LoRa Tracker Add On Board
Nov 28, 2020
Do not connect LoRa® devices directly to 5V Arduinos
Nov 5, 2020
Low memory easy LoRa
Sep 27, 2020
Adding an LCD display to tracker receiver
Sep 10, 2020
GPSs and antennas; effectiveness and weight
Aug 31, 2020
LoRa® is not Slow !!!
Aug 27, 2020
ESP32CAM-TrackerAddOn-Board
Aug 14, 2020
Testing antennas is easy
Aug 7, 2020
ESP32CAM as a High Altitude Balloon Tracker - Really?
Jun 11, 2020
LoRa® Receiver – Automatic Frequency Control
May 28, 2020
ESP32 IOT node power saving
May 25, 2020
High Altitude Balloon Tracking Software for SX12XX library – Part 3
May 20, 2020
High Altitude Balloon Tracking Software for SX12XX library – Part 2
May 20, 2020
High Altitude Balloon Tracking Software for SX12XX Library – Part 1
May 8, 2020
Frequency drift for LoRa® devices, is it important?
May 7, 2020
How Fast is LoRa®?
May 5, 2020
SoftwareSerial problems
Mar 9, 2020
Can UK Radio Amateurs use LoRa® ?
Feb 20, 2020
Just how long can a sensor battery last?
Jan 30, 2020
Library for SX12XX LoRa® devices
Oct 8, 2019
SX1262 – Improved LoRa® Device
Oct 8, 2019
2.4Ghz NiceRF SX1280 LoRa® Balloon Tracker – Update - Now 89km Achieved !
Oct 7, 2019
SX1280 Fast LoRa®
Oct 7, 2019
2.4Ghz NiceRF SX1280 LoRa® Balloon Tracker - 85km Achieved
Apr 27, 2019
Antennas for SX1280 2_4Ghz LoRa transceivers
Apr 26, 2019
Semtech SX1280 2.4Ghz LoRa® Ranging Tranceivers
Feb 2, 2019
Reducing Tracker node sleep current a wasteful race to the bottom ?
Feb 1, 2019
GPS Performance Comparisons
Jan 9, 2019
GPS backup issues 3 – Whats the alternative ?
Jan 9, 2019
GPS backup issues 2 – Super Capacitor ?
Jan 2, 2019
GPS backup issues 1
Dec 24, 2018
Very Low Power Nodes
Oct 1, 2018
My GPS does not work
Sep 28, 2018
LoRa® – does CAD work at weak signal levels
Sep 9, 2018
More ESP32 adventures
Sep 9, 2018
Measuring Low Currents
Aug 26, 2018
Generating UBLOX GPS Configuration Messages
Jul 1, 2018
ESP32 Shield – Adding a LoRa® Device
Jun 29, 2018
ESP32 Shield - a Low Power Journey.
Jun 26, 2018
Power measurements can be useful !
Jun 26, 2018
Measuring Power
Jun 2, 2018
Phantom Packets – Is this the reason ?
May 31, 2018
A LoRa® mystery – Phantom packets but deeper
May 29, 2018
A LoRa® Mystery – Phantom Packets.
Mar 22, 2018
Adventures with the ESP32
Mar 1, 2018
Lost in a (wet or dry) Forest
Feb 28, 2018
The first LoRa® received from Space !
Feb 22, 2018
The problem with co-ax cable connections to antennas
Jan 24, 2018
The impact of bandwidth on LoRa® sensitivity.
Jan 24, 2018
How to use low bandwidths with the Tracker programs.
Jan 23, 2018
LoRa® Signal Quality – RSSI or SNR?
Jan 17, 2018
Ping testing the Heltec Wi-Fi LoRa® OLED device
Jan 16, 2018
Reducing project sleep mode current to 0.001uA
Jan 15, 2018
My problem with receiver sensitivity and link budgets
Jan 9, 2018
Is LoRa® affected by local EMI - Tests with ESP32.
Jan 9, 2018
Can we improve LoRa® device performance ?
Nov 24, 2017
Versatile GPS Breakout board
Jun 15, 2017
At Last ………
Feb 28, 2017
The Perils of USB Power Banks
Aug 25, 2016
Reception distances at UHF – My 1000:1 rule.
Aug 23, 2016
EMF Field 2016
Aug 17, 2016
The advantages of trees
Aug 15, 2016
How to Search 500 Square Kilometres in 10 minutes
Jun 29, 2016
Not quite according to plan
Jun 23, 2016
Finding Lost Trackers
Jun 22, 2016
The MAX6369-MAX6374 Watchdog
Jun 8, 2016
$50SAT, a new approach to Amateur satellite design which became the world’s smallest operational satellite, built for £125 in a garden shed
Apr 16, 2016
Long Distance Tracking and Monitoring with LoRa
Apr 1, 2016
Testing and comparing transmitters, receivers and antennas.
Mar 12, 2016
GPS Antennas and the effect on Tracker power consumption
Nov 1, 2015
FSK RTTY versus LoRa®
Aug 1, 2015
In the Footsteps of Marconi
Jun 1, 2015
Searching With LoRa - Lost Something?
Jan 1, 2015
Semtech LoRa® Transceivers a KISS approach to Long Range Data Telemetry
Nov 21, 2013
$50SAT-a-very-small-Earth-orbiting-satellite