Author: Robert Putt

Doorbell Hacking

Recently I bought my first house, and that means no more silly tenancy agreement rules, e.g. no picture hooks on the walls or screwing with the wiring, aka ultimate smart home freedom :-D. To complement my CurrentCost SDR logging and Temperature & Humidity sensors I decided it was time to buy a cheap hackable doorbell, the

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Author: Robert Putt

Author: Robert Putt

Author: Robert Putt

Current Cost Power Usage Monitor (Going in the backdoor with Software Defined Radio)

As you have probably guessed from my previous blog posts I am slowly pimping (or in the words of the misses, making a mess) my house with a variety of Internet of Things devices such as Phillips Hue, various sensors and so on. After discussing IoT devices with my work colleague the other day he

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Author: Robert Putt

Author: Robert Putt

Internet of Things: Mapping The Things Network LoRa Coverage with TTN Mapper

Out of curiosity I have been trying to establish the range in which my LoRa gateway can receive packets, first off I started using the tools by Radio Mobile Online which allows you to determine coverage estimates based on the antenna positioning details and the height profile of the area around your antenna, you can

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Author: Robert Putt

Author: Robert Putt

Internet of Things: LoRa DHT22 Temperature & Humidity Sensor on Breadboard

Continuing with my mission to convert my ESP8266 based sensors into LoRaWAN enabled sensors I pushed on with getting a DHT22 on breadboard and getting the code written to submit temperature and humidity over LoRa. If you’d like to replicate this mini project you’ll need the following: Arduino Uno or equivalent SX1272 / SX1276 LoRa

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Author: Robert Putt

Internet of Things: LoRa Hello World

Another LoRa transceiver module finally arrived from China today, now I have two of the things I decided to crack on with building a LoRa push button using an Arduino Uno and the LoRa module. Eventually this will be developed into a small circuit on strip board consisting of the LoRa module, an ATMega328-PU and a

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Author: Robert Putt

Internet of Things: Wohoo, First LoRa Packet Received!

Wohoo, whilst taking a look over the logs today, although I have no LoRa nodes myself, I noticed that my Single Channel LoRa Gateway had received it’s first packet from somebody and here it is… stat update: {“stat”:{“time”:”2017-05-08 22:00:49 GMT”,”lati”:0.00000,”long”:0.00000,”alti”:0,”rxnb”:0,”rxok”:0,”rxfw”:0,”ackr”:0.0,”dwnb”:0,”txnb”:0,”pfrm”:”Single Channel Gateway”,”mail”:””,”desc”:””}} Packet RSSI: -113, RSSI: -112, SNR: -11, Length: 9 rxpk update: {“rxpk”:[{“tmst”:1621788918,”chan”:0,”rfch”:0,”freq”:868.100000,”stat”:1,”modu”:”LORA”,”datr”:”SF7BW125″,”codr”:”4/5″,”lsnr”:-11,”rssi”:-113,”size”:9,”data”:”xoT77qK24c5x”}]} stat

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