Category Archives: code

Receiving Oregon Scientific sensors with RTL-SDR

Kevin Mehall got his RTL-SDR dongle and wasted no time in developing a decoder using GNU Radio for the 433MHz transmissions of Oregon Scientific remote temperature sensors (v1 protocol). These devices transmit on 433.9 MHz sending data packets containing the … Read more

Propeller object: solar position calculator and almanac

Here’s a unique Propeller code object providing the functionality of a Solar Position Calculator & Almanac. Written in Spin by Prophead100, this object takes input including date, local/solar time, latitude, longitude and daylight savings time status, and calculates “a good … Read more

Using the STM32W-RFCKIT 2.4 GHz development board to sniff 802.15.4 traffic via Linux

in code, open source by DP | 0 comments

Joe designed a 802.15.4 network analyzer for Linux with the STM32W-RFCKIT , by reverse engineering the Windows only closed-source application note AN3406. Summary: The STM32W-RFCKIT together with application note AN3406 is a nice low cost solution for diagnosing problems on … Read more

Graphing TI ez430 Chronos watch data in Processing

Chemicaloliver has written a short post describing how to graph ez430 Chronos watch data in Processing. His post includes links to the source code, which is an extension of the earlier Processing code by Sean Brewer. Originally written in 2010, … Read more

RTL-SDR APCO Project 25 (P25) receiver

Balint Seeber has done it again! In this video he shows how to take the RTL-SDR dongle and use it in conjunction with the open source OP25 project to successfully demodulate APCO Project 25 (P25) digital radio voice communications. P25 … Read more