Libelium has introduced their 3G/GPRS shield for Arduino (3G + GPS). It enables connectivity to high speed WCDMA and HSPA cellular networks, and includes GPS. “The GPS module also makes it possible to perform geolocation services even in indoors as … Read more
The 2012 GNU Radio Conference will be held September 24-27, 2012, at the Sheraton Gateway Hotel near the Altanta, GA airport. The conference coordinators have posted a “call for papers” from prospective presenters. Visit this link to fill out and … Read more
Kanal von MegaOscarVideos from Germany presents a two-part video comparision of the Funcube dongle and a RTL-SDR DVB-T dongle, in this case a Hama Nano version. The two devices are connected to the same antenna and using identical test systems … Read more
Chronos hackers take note! In this presentation from the Shmoocon 2012 conference, atlas 0f d00m talks about using the USB RF dongle that comes with the EZ430 Chronos watch to conduct experiments in the ISM bands. This talk covers a … Read more
In order to use even a high-priced SDR for GSM experimentation, an accurate clock source is indispensable. According to the GSM standard, a clock with “absolute accuracy better than 0.05 ppm for both RF frequency generation and clocking the timebase” … Read more
Michail Papadimitriou is in the process of developing a Nixie clock which will synchronize with the DCF77 time signal. These standard time signals are transmitted on 77.5 kHz from Germany, and Michail intends to use a DCF77 Time Receiver Module, … Read more
Boris suggests we look at this GSM/GPRS and GSM modem. A modem GSM & GPRS with SIM900 or SIM908 module. Allows you to create data connections on the GSM network through a standard USB interface. The cellular modems, particularly USB-stick … Read more
Chris from PyroElectro writes: Here’s an article that explains how to build a dual DC motor control system, combined with a wireless receiver and transmitter (XBee modules) which tell the motors at what speed they should move forward, or backward. … Read more
The FUNcube Dongle is a SDR receiver on a USB dongle which currently sells for $125 GPB. It uses the same E4000 tuner found in the $20 RTL-SDR dongle we’ve posted about previously. The developer is Howard Long, G6VLB, who … Read more
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
Robots shared his cheap AFSK terminal node controller design. It’s a cheap alternative to the commercial TNCs, based on a STM32VL discovery board and a small adapter board. Audio Frequency Shift Keying is an old, low speed packed based radio … Read more
While we await the arrival of the Ezcap dongle from DealExtreme we found this video from Balint Seeber. He’s made using this device with GNU Radio even easier by coding up a source block for use with GNU Radio Companion.
If you don’t want to spend $1,200+ for a USRP SDR to use GNU Radio the crew at OsmoSDR want to help. In addition to their other amazing work, Osmocom team members (notably Steve Markgraf) have been hacking away on … Read more
JP Norair has been hacking away with the TI 433 MHz Chronos. My project is OpenTag, which is a 433 MHz centric IoT/M2M stack. It’s 433-centric because it implements DASH7 and because it makes design assumptions that multihop is not … Read more
This talk from the 2011 DCC conference held in Baltimore, MD, last September, covers the basics of using Bluetooth in microcontroller circuits. The presenter is John A. Hansen, amateur radio licensee W2FS, and is the developer of commercial amateur radio … Read more
This talk is from the 2011 Digital Communications Conference (DCC) held last September in Baltimore, MD. The speaker is Matt Ettus who heads up Ettus Research, manufacturers of the USRP family of SDRs. His talk is an in depth technical … Read more
Travis Goodspeed has assembled this wardriving project covering the ZigBee wireless protocol. It is designed around the radio module from the TelosB, which is used to sniff for nearby ZigBee/802.15.4 transmissions. This module is connected via serial to a Roving … Read more
asdf informs us that TI has the CC110L RF Module BoosterPack now in stock and available for $19. According to TI: The CC110L RF BoosterPack is a low-power wireless transceiver extension kit for use with the Texas Instruments MSP-EXP430G2 LaunchPad … Read more
In this lightning talk presentation from the 28C3 conference, the zunkworks crew outlines their work using simple RF hardware and a Linux laptop with soundcard to experiment with Radio Direction Finding (RDF). RDF has long been used in commercial and … Read more
At the recently concluded Chaos Communication Congress 28C3 “behind enemy lines” conference in Berlin, Germany, Guillaume Delugré presented this talk on reverse-engineering a Qualcomm baseband. Despite their wide presence in our lives, baseband chips are still nowadays poorly known and … Read more
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