October 13, 2018

How to establish communication between BLE CC2540 (DBM01) with Android phone?

How to establish communication between BLE CC2540 (DBM01) with Android phone What is BLE DBM01? DBM01 is a type of low energy data transmission Bluetooth module based on CC2540 from Texas Instruments. Combining the advantages of compact size, extra low power consumption, strong anti-interference, and long communication distance, it is very suitable for short-range wireless […]

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September 27, 2018

ADS-B Setup using RTL SDR

ADS-B Experimentation Date: 10th March 2013 Place: Bangalore, India Receiver: RTL SDR 2832 U+820 T USB DONGLE Software: ADSB#, adsbScope, Virtual Radar Data Format: Beast-AVR raw http://sdrsharp.com/index.php/downloads http://jetvision.de/index.shtml The visualization software would provide aircraft position on the map. The compatible software are adsbSCOPE, Virtual Radar and Planeplotter. http://www.sprut.de/electronic/pic/projekte/adsb/adsb_en.html http://www.sprut.de/electronic/pic/projekte/adsb/adsb_all.zip Virtual Radar http://www.virtualradarserver.co.uk/Download.aspx and PlanePlotter http://www.coaa.co.uk/planeplotter.htm […]

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September 24, 2018

GNURadio based FM Radio Receiver using (RTL-SDR)

I. Introduction   II. Commercial Frequency Modulation Electromagnetic waves can be used to carry baseband signals (audio, video, etc.), by altering one of its following characteristics: Amplitude Wavelength (or frequency) Phase Polarization Amplitude alternation of the electromagnetic wave, is called amplitude modulation, can be mathematically written as: The amplitude modulation is the simplest form of […]

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September 18, 2018

Decoding of LoRaWAN Packets

Decoding of LoRaWAN packets The above screenshot is the received LoRaWAN packet at the gateway which needs to be decoded to understand if the correct data are being sent to TTN. From the LoRaWAN packet data (QNIfASaABAABA/uB+N3FPLnND5ufMW6z) which is in base 64 encoded format is decoded using step (1) to obtain FRMpayload. https://LoRaWAN-packet-decoder-0ta6puiniaut.runkit.sh This web […]

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September 17, 2018

Real-Time Decoding of VOR using RTL-SDR

Real-Time Decoding of VOR using RTL-SDR Introduction VHF Omnidirectional Range (VOR) is a subset of Aircraft Navigation technique falling under point source navigation, which also includes Direction Finders, DME, and Tacan. These technologies predate 1996 and many of the civilian and military aircraft are equipped with these systems, which makes them popular even in the modern era. The adoption […]

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July 22, 2018

VFO on Arduino Nano (Avinash Aeron)

I was looking for a VFO for my newly acquired Bitx40 http://www.hfsigs.com and got this while discussing with my friend Priyasloka Arya: Required items: – Arduino nano https://www.arduino.cc/en/Guide/ArduinoNano – 1602 16×2 Character LCD Display Module HD44780 – SI5351 VFO circuit board http://radiojitter.com/ – Rotary encoder with a circuit board – jumper wires (~20 numbers) Preparing the Arduino nano: Create […]

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July 22, 2018

IoT Project 6 : RaspberryPi 2 and REES52 Proximity Sensor(Avinash Aeron)

Let us try the Proximity Sensor (REES52) this time. Required items: – Raspberry PI 3 & SD Card with ubuntu-mate Operating System https://www.raspberrypi.org/products/ra … 3-model-b/ – Proximity Sensor (REES52) pack – 3 x pitch jumpers Preparing Raspberry PI 3 & SHDC: Create the setup as follows: 1. Download below two as described https://ubuntu-mate.org/raspberry-pi/ – 7-Zip to extract […]

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July 22, 2018

IoT Project 5 : RaspberryPi3 and HC-SR501 Motion Sensor(Avinash Aeron)

I was really useful to have a motion sensor with my Home-Environment monitoring solution that I’m building (see earlier posts on an integration of DTH11, BMP085, GY-30 and MQ135 sensors). I got one ePro Labs PIR Sensor HC-SR501 Motion Sensor. Required items: – Raspberry PI 3 & SD Card with ubuntu-mate Operating System https://www.raspberrypi.org/products/raspberry-pi-3-model-b/ – HC-SR501 […]

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July 22, 2018

IoT Project 3 : RaspberryPi3, GY-30 Sensor and Thingspeak(Avinash Aeron)

got light sensor GY-30 and excited to upgrade the Home-Environment monitoring solution that I’m building (see earlier posts on an integration of DTH11 and BMP085 sensors) Required items: – Raspberry PI 3 & SD Card with ubuntu-mate Operating System https://www.raspberrypi.org/products/ra … 3-model-b/ – GY-30 sensor pack – 4 x pitch jumpers Preparing Raspberry PI 3 & […]

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