Category Archives: wireless

SimpleLink ultra-low power wireless MCU platform

Allie informs us of TI’s new SimpleLink ultra-low power wireless platform for Bluetooth Smart, 6LoWPAN, ZigBee, Sub-1 GHz and ZigBee RF4CE Today, TI is helping manufacturers throw out the battery for their IoT devices with its new SimpleLink ultra-low power wireless MCU platform. This new wireless MCU family brings a first to the industry, a single-chip […]

ESP8266 WiFi module quick start guide

follower from rancidpacon writes, I recently wrote a 15-page getting started guide for the $5 ESP8266 WiFi modules for Kiwicon 8, a local New Zealand hacker con. It’s available as both HTML and a PDF. It provides details on: how to make the hardware connections using an FTDI Board or Arduino (with suitable disclaimer); how […]

WiFi LED Light (ESP8266 + WS2812B + Lua)

Markus Gritsch shared his WiFi LED light project in the forum: I built a prototype for a WiFi controllable LED light, using the popular ESP8266 module running the NodeMCU firmware [1]. To allow controlling the WS2812B LEDs from Lua, I extended the firmware with a bit of C code Check out the video after the break.

TAPR/DCC video: System on a Chip – Programming FPGAs for Mixed Signal Systems

Here is the first of a four-part video series recently posted from the 2014 TAPR/DCC conference in Austin, TX. This is from the DCC’s Sunday Seminar, “a four-hour deep dive” into a single subject, in this case FPGA programming for mixed signal systems. “The presenter is amateur radio operator Chris Testa KD2BMH who is designing […]

Homebrew wireless security system

In a previous post we covered the security node that Ken from OverEngineered was building to replace the proprietary home security system in his house. Ken has updated us on the project’s status. “I finally got the final version of that node installed and running my home’s security system. It’s all working pretty well now, […]

WiFi IoT 3 channel relay board with MQTT and HTTP API using ESP8266

Martin writes: The ESP8266 DHT22/LED blinker project grew into a M2M relay board project with the following features in mind: Relatively small (10x5cm) PCB Powered via on-board power supply or externally via a micro-USB plug Has three 2A Sharp Solid State Relays (later version has 8A SSR) DHT22 humidity/temperature and/or DS18b20 temperature sensor support to use […]

Reverse engineering the Panasonic AC infrared protocol

The AnalysIR Team hailing from Dublin, Ireland has just published a new article called. “Reverse engineering the Panasonic AC Infrared protocol”. If you’re into IR hacking with the USB IR Toy, check this out. “AnalysIR is an advanced IR analyzer & decoder that works with Arduinos, Raspberry Pi, USB IR Toy, Teensy3, ChipKit Fubarino and […]

Reverse engineering a Verisure wireless alarm

Here’s an informative two-part series of posts over at FunOverIP detailing how to reverse engineer a Verisure wireless alarm. Part 1 details the beginning steps such as finding the modules radio frequency and modulation type, analyzing the chipset datasheet and using GNU Radio.

Configure your WR703n with a switch (or two)

Martin Melchior has been experimenting with switch-selectable configurations for a TP-Link TL-WR703n router. The setup allows for quick changes in configuration dictated by changes in location or circumstances. It allows the router’s use as a Ethernet to WiFi bridge (Access point), since it’s handy to have your own WiFi at a friend’s house or hotel; […]

Adventures in Moteino: Remote temperature monitor

  Colin over at CuPID Controls writes: We want to put our remote sense and control modules out into the wild and read and aggregate them as it makes sense. Our basic system layout is as below. We’ve got multiple wireless nodes that broadcast data periodically, and a controller/aggregator that will log this data, acknowledge […]

WiFi globalCALCnet with the Spark Core

A wireless calculator networking with WiFi gCn using the Spark Core.  KermMartian of Cemetech writes: This current project achieves all the goals of that project, and more: it provides a computer-free way to connect calculators to the internet, and lets the calculators independently configure the bridge device as well. The two components that were necessary to […]

Using a standard coil for NFC tag implant reading

Limpkin writes: Who knew it’d be possible to use this coil to read NFC tags? A while ago I backed the xNT campaign , which aimed at making an NTAG216 based NFC implant for different purposes. After a few months of waiting and a few weeks of trying to find someone in Switzerland willing to […]

First impression on the ESP8266 serial-to-WiFi module

Ray Wang has been experimenting with the ESP8266 Serial-to-WiFi module, which has gained much hype recently. “The module is very compact, easy to interface with, and inexpensive. I wrote an Arduino program to show how to use the Arduino to communicate with the WiFi module and set up a very simple web server.” Check out […]

Reverse engineering wireless pro studio lighting

Richard Webb just finished an article on reverse engineering the wireless protocol used to communicate with some pro studio lighting. His approach involves sniffing the SPI bus into the lighting controller’s RF module using the Open Bench Logic Sniffer to obtain preliminary addressing information, then used an nRF24L01+ module in receive mode to capture packets. […]

Wireless LED driver with PCA9634

Ondřej Karas of DoItWireless writes, “If You are interested in LED driving through RF, this article would be interesting for you. I tested own PCA9634 breakout board for this chip and wrote simple low level driver for IQRF TR-52D module. Next week, I am going to publish PC application for comfortable operation with that.”