Peter Scargill writes: So, what differentiates this from say, something like an ESP-12 or similar boards? So this is a small WIFI-enabled controller, programmed in something that looks suspiciously like the Arduino language – this is course is deliberate to give it that familiar look and feel. But looks can be deceiving – this is a […]
Category Archives: wireless
ESP8266 weather station
Dani Eichhorn’s weather station project, that is available at Github: Several ESP8266 hackers contacted me to finally publish the new WeatherStation code. Here it is. It is not yet working as smoothly as I want it to work but maybe some of you can help me getting rid of the nasty issues that were bugging me for […]
ESP8266 MQTT client on RTOS
Baoshi wrote a MQTT client for Espressif’s RTOS SDK: If you search MQTT and ESP8266 on the intraweb, most likely all hits can be traced back to the great work done by TuanPM. However Tuan’s code is based on Espressif’s NON-OS SDK. There has been some great debates about embedded programming with-or-without an OS. To […]
Spectrum analysis with RFM12B
Martin Harizanov writes, “The comments to my last blog post got me thinking if I had chosen the right RFM channel at home, obviously if the channel is noisy that directly affects reception and increases the error rates. I use the default 868Mhz setting for the RFM12B/RFM69s at home and decided to check if the channel […]
DIY WiFi gas detector with text alerts
Stefan over at Hackster.io has written an article detailing his DIY Wi-Fi gas detector that sends SMS alerts: Hey guys, back with another little project that I’ve been fiddling with for the past week. With kids around, every parent is thinking how to make their home safer for the little ones and for everybody in general. One […]
nodeLHC – ESP8266 development board
Pedro Minatel shared us his ESP8266 development board project – nodeLHC: This board was developed at the Campinas Hacker Lab in Brazil during our weekly IoT meetings. This layout and schematic was developed by Leandro Pereira. The idea was to develop a easy to use board and to learn how to use this magnificent WiFi module. We […]
ESP8266 LED display
Evan writes: This is my proof-of-concept for using mqtt with the esp8266. I saw this LED display sitting around and I couldn’t imagine why no one was using it, the answer was no one knew how to talk to it. Easy, I think. Looking at the board it’s just an 8031, a serial level shifter, […]
ESP8266 remote controlled sockets
Rui Santos made a new project, an ESP8266 remote controlled sockets: In this project your’re going to build a web server with an ESP8266 that can control remotely any sockets (safely!). Project info at Rui’s Random Nerd Tutorials site. Check out the video after the break.
How to make two ESP8266 talk
Here’s a detailed tutorial on how to make two ESP8266 talk with each other from Rui Santos: How it works? You’re going to set one ESP as an Access Point (Server) and another ESP as a Station (Client). Then they’ll establish a wireless communication and the Client sends a message to the Server saying “Hello World!”. Project […]
Soldering iron + Nodemcu = IoT device
Vegard Paulsen blogged about his soldering-iron #IoT project: My trusty old soldering-iron recently got an upgrade! With the help of a NodeMCU. a RGB-LED it now reports the set temperature to the #IoT Thingspeak.com server through WIFI. It also sends me Prowl messages on my Iphone when I forget to turn it off. It all […]
How to control your ESP8266 from anywhere in the world
Rui Santos shared a tutorial on how to control your ESP8266 from anywhere in the world: The most common questions I get about the ESP8266 WiFi Modules are: “Is it possible to control my ESP8266 from anywhere in the world?” and “How can I control my ESP8266 from anywhere?”. I’m happy to announce today that […]
MQTT/JQUERY/WebSockets controller
Peter Scargill writes: I wrote a while ago about using web sockets as against something like NETIO for controlling the home – most folk liked the article but I think part of it was a little complicated – and at the time I’d not really thought it out to make it as simple as possible. […]
ESP8266 Arduino NetIO Server demo
Peter Scargill writes: This week as regular readers know I was far away from our little home in Spain – in fact I was at MIT (Massachusetts Institute of Technology) in Boston, helping promote ESP8266 technology (why? because I could). Along the way I met up with Ivan Grokhotkov who as some of you know […]
WiFi smoke detector
An instructables on how to make a WiFi smoke detector by Proto G: This is a simple WiFI Smoke Detector that texts me when it senses smoke. I made this for my battery storage area in case of a lithium polymer fire. I still have all of my regular smoke detectors installed and I don’t […]
ESP8266 MQTT battery monitor project
Steve’s latest DirtyPCBs project, a wireless MQTT battery monitor: This board uses an ESP8266 (ESP12), a Texas Instruments INA226 I2C voltage and current monitor, and a Texas Instruments LMR12010X buck converter. This board is designed to wirelessly monitor 12 volt batteries and power supplies using an external current shunt resistor. The voltage across the shunt […]
WIFI Mains Power Dimmer / Switch with CBDBv2
MAINS Power Dimmer / Switch Module project by Tracker J: Now it’s about time to talk also about what many of you has asked for: DIMMING! It’s a total different story, little bit complicated but, as you will see, not so hard to understand. General considerations: There are several types of dimmers generally available. These […]
Wireless Dallas iButton reader
Ondřej Karas writes: This article describes simple wireless Dallas one-wire device ROM reader. It is intended as a base code for some more sophisticated access control system. We try some kind of access system in followings articles. Now, we are going to read 1-wire ROM code. We use DDC-SE-01-dallas.c from DDC examples as a template […]
Comparing Microcontroller + Wifi Breakout boards
Mike Barela writes, “A new post comparing WiFi / Microcontroller combo breakouts for Makers and the Internet of Things #ESP8266” More details at Mike’s 21stdigitalhome blog.
TI Design Contest: Envision the ultimate NFC wearable
TI has announced a contest for NFC based wearable designs. Do you dream of creating a solution to make monitoring health and fitness activities easier? Using near field communication (NFC) in your designs can help! We want to hear your ideas for the next wearable design based on our RF430FRL15xH NFC sensor transponder in our […]
Sniffing Crazyflie’s radio with HackRF blue
arnaud acquired a HackRF Blue and has been busy coding up a GNURadio project for analyzing Crazyflie radio transmissions. Crazyflie is a nano quadcopter/drone controlled over a wireless link. The Crazyradio is the official radio dongle for the Crazyflie Nano Quadcopter. It is a 2.4GHz USB radio dongle based on the nRF24LU1+ chip from Nordic […]