by Martin @ harizanov.com:
The WiFi SSR board project changed a bit and I use classical relays instead of SSRs now. The reason is that SSRs tend to get quite hot when switching larger loads, and the 8A relays I last used actually could be used for max 2.5A load switching with no heat sink. The high quality relays I now use allow 10A load switching and are rather quiet. I also changed the design a bit so that it would fit in a box (DIN rail compatible) for increased safety.
WiFi Thermostat with weekly scheduler - [Link]
by Stevica Kuharski:
In the past few months ESP8266 has created a real revolution in the IoT space. I’m using it in a project that will hit Indiegogo in a month or so and you, of course will support me ☺ During the development process I’ve learned a lot and I want to share a part of it. Let’s build cheap open WiFi finder together!
How to build an open WiFi finder using ESP8266 - [Link]
Onion is launching the Omega, a hardware development board designed for software hackers (especially Web) with limited experience in hardware development. It is a tiny computer (1/5 the size of the raspberry pi) with built-in WiFi and Linux. The Omega allows software developers create hardware projects in familiar environments (ssh, git and npm) and using high-level programming languages they are used to, such as Python, Node.JS, PHP, etc. More importantly, the Omega is fully integrated into the Onion cloud service, allowing hackers to prototype IoT applications very quickly.
Onion Omega – An invention platform for the Internet of Things - [Link]
by Rui Santos @ randomnerdtutorials.com:
If you want to learn more about the ESP8266 module, first read my Getting Started Guide for the ESP8266 WiFi Module. In this project you’ll create a standalone web server with an ESP8266 that can toggle two LEDs.
Why flashing your ESP8266 module with NodeMCU?
NodeMCU is a firmware that allows you to program the ESP8266 modules with LUA script. And you’ll find it very similar to the way you program your Arduino. With just a few lines of code you can establish a WiFi connection, control the ESP8266 GPIOs, turning your ESP8266 into a web server and a lot more.
ESP8266 Web Server Tutorial - [Link]
It provides details on: how to make the hardware connections using an FTDI Board or Arduino (with suitable disclaimer); how to communicate with the module; using AT commands to act as a client, server or AP; and, updating the firmware.
The con brought in a shipment of 100 of the modules which sold out extremely quickly and the guide provides a one-stop-shop for how to get started with the modules.
ESP8266 WiFi module quick start guide - [Link]
Markus Gritsch shared his WiFi LED light project in the dangerousprototypes forum:
I built a prototype for a WiFi controllable LED light, using the popular ESP8266 module running the NodeMCU firmware . To allow controlling the WS2812B LEDs from Lua, I extended the firmware with a bit of C code
WiFi LED Light (ESP8266 + WS2812B + Lua) - [Link]
Last night was another BuildBrighton nerd-meet-up and, luckily, we had a couple of these new fangled ESP8266 wifi modules to try out. In case you’ve been living in a cave with a tin can tied to the end of piece of string as an internet connection, you’ll probably know that these are the ultra-cheap wifi modules currently flooding out of Chinese factories and onto “hacker benches” all over the world.
The reason they’ve created such a stir is that a) they’re cheap and b) the firmware can be (relatively) easily upgraded. So hackers and makers all over the world have been busy trying to access the onboad microcontroller and utilise the extra GPIO pins, to create a single-chip, all-in-one wifi controller.
Our interests are less adventurous – the modules are sold as UART-to-wifi plugin devices, and that’s exactly how we’re going to use them.
Getting an ESP8266 wifi module to work with Arduino - [Link]
I recently bumped into NodeMCU firmware for the ESP8266. It’s an Lua interpreter, making tinkering with IoT ideas really simple. Just flash the firmware onto the ESP8266 and connect via serial console. You can start prototyping right away using the interactive Lua interpreter. You can easily persist your ideas on a simple flash file system.
Low Power ESP8266 – Sleeping at 78 micro Amps - [Link]
by Nurgak @ github.com:
To measure my electricity usage I decided to build a small system that would count LED blinks on my power meter which indicate the used Wh. It was pretty straight forward system requiring an Internet connected microcontroller to log the data and some sort of sensor that would detect LED blinks on the power meter which is not my property and thus not accessible or modifiable.
The main reason to do this project is to get a better overview of the electricity usage as the house is heated by a heat pump so basically everything works on electricity or other free (thermal solar collector) and renewable sources (stove).
I had a CC3200 development kit laying around, it’s featuring a chip with Wi-Fi and an ARM Cortex-M4 processor running at 80MHz, it was more than enough to fill all the needs of this project.
Electricity usage monitor - [Link]
by alistair_uk @ instructables.com:
This is a very low cost and basic from of home automation allowing you to turn on and off lights and other devices using your computer or mobile phone.
It has been built and tested use using UK power plugs, but the same protocol is used on many budget remote power switchers from around the world.
Internet Controlled Mains Switcher - [Link]