M0xpd writes: You can well see it is an engineering sample, because I’m squeezing the wrong size packages into locations (quarter Watt resistors where eighth Watt components should be, etc) and using a mishmash of different component types, but you’ll forgive me, I’m sure. The new design presents the Expressif ESP8266 device on an Arduino-sized […]
Category Archives: wireless
I2C Continuum
Peter Scargill writes: Success with I2c – once I realised there was something up at the Arduino end which I could work around, my ESP8266 I2c endeavours have been coming on in leaps and bounds! And here is my test rig – or one of them – I have one for I2c display and another […]
ESP8266/RFM69 wifi gateway
James Coxon writes: The aim was to use ESP8266 and reflash the onboard processor with the Arduino development environment to allow easy porting of the current UKHASnet code. The ESP would act as the main microprocessor and control the RFM69 over SPI. Any packets received by the RFM69 would then be uploaded by the ESP […]
ESP8266 temperature logger
A ESP8266 temperature logger project from Facelesstech: I decided to use the esp-01 module because I only need 2 GPIO pins since I was using the DS18B20 temp sensor and the WS2812 LED. This made the hardware really cheap and easy to reproduce too. I normally use FTDI boards when it comes to the USB to […]
LoRaWAN FeatherWing for Adafruit Feather
Dan Watson documented a new custom FeatherWing he has designed to add the MicroChip RN2483/RN2903 LoRaWAN module to Adafruit Feather: I have designed some FeatherWings in the past to add a LoRa transceiver module to Feather. I did the LoRa FeatherWing Development Breakout and the LoRa FeatherWing IOX that used the HopeRF RFM95/96(W) modules. […]
WiFiRGB – A WiFi-enabled RGB high-power LED
Tom blogged about his WiFi/Browser controlled RGB LED project: Features Simple hardware, using pre-fabricated modules Controls an RGB LED via any recent browser, any operating system WiFi credentials can be configured via browser Software is written as an Arduino sketch Full details at Tom’s blog. Check out the video after the break.
How to build a control circuit with adjustable working time via wi-fi
Yahya Tawil over at All About Circuits posted a detailed how-to on building a control circuit with adjustable working time via Wi-Fi: In this article, you’ll learn how to build a system that can turn DC loads on and off using a mobile application. You’ll also learn how to perform this task via immediate actions or via […]
The AAduino
Johan Kanflo has a new project posted the AAduino, that is available on Github: The AAduino is an wireless Arduino clone the size of an AA battery with Keystone battery terminals rotated 180° to act as positive and negative terminals. It is powered by an ATMega328p and is fitted with an RFM69C companion. There is […]
NMEA Bridge for OpenCPN
Larry Littlefield, KB7KMO, writes: I want to be able to run openCPN on both a laptop and a tablet at the same time. I would like the laptop down below deck, safe from the rain and salt water spray. I would like to have a mostly waterproof tablet in the cockpit to monitor progress. And […]
19th century radio technology meets the Beaglebone
Ashish Derhgawen built a coherer-based receiver with a simple decoherer mechanism, and connected it to a Beaglebone to decode the received signals: In my last post, I described how I made a spark-gap transmitter and receiver. For the transmitter, I used a car’s ignition coil to produce high voltage sparks, and for the receiver, I […]
nRF24L01+ 2.4 GHz wireless connectivity with the tinyK20 board
Erich Styger writes: I’m using the tiny and inexpensive Nordic Semiconductor nRF24L01+ transceiver (see “Tutorial: Nordic Semiconductor nRF24L01+ with the Freescale FRDM-K64F Board“) in many projects: it costs less than $3 and allows me to communicate with a proprietary 2.4GHz protocol in a low power way (see “IoT: FreeRTOS Down to the Micro Amps“). I have […]
OpenGarage, an Open-source WiFi garage door opener
Ray Wang has published a new project called OpenGarage, an open-source garage door opener based on ESP8266 and the Blynk app: Today I am very excited to introduce you to OpenGarage — an open-source, universal garage door opener built using the ESP8266 WiFi chip and the Blynk app. I’ve wanted to finish this project for a […]
ESP8266 wireless SID project
bl4rk shares his ESP8266 wireless SID in the project log forum: I’ve been trying to start a SID project for about 5 years now. Back then I wanted to use a 6502 along with a CPLD and other ‘real’ hardware… while I might still do something like that (or even try to use an FPGA for everything […]
Building a low cost wifi camera
Johan Kanflo designed a Esparducam board and built a low cost wifi camera with an Arducam Mini and a ESP8266 Wifi module: Sometime ago I came across the Arducam Mini which is quite a nice camera module from UCTronics. It is a small PCB with a two megapixel OmniVision OV2640 sensor, an interchangeable lens and an FPGA to do […]
ESP8266 – Wireless weather station with data logging to Excel
Rui Santos writes, “In this project we are going to establish a wireless communication between two ESPs and send data from three sensors to an Excel spreadsheet. This tutorial shows a wireless weather station with data logging that you can implement in your home.” Project info at Random Nerd Tutorials site.
ESP8266 mains energy monitor
A ESP8266 mains energy monitor project by Brian Dorey: As the new solar logger did not have this functionality we decided to design a new data-logger that would measure not only the mains current usage but also keep track of the electric meter and gas meter so we can easily see how much energy we […]
Reverse engineering the ESP8266 WIFI-to-Serial port adapter
Here’s a video from electronupdate on reverse engineering the ESP8266 WIFI-to-Serial port adapter: Another very interesting bit of technology. The combination of so much functionality into such a small part is a real touch-stone as to where things are heading. A quick look at the antenna design to see if I could sort down the […]
ESP8266 WiFI LED controller hack
Andreas Hölldorfer of ChaozLabs wrote an article detailing how he hacked the cheap WiFi LED controller: This pictures show the PCB. As you can see there are pins labeled as RX,TX,GND,3.3V. I simply connected an USB-Serial converter to the pins. The two other pins are GND and GPIO0. If you set a jumper between this two pins, […]
Rediscovering the magic of wireless communication
Ashish Derhgawen’s article on rediscovering the magic of wireless communication: In this article, I will tell you the story behind one of the most important technological inventions of modern times – wireless communication. I will also describe some of my own experiments with high voltage spark transmitters and coherers! But before I talk about those, […]
Souliss device ESP based combined with 3D Printing
Juan has been working on a Souliss device ESP based project, that is available at Github: With this board we can control 3 monocolor led strips (or 1 RGB), can host multiple sensors and options to come by external modules or internal conectors, Im working on this modules now. For now this board can host a […]