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Archive for the ‘wireless’ Category

Wifi enabled 8×64 pixel LED matrix display

Wednesday, September 21st, 2016

Raj over at Embedded Lab has just finished a new project article about Wifi-enabled LED matrix display using ESP8266: This project is a modification of my previous Bluetooth-enabled LED matrix display project, which used 8×64 monochromatic LED matrix (total 512 LEDs) for displaying scrolling text message. The original project used...

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Posted in LEDs, wireless | No Comments »

New ESP8266 board

Tuesday, September 13th, 2016

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...

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Posted in wireless | 2 Comments »

I2C Continuum

Tuesday, August 2nd, 2016

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...

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Posted in Arduino, wireless | No Comments »

ESP8266/RFM69 wifi gateway

Tuesday, July 26th, 2016

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...

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Posted in DirtyPCBs.com, wireless | 2 Comments »

ESP8266 temperature logger

Thursday, July 21st, 2016

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...

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Posted in wireless | No Comments »

LoRaWAN FeatherWing for Adafruit Feather

Wednesday, July 13th, 2016

  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...

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Posted in wireless | No Comments »

WiFiRGB – A WiFi-enabled RGB high-power LED

Thursday, June 23rd, 2016

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...

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Posted in Arduino, wireless | No Comments »

How to build a control circuit with adjustable working time via wi-fi

Friday, June 17th, 2016

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...

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Posted in Android, tutorials, wireless | No Comments »

The AAduino

Thursday, May 12th, 2016

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...

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Posted in Arduino, wireless | No Comments »

NMEA Bridge for OpenCPN

Monday, May 9th, 2016

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...

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Posted in wireless | No Comments »

19th century radio technology meets the Beaglebone

Monday, March 21st, 2016

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,...

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Posted in wireless | No Comments »

nRF24L01+ 2.4 GHz wireless connectivity with the tinyK20 board

Thursday, March 17th, 2016

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...

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Posted in ARM, wireless | No Comments »

OpenGarage, an Open-source WiFi garage door opener

Wednesday, March 16th, 2016

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...

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Posted in sensors, wireless | No Comments »

ESP8266 wireless SID project

Monday, March 7th, 2016

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...

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Posted in project logs, wireless | No Comments »

Building a low cost wifi camera

Saturday, February 6th, 2016

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...

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Posted in DIY, wireless | 7 Comments »

ESP8266 – Wireless weather station with data logging to Excel

Thursday, January 28th, 2016

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...

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Posted in tutorials, wireless | 3 Comments »

ESP8266 mains energy monitor

Tuesday, January 19th, 2016

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...

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Posted in DIY, wireless | No Comments »

Reverse engineering the ESP8266 WIFI-to-Serial port adapter

Friday, January 1st, 2016

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...

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Posted in reversed, wireless | No Comments »

ESP8266 WiFI LED controller hack

Wednesday, December 30th, 2015

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...

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Posted in hacks, wireless | No Comments »

Rediscovering the magic of wireless communication

Friday, December 25th, 2015

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...

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Posted in wireless | No Comments »

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