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Archive for the ‘wireless’ Category

Pulsecounting and deepsleep based IoT water meter

Monday, May 15th, 2017

Tisham Dhar has written an article detailing his pulsecounting and deepsleep based IoT water meter project: I admit to being a tiny bit obsessed with monitoring utility bills and gathering data on my usage patterns blow-by-blow. The energy monitoring has reduced my electricity bills, so I wanted to have a...

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Posted in hacks, wireless | No Comments »

Duck DNS ESP8266 mini WiFi client

Friday, May 12th, 2017

An ESP8266 Duck DNS client from Davide Gironi: It is powered by USB, it can also be powered by the router USB port. It's built on a pretty old ESP-01 board. It has two led, one is the ESP-01 WiFi connection status embedded one, the other is connected to the...

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Posted in wireless | Comments Off on Duck DNS ESP8266 mini WiFi client

ESP32 web server – Arduino IDE

Tuesday, April 18th, 2017

Rui Santos from Random Nerd Tutorials has posted a detailed tutorial on how to create a standalone web server with an ESP32 that can toggle two LEDs using the Arduino IDE. Full details at Random Nerd Tutorials homepage. Check out the video after the break. (more…)

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Posted in Arduino, tutorials, wireless | 1 Comment »

Bridge monitoring system using wireless sensor network

Thursday, April 13th, 2017

Zx Lee and his friends built the bridge monitoring system using wireless sensor network, that is available at github: Recently, I completed a mini project together with two of my friends. So I am going to take this opportunity to share the project that we have made, we named it...

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Posted in sensors, wireless | 1 Comment »

Magic Mote MSP430G2553 wireless sensor node with NRF24L01+ module

Wednesday, April 12th, 2017

Tom from Magic Smoke writes: This is my first time designing a PCB for MSP430. I really like the NRF24L01+ booster pack but I would like something smaller to use for remote temperature sensors. With that in mind I've designed a 24.5 x 50 mm PCB (2 on a 5x5...

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Posted in MSP430, wireless | No Comments »

Esp8266 WebServer farm

Wednesday, March 8th, 2017

An Esp8266 WebServer farm project by Eldon Brown's (a.k.a WA0UWH) After several long months, I have reactivated my Esp8266 WebServer Farm. Currently, one of my WebServers can be accessed as: esp.wa0uwh.com:8154 More info at WA0UWH homepage.

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Posted in wireless | No Comments »

EasyESP-1: a rapid prototyping and development board for ESP8266

Tuesday, January 10th, 2017

Raj over at Embedded Lab has designed a development board for ESP8266: EasyESP-1 is a rapid prototyping board for the low-cost, WiFi-enabled ESP8266 microcontroller. With an onboard USB-to-Serial converter pre-installed, EasyESP-1 does not require any additional hardware to download your application firmware to the ESP8266 chip. The ESP module used...

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Posted in dev boards, wireless | No Comments »

DIY IKEA wireless Qi charging for the Hexiwear

Thursday, December 29th, 2016

Erich Styger built a DIY a wireless charging system for the Hexiwear: The Achilles Heel of the Mikroelektronika Hexiwear is its charging: the charging and USB connector are only designed for a limited number of plug-unplug cycles, and it does not have a wireless charging capability like the Apple iWatch....

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Posted in DIY, wireless | No Comments »

Homebrew WiFi shield

Monday, December 12th, 2016

m0xpd has published a new build, the homebrew WiFi shield: Having just finished development of the new m0xpd / Kanga ESP8266 - AD9834 board, I find myself with a few WiFi components knocking about on the bench - so I figured it would be fun to try to make a...

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Posted in DIY, wireless | No Comments »

HC-12 433MHz wireless serial communication module configuration

Friday, October 21st, 2016

Dziku  writes: HC-12 are cheap 433MHz wireless serial port communication modules with a range up to 1800m in open space. Each costs about $5 when bought from China, and 2 of them can create wireless UART link that can be used, for example, to transfer telemetry data from UAV. Or...

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Posted in wireless | 2 Comments »

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 »

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Recent Comments

  • KH: Really? They are digital inputs driven by an MCU. The MCU GPIO probably has diode clamps and ESD protection. Have you experienced such failures? Please...
  • KH: Neither. Google "Marco Schweighauser’s 8-bit virtual Javascript CPU" and see the first result. Sounds more like a very limited feature toy CPU.
  • Alan: "8-bit x86 like CPU" - isn't that an 8080, or Z80?
  • Geoff: Is it still Sunday somewhere? If so, yes please.
  • hli: Sunday++