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Archive for the ‘wireless’ Category

LoRa module in DIL form

Monday, May 7th, 2018

Mare writes: Murata produces LoRa module CMWX1ZZABZ-xxx based on SX1276 transceiver and STM32L072CZ microcontroller. The soldering of the LGA module is not very hobby-friendly. I constructed small breakout PCB for this module with additional buck/boost switcher and place for SMA connector. The transceiver features the LoRa®long-range modem, providing ultra-long-range spread...

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Posted in ARM, wireless | No Comments »

ESP8266 SPI Spy

Friday, May 4th, 2018

nop head writes: I came across a very useful post by Thomas Scherrer that describes how to read data from a Peacefair PZEM-021 energy meter by spying on the SPI bus with an Arduino. I decided to do the same thing with an ESP-12F WiFi module so that I could...

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Posted in Arduino, wireless | No Comments »

Alexa (Echo) with ESP32 and ESP8266 – Voice controlled relay

Tuesday, March 27th, 2018

Rui Santos writes, "In this project, you’re going to learn how to control the ESP8266 or the ESP32 with voice commands using Alexa (Amazon Echo Dot). As an example, we’ll control two 12V lamps connected to a relay module. We’ll also add two 433 MHz RF wall panel switches to...

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Posted in tutorials, wireless | No Comments »

Game audio for the ESP32

Monday, February 19th, 2018

ESP32 game audio at Buildlog.Net blog: I have been working on some games for the ESP32 and needed some decent quality audio with a minimum number of additional components.  I was bouncing between using the DAC and using the I2S bus. The DAC requires less external parts, so I went...

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Posted in library, wireless | No Comments »

ESP32lights

Thursday, January 11th, 2018

Luca Dentella published a new build: Today’s project, ESP32lights, is a smart device based on the esp32 chip. Thanks to ESP32lights you can turn a load on and off (I used it for my christmas lights) manually based on daily schedules based on the light intensity ESP32lights connects to your...

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Posted in wireless | No Comments »

Weather logger with Losant and Amazon Alexa

Thursday, November 30th, 2017

Steve documented his experience experimenting with home weather logging: Like a million other people on the Internet, I’ve been experimenting with home weather logging. I roll my eyes at the phrase “Internet of Things”, but it’s hard to deny the potential of cheap networked sensors and switches, and a weather...

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Posted in Arduino, sensors, wireless | 2 Comments »

SQUIX ESP8266 based e-paper WiFi weather station

Friday, October 27th, 2017

Erich Styger documented his experience building Daniel Eichhorn’s e-paper weather station with a custom enclosure: Using e-paper for a weather station is an ideal solution, as the data does not need to be updated often. By default, the station reaches out every 20 minutes for new data over WiFi and...

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Posted in wireless | 1 Comment »

WiFi TFT touch LCD weather station with ESP8266

Wednesday, September 20th, 2017

Erich Styger built this ESP8266 WiFi weather station with touch LCD and wrote a post on his blog detailing its assembly: After the “WiFi OLED Mini Weather Station with ESP8266“, here is another one: this time with Touch LCD :-)  In the previous article (“WiFi OLED Mini Weather Station with...

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Posted in wireless | 3 Comments »

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 »

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Recent Comments

  • KH: TPS62200 will get him to under 15uA, a bit better than the 20-30uA he mentioned. I would try the same thing. Switch some resistors in...
  • KH: Yeah, it's an end-user thing. Very few people would spend hundreds of hours on this kind of project and sustain it. It's more or less...
  • Max: Not quite a dinosaur if you've seen Big Hero 6 though... wait. You've watched it with your kids, didn't you? That's cheating...! ;) One of...
  • Edward Mallon: A visiting researcher dropped by our humble basement workshop with questions about the physical skill level students would need if they added one of our...
  • KH: And that looks really expensive... Only browsed the vid though, I'm an dinosaur so I had the sound off too. Nice of him to open-source...