KA7OEI’s temperature/humidity/line voltage web server/telemetering device: As anyone who reads this blog probably knows, I have a bit to do with the operation and maintenance of the Northern Utah WebSDR – a remote receiver system that allows anyone with Internet access and a web browser to listen to the LF, MF, HF and some of […]
Tag Archives: ESP8266
Using modular synth to control Atem camera switching over WiFi using ESP8266
Sebastian writes: I’ve been wanting to control my camera switching from my modular synth. So I made a setup where a low to high transition on a digital input on an ESP8266 module generates an OSC message on the WiFi network for the ATEM Mini Pro switcher to change cameras. Here, it’s triggered from the […]
Broadlink smart bulb conversion to open source
VikTak writes: Many of the current bulbs on the market are based on the same chip, the ESP8266. These bulbs are very easy to “hack” and replace the firmware in them with the likes of my ActoSenso or the more widely known and used Tasmota. However, not all bulbs use the same chip. One of […]
ESP8266 MP3 sound machine v2
Zack Lalanne writes: Last summer, I made an ESP8266 MP3 Sound Machine using ESPHome to play calming sounds when my son goes to sleep. I used ESPHome to develop the firmware so it could communicate with my Home Automation platform, Home Assistant. Well, requirements change and projects need updating. So over the holidays, I created […]
Make an amazing $6 digital radio with an old ESP8266 and a VS1053 decoder
Mike Diamond @ whatimade.today has written an article on how to make a low cost digital radio with an old ESP8266 and a VS1053 decoder. See the full post at whatimade.today.
Build an ESP8266 web server – Code and schematics (NodeMCU)
A detailed instructions of how to build an ESP8266 Web Server using NodeMCU firmware: This tutorial is a step-by-step guide that shows how to build a standalone ESP8266 Web Server that controls two outputs (two LEDs). This ESP8266 NodeMCU Web Server is mobile responsive and it can be accessed with any device with a browser in […]
Temperature/weather station
B. Perry writes: I’ve always been fond of the popular Nixie clocks made from old surplus Soviet nixie tubes. Nixie tubes are no longer made, so they’re hard to acquire. Instead, I took inspiration from “Lixie” displays and made my own Nixie-inspired, LED-powered display. And in an unusual twist (for me, anyway), I didn’t make […]
‘No-Parts’ temperature measurement with Arduino Pro Mini
From the comments on our ESP8266 temperature logger post, Edward Mallon writes: The ESP8266 has a hardware watchdog timer, so you could probably use that to measure temperature to much better resolution that you’d get from a DS18B20. We get better than 0.003C using the technique with cheap Pro Mini Clones Ooops, I missed an important […]
Build your own IoT/MQTT node for less than $2
Albert David writes, “This blog explains how to use ESP-12F module without the need of a base board but with minimal set of components.” See the full post on his blog.
WiFiChron alarm clock
Here’s a cool WiFiChron clock with 8-character alphanumeric LED display by Florinc: For WiFiChron, two cascaded modules make an 8-character display functionally similar to HDSP-2534, but bigger and more visible. With the “Display Abstraction Layer” already in place, software support should be easy to integrate, since controlling it with the HT16K33 breakout allows the re-use of […]
MusiCubes project
Michael Teeuw published a new build: Now that the MusiCubes tray is assembled and the RFID-sensor and LEDs are working as expected, It’s time to add the last feature of the original concept: invisible capacitive touch sensors to control the volume of the music. See the full post on Xonay Labs blog. Be sure to […]
trigBoard – Ultra low power ESP8266 IoT platform
Kevin Darrah writes: The trigBoard is an IoT project that does one thing – it pushes you a notification triggered by a digital input. Well, it’s much more than that, but this is the inspiration. I wanted to design a WiFi board that essentially sleeps most of its life, but when that door switch, flood […]
Build a Multisensor Shield for ESP8266
Rui Santos has a great write-up on building a Multisensor Shield for ESP8266, that is available on GitHub: In this project you’ll discover how to design and create a Multisensor Shield for the ESP8266 Wemos D1 Mini board. The shield has temperature sensor (DS18B20), a PIR motion sensor, an LDR, and a terminal to connect […]
EEPROM rotation for ESP8266 and ESP32
Xose Pérez over at Tinkerman writes: The Arduino Core for ESP8266 and ESP32 uses one SPI flash memory sector to emulate an EEPROM. When you initialize the EEPROM object (calling begin) it reads the contents of the sector into a memory buffer. Reading a writing is done over that in-memory buffer. Whenever you call commit […]
ESP8266 SPI Spy
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 view the results remotely and […]
Alexa (Echo) with ESP32 and ESP8266 – Voice controlled relay
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 physically control the lamps.” More […]
ESP8266 Wi-Fi button – DIY Amazon dash button clone
Rui Santos over at Random Nerd Tutorials posted a step by step guide on building an ESP8266 Wi-Fi button: In this project you’re going to build an ESP8266 Wi-Fi Button that can trigger any home automation event. This is like a remote control that you can take in your pocket or place anywhere that when […]
Bus timer project
Limpkin published a new build: For once, this project was not for me… it was for my wife ! Every morning she takes the bus then train to go to work. If she misses her train, she has to wait for more than 30 minutes for the next one. Not missing her bus is therefore […]
ESP8266 voltage regulator (LiPo and Li-ion batteries)
Rui Santos writes, “In this guide, you’re going to build a voltage regulator for the ESP8266 that can be used with LiPo and Li-ion batteries.” More details at RandomNerdTutorials.com. Check out the video after the break.
Weather logger with Losant and Amazon Alexa
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 logging system is like this […]