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 […]

ESP8266 NodeMCU Backdoor uPWM hack for IR signals

The AnalysIR crew has published an article showing how to achieve accurate PWM for Infrared carrier signals on the ESP8266 NodeMCU: Quite simple really – just set the baud rate to 10 times the desired Infrared carrier frequency and send a ‘magic’ 8 bit character to achieve the desired duty cycle. Of course we need […]

Running NodeMCU on a battery: ESP8266 low power consumption revisited

Tinkermax shows us how he reduce the current consumption of his v2 NodeMCU in deep sleep to < 50μA: Unfortunately, with all this added convenience comes the drawback of added power consumption, which continues even when the ESP8266 is in deep sleep. I measured 18mA to the NodeMCU board while the ESP8266 was in deep […]

Soldering iron + Nodemcu = IoT device

Vegard Paulsen blogged about his soldering-iron #IoT project: My trusty old soldering-iron recently got an upgrade! With the help of a NodeMCU. a RGB-LED it now reports the set temperature to the #IoT Thingspeak.com server through WIFI. It also sends me Prowl messages on my Iphone when I forget to turn it off. It all […]

Power Meter pulse logger with ESP8266 running NodeMCU

Patrik Thalin writes: This device is installed in my home to monitor the usage of electricity. It counts the pulses from the meter and produces a log file with number of pulses and a time stamp that can later be analyzed. The hardware is quite simple. The NodeMCU development kit board with an ESP8266 running […]

Graphic equalizer display using ESP8266-12, MSGEQ7 and WS2812

Amir Avni made a graphic equalizer display using ESP8266-12, MSGEQ7 and WS2812: Finally, I’ve created a this project: An equalizer display controlled by ESP8266 with the NodeMCU firmware, where the equalizer colors are controlled via WiFi Project info at whatimadetoday site. Check out the video after the break.

ESP8266 running NodeMCU as a controller

jscottb over at LetsMakeRobots writes: My goal for this mini project is to create A simple autonomous rover with just the ESP and NodeMCU. In looking at the specs for node most of the supporting libraries already written. GPIO, PWM and Timer libraries are included in the Lua interpreter. After flashing the board my next up […]