32 x 8 Led Matrix Case with MCU April 12, 2025
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32 x 8 Led Matrix Case with MCU

32 x 8 Led Matrix Case with MCU

April 12, 2025 · admin 3D Printing object ESP8266
This is a case for a 32 x 8 LED matrix and an ESP8266 MCU. It runs on 5V (USB). I've made a connected clock with it.  Its purpose is obviously a matter of the software running on the MCU.
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Simple human interface for Home Assistant

Simple human interface for Home Assistant

April 22, 2023 · admin Hardware 3D Printing object automation ESP8266 NodeMCU IoT Internet of Things Electronic Component
This is a simple human interface project for Home Assistant. It helps me remind doing 2 daily tasks. Using Home Assistant automation, it lit a LED at a given time and use the corresponding button to reset it when I'm done.
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Maximum Frequency of a ESP8266 - Revisited

Maximum Frequency of a ESP8266 - Revisited

November 27, 2015 · admin ESP8266 IoT Internet of Things
The ESP8266 can yield a 163 kHZ wave using the Arduino IDE and writing the code in C.  The code used is:
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Maximum Frequency an ESP8266 can yield

Maximum Frequency an ESP8266 can yield

November 26, 2015 · admin ESP8266 NodeMCU IoT Internet of Things
An ESP8266 running NodeMCU can yield maximum frequency of 1.44 kHz with a duty cycle of 61%.  The wave form is given below.  The code used to perform this test is:
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Interrupt NodeMCU init.lua

Interrupt NodeMCU init.lua

November 24, 2015 · admin Linux ESP8266 NodeMCU IoT Internet of Things
It can be sometimes challenging to regain control of the NodeMCU running on a ESP8266 when init.lua has a tight loop in it.  To do so,  first, download esptool.py from GitHub. Execute the following command
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ESP8266 Resources Page

ESP8266 Resources Page

November 22, 2015 · admin ESP8266 NodeMCU IoT Internet of Things
I have written a page that contains many useful links about the ESP8266 platform.  You can display this page either using the top menu option "ESP8266 Resources" or by cliking on this link.
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ESP8266 - Remarkable free book

ESP8266 - Remarkable free book

November 21, 2015 · admin ESP8266 NodeMCU IoT Internet of Things
A remarkable book about the ESP8266 is freely available.  It can be downloaded from Kolban’s book on the ESP8266.  It contains more than 300 pages of information.  This book is a very good overview of the technology and a great starting point if you want to develop around this device.
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