ESP8266 WiFi AT Command List

Test command Command Response Parameter AT OK -   Reset Command Response Parameter AT+RST OK -   Get firmware version Command Response Parameter AT+GMR VERSION:<Param> OK Param : firmware version WiFi mode Command Response Parameter AT+CWMODE=? +CWMODE:(1-3) OK - AT+CWMODE? +CWMODE: <Param> OK Param: 1 -- station mode (client) 2 …

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NodeMCUv1.0 Pinout

NodeMCU WiFi Jammer

There is, in fact, a way to create a NodeMCU WiFi jammer although technically, this is a deauther and not really a jammer. A jammer sends out noise on the WiFi frequency spectrum (2.4 GHz) while the program in this tutorial sends packets that disrupts the normal functions of your …

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NodeMCU Pinout

NodeMCU Pinout Reference

The NodeMCU is an Arduino-compatible board that features the ESP8266 at its core. It became popular because it is a WiFi-ready microcontroller by itself - no need for an Arduino. The aim of this article is to show all NodeMCU pinout and boards that are currently available.

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I2C Wiring Diagram SDA SCL

What is I2C? | Protocol Guide

I2C, or Inter-integrated Circuit, is a communications protocol common in microcontroller-based systems, particularly for interfacing with sensors, memory devices and liquid crystal displays. Similar to SPI, it's a synchronous protocol because it uses a clock line. The I2C protocol, however, uses less pins and is a much more robust standard.

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SPI Timing Diagram

What is SPI? | Protocol Guide

SPI, short for Serial Peripheral Interface, is a communication protocol common in microcontroller systems. Sensors, liquid crystal displays and memory cards are examples of devices that use SPI. It is faster than both UART and I2C although it also has its disadvantages.

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Catch the Light PIC Game

Catch the Light PIC Game

This project is a simple PIC game where LEDs go on randomly one at a time. The objective is to “catch” the LED that’s on by pressing the corresponding button. For every catch, the score, displayed on a seven segment display, is incremented. The speed of the LEDs increase every …

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Electronic Queuing System

Electronic Queuing System

The idea of this electronic queuing system is to display both sequence number and counter number in three seven segment displays. For example, when counter 1 presses his button, the number 1 shows up on the counter number segment. At the same time, the sequence number is incremented. This system …

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