534 Results for "esp8266"

Analog to Digital Converter (ADC)
Instructions from ESP cookbook
Embedded computing is basically computing integrated to the real world, and the real world is pretty much analog. By default, electrically measuring analog real world values produces analog voltage or current (which can be converted to voltage using...

ESP-Now
Instructions from ESP cookbook
Ability to connect to WiFi infrastructure is cool, but is costly energywise, if you're on batteries. ESP8266 & 32 have a semi-hidden feature called ESP-Now, that allows very quick data transmissions, like 40-50 ms total for booting up and sending data,...

Tools and Materials
Instructions from Joy Robot (Robô da Alegria) 2017 edition
The following tools and materials were used for this project: Tools: 3D printer - The whole body of the robot is 3D printed. Several hours of 3d printing were needed for building the whole structure;PLA filament - White and black PLA filaments...

I2C Communication
Instructions from ESP8266 Lua Tutorial, Part 2
In the details section of this project you will find a detailed analysis of the I2C bus and how it works, both electrically and in software. Make sure you read this before proceeding, so you understand what the code is doing. We're going to use the NodeMCU...

Tools and Materials
Instructions from IoT Cat Litter Box (with ESP32 and Thingspeak)
The following tools and materials were used in this project: Tools and materials: 3D printer (link / link / link). It was used for printing the case where the electronics are encloused. PLA filament (link / link / link) of any color you want. Solder...

Get parts, plan
Instructions from Universal ESP-WiFi-device flasher
This device is something that a random MCU hacker could assemble from parts lying around, so find suitable parts, find their pinouts (regulator, FET, UART) and plan how they shall be placed on the PCB. - I recommend dedicating one edge to ground, to...

Checking the Google Sheet
Instructions from LoRaWAN Environmental Sensor Google Sheet Helium
Now as we are done with the Complete setup of the Node we will check if the Node and the Integration are working or not and we will also check the Google Sheet where the data is getting stored. For that first, we need to go back to the Google form that...

See what your going to make and the things you'll need:
Instructions from GeoLeaf
For those of you who prefer to watch something instead of reading I have created a detailed tutorial video. Don't worry though, everything in the video (and a little more) is all explained in this guide. Though, even if you will read through this guide...

Device Setup with Arduino Cloud
Instructions from Arduino IoT | IoT Platform Series #4 (Part 1)
It is necessary to have a development board that can be connected to the internet. Below is a list of such devices - ESP32/ESP9266 WiFi (Espressif) MKR 1000/1010 WiFi (Arduino) Nano RP2040 Connect (Arduino) Nano 33 IoT (Arduino) Portenta H7 (Arduino)...

Putting it all together
Instructions from ESP8266 Arduino Tutorial, Part 3
The ESP8266 libraries that we installed include specific libraries for Wi-Fi control, as well as HTTP client control. We will also be using the aforementioned OneWire and SimpleDHT libraries, as well as an SSL library so that our communication with the...

Install code.
Instructions from Wifi controlled stepper motor
Copy and paste the following code into the Arduino IDE. Update the AP name and password to match your needs. 90% of this code is not mine. For full details please see this great guide: https://randomnerdtutorials.com/esp32-esp8266-web-server-physical-button/...

HariFun#132 Sixteen Channel WiFi Remote
Instructions from HariFun#132 Sixteen Channel WiFi Remote
=== WebClient Sketch ===// PCF8574 WebClient, watches buttons and sends /inline?state=x to WebServer // Hari Wiguna, 2016 #include // Declare and set these two variables here or in an include file //const byte credentialCount = 2; //IMPORTANT! Change...

Code
Instructions from Safe City: A Device to Keep You Safe
#include "SoftwareSerial.h" String ssid ="yourSSID"; String password="yourPassword"; SoftwareSerial esp(6, 7);// RX, TX String data; String server = "yourServer"; // www.example.com String uri = "yourURI";// our example is /esppost.php int DHpin = 8;//sensor...

Fading an LED
Instructions from ESP8266 Lua Tutorial, Part 2
In Part 1 of this series, we used an online build service to create our firmware. One of the modules we selected was the PWM module. This module allows us to configure PWM on any of the available GPIO pins which support it. We can configure the frequency...

Establishing Connection
Instructions from ESP8266 Lua Tutorial, Part 3
The official documentation is located in the NodeMCU ReadTheDocs. The simplicity of the library reflects how elegantly simple MQTT itself is. All we need to do is create an MQTT Client object, connect, and then publish as needed. Creating the MQTT Client...

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