A simple breakout board of ESP8266 on breadboard can do most of NodeMCU work. Also need a PL2303 USB-TTL programmer Most wifi embedded project will not have too much input and output resource to let the user enter the wifi SSID and password info, so we normally config this via phone app....
You can find the arduino library in the product link: https://www.electrodragon.com/product/ws2812-neopixels-ring-leds/ https://www.electrodragon.com/product/8-led-ws2812-5050-rgb-led-stick-board/ From the example, run "standtest" sketch, follow the instruction to setup for the board, and it will show all the standard effects: The wiring should be Din - pin6 of arduino, VIN - 5V arduino, GND - GND arduino. And here is...
This test is based on our basic CC1101 board, it is the basic version, not the highest signal strength, nor using the on-board MCU to simply the communication to serial port. So this board works at SPI originally. First what is LQI and RSSI, we copied an answer from this link...
We have some new stepper motors coming soon, and we tested with arduino. To have a completed a understanding about stepper motor, we have documents a lot of information on this wiki page. You can fully understand how to recognize each pin of the motor, and how to connect them in phase frequency. This...
Nowadays, more and more things goes internet and wireless. We have recently looking into some really really interesting arduino projects, as a game changer, it's not only keep the the arduino essential point - modular and stackable, furthermore, now the main arduino boards are fully Bluetooth wireless, images all your...
It's pretty useful when you have a arduino project run a long time when it is fully set up, now you can read about this on this post to get a fully explanation, will be pretty useful for sensor monitoring, wireless things, etc. Get the JeeLib here. And use the following example code,...
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1. Stack your W5100 shield on you arduino board,make sure all the pins contact OK. SIZE: L-69MM W-53.6MM 2. Download the test sketch [c] /************************************************/ #include <SPI.h> /* * Web Server * * A simple web server that shows the value of the analog input pins. */ #include <Ethernet.h> byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED...
Here is a simple example about how to use the Ultrasonic sensor to detect objects. Parts List Arduino UNO R3 (I use the Adafruit mount) One (1) HC-SR04 Ultrasonic Sensor One (1) Red LED, One (1) Green LED Two (2) 560 ohm (Green, Blue, Brown, Gold) Resistors (more…)
The stepper motor has five leads, and we will be using both halves of the L293D this time. This means that there are a lot of connections to make on the breadboard. The motor has a 5-way socket on the end. Push jumper wires into the sockets to allow the motor...
