An isolated analog input for Arduino
https://www.electronics-lab.com/isolated-analog-input-arduino/
Giovanni Carrera designed a circuit that accepts input voltage from about 20mV to 5V or a current of 4 to 20 mA and converts it to a isolated frequency signal. A voltage to frequency converter can realize an opto-isolated analog input for Arduino or other microcontroller systems. This circuit is particularly suitable for industrial control […]
How to Measure LUX With Arduino
https://www.electronics-lab.com/measure-lux-arduino/
In this tutorial codebender_cc uses the Adafruit TSL2561 sensor to measure LUX with Arduino. The TSL2561 luminosity sensor is an advanced digital light sensor, ideal for use in a wide range of light situations. Compared to low cost CdS cells, this sensor is more precise, allowing for exact lux calculations and can be configured for […]
How to interface Keypad 4×4 with Arduino
https://www.electronics-lab.com/interface-keypad-4x4-arduino/
In this tutorial we are going to learn some basics on using Keypad 4×4 on Arduino. by mybotic @ instructables.com This keypad consists of 4 rows x 4 columns of buttons. It is ultra-thin that it provides an useful human interface component for microcontroller projects. Convenient adhesive backing provides a simple way to mount the […]
35-second Arduino language reference
https://www.electronics-lab.com/35-second-arduino-language-reference/
A 35 seconds walk through the Arduino language specifications and how to use it. By reading the below, in 35 seconds you will have a complete knowledge of the Arduino programming language specifications. Then scroll to the bottom for how to use it. 35-second Arduino language reference – [Link]
Calendar- Time – Humidity and Temperature Arduino LCD display
https://www.electronics-lab.com/calendar-time-humidity-temperature-arduino-lcd-display/
Jordan Kreindler shows us how to build a Battery Saving LCD display that is a able to show Time, Date, Humidity and temperature using DHT22, RTC3231 and Arduino. The power saving mode here is what sets this Instructable apart from other examples showing day of the week, month, day of the month, time, humidity, and […]
External Hardware Monitor
https://www.electronics-lab.com/external-hardware-monitor/
Vincenzopaolo FlameE @ instructables.com shows us how to create an external hardware monitor based on Arduino and Nokia LCD display. Communication with the PC is done using Visual Basic program. Hi guys! Today I will show you how create an external hardware monitor with any Arduino board(in my case a pro micro board), a Nokia […]
How To Connect Multiple Buttons with MCU Using One Line
https://www.electronics-lab.com/connect-multiple-buttons-mcu-using-one-line/
One of the biggest problems you could face in your current/next project, is when you’re out of free inputs to use. Sometimes you can save a lot of inputs using some tricks, and there’re really a lot of them. In this blog post we’re going to know how you can use many push buttons using […]
FARMBOT Open-source CNC Farming Machine
https://www.electronics-lab.com/farmbot-open-source-cnc-farming-machine/
FarmBot is an open-source CNC farming machine designed for small-scale precision food production. Similar to any CNC milling machine, FarmBot hardware employs linear guides in the X, Y and Z directions for tooling. FarmBot tools include: seeder, watering nozzle, camera, weeder and soil sensor. FarmBot is powered by a Raspberry Pi 3, Arduino Mega 2560 […]
Arduino Proximity Alarm
https://www.electronics-lab.com/arduino-proximity-alarm/
Lucas Reed @ instructables.com has build a proximity alarm using Arduino and an ultrasonic sensor from Parallax. If a nearby object is approaching then the alarm will sound and an RGB LED will light up. He writes: An ultrasonic rangefinder and Arduino microcontroller will check for nearby objects and if need be, alert you with […]
Controlling DC motors with Arduino and L293
https://www.electronics-lab.com/controlling-dc-motors-arduino-l293/
This tutorial shows how to interface DC motors using L293D motor driver IC and Arduino. Controlling DC motors with Arduino and L293 – [Link]