RS232 – MAX232 Interface Module

This project is a RS232 Interface Board based on MAX232 IC. Description This project  provides you a simple and easy solution to connect / convert your Microcontroller input/output to be connected to the serial port of the Computer. This projects build around  popular  MAX232 level shifter IC to do the Level Shifting (Voltage) between 5 V and 12 V DC. An Onboard 9 pin female “D” connects this PCB to the Ser ...

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HSM-20G Interface with Arduino Uno

The HSM-20G is an analog humidity and temperature sensor that outputs analog voltage respects to relative humidity and temperature. However from this sensor relative humidity is found along with temperature. Relative humidity is the percentage of moistures of airs for a particular temperature [1]. Feature: 1. Storage range: -20°C to 70°C 2. Operating range: 0°C to 50°C Application: HSM-20g is considered as ...

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Interface single and Dual IR Infrared sensor with Arduino and LCD

Interface single and Dual IR Infrared sensor with Arduino and LCD Introduction- Multiple Sensor Interface to Arduino In this another tutorial on sensors  for beginners, we are going to interface single and multiple Infrared IR sensors with Arduino Uno development board, working simultaneously and have the status displayed either on an ( 4X16 LCD ) LCD module (jhd162a) or an LED. We are going to cover three ...

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Use Arduino to Interface with a Remote Controlled Power Switch

Update: check out the RFToy — an easy-to-use standalone gadget to control remote power sockets. Also, support for remote power sockets have been added to OpenSprinkler firmware 2.1.1. For a while I’ve been looking for a way to switch household power line (110V) devices. One of the simplest options is to use a relay that is connected to the power line. This is easy in concept but quite dangerous to work with ...

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Doorbell to Arduino ‘Interface’

Hi Everybody In my first Instructable I want to show you how to build an cheap and easy Doorbell to Arduino 'Interface' so you can let your Arduinoproject get triggered through it or simply use your Arduino as a bell. Almost endless possibilities :D Step 1: What you need... Here's what you'll need, its not that much...^^ First of all you need the 'heart' of the interface, the relay. -My Doorbell has 12V DC ...

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Programmable auto filter interface for C64 using Arduino

Overview A software / hardware combo that allows for control of the analog filter inside a Commodore 64 that is running Cynthcart from a host computer (eg, Macbok, PC). Software • 16-step filter sequencer • Set the speed of the filter sequence (with intervals between values reaching 2ms) • Set the length of the sequence from 1 to 16 beats • Offset value allows for shifting the filter values up or down on a ...

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MP3 Interface for Arduino

I have added a follow-on to this Instructable: http://www.instructables.com/id/Cheap-and-Easy-MP3-Shield-for-Arduino/ The follow-on shows you how to design, etch and build a PCB shield to connect the MP3 to the Arduino. Replaces the analog switches with a 74HC244. SIngle layer board with large surface mount component design. Only 5 thru holes. Take a look. Ebay abounds with sales for REALLY inexpensive MP3 ...

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3 wires interface for LCD display using Arduino

This post is based on the work made previously by tomek in wiring LCD displays using 4 bits. The basic idea is to group the 7 pins that are needed to drive the LCD in only 3 using a shift register. This is a cheap alternative to serial LCDs. The schematic shows that wiring the LCD is a simple operation. It has been drawn in a way that makes it possible to develop this as part of a single sided PCB including ...

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