Here’s a Motor Control via Proximity Sensing. In this article, we go step-by-step through the process of understanding, designing and building a system that uses an infrared proximity sensor for input, correlates that input to how far away an object is from the sensor and then drives a motor and some LEDs at distinct speeds depending upon the proximity of the object.
IR Proximity Motor Control - [Link]
The Protocol Analyzer is a small tool that can catch, analyze and decode “slow” pulse based protocols. Typical examples are IR-Remotes or RF-Remotes. It uses the microphone input to read the signals. Since this is almost always available with drivers across operating systems, this tool works without any specific drivers on Windows, Linux and OSX. [via]
Protocol Analyzer can decode a number of standard protocols such as the infrared protocols: RC5, RC6, Pioneer, JVC, Nexa,X10, Pronto (See here for details of which) but the primary task of Protocol Analyzer is to aid in decoding new protocols. It behaves like a combination of an oscilloscope and a logic analyzer specifically aimed at analyzing digital protocols via the microphone input.
Protocol analyzer for IR and RF - [Link]
This is an all-digital-hardware Theremin. The Digital IR Theremin uses comparators, digital logic and a single 555 timer for tone generation to make it so that when you wave your hand in front of the infrared proximity sensor, it outputs a tone with varying pitch depending on how far away your hand is from the sensor!
Digital IR Theremin - [Link]
Raj from Embedded Lab talks about constructing a reflective IR sensor with necessary instrumentation circuit to illustrate the principle of photoplethysmography as a noninvasive technique for measuring heart rate. This project uses the TCRT1000 reflective optical sensor to sense the blood variation in the finger tissue and outputs a digital pulse which is synchronous with the heart beat. The output pulse can be fed to either an ADC channel or a digital input pin of a microcontroller for further processing and retrieving the heart rate in beats per minute (BPM).
DIY Photoplethysmographic sensor for measuring heart rate - [Link]
Chris from PyroElectro writes us with this useful project to communicate serial data over an infrared link – [via]
Here’s an article that explains how to create a wireless infrared transmitter using an IR LED and a wireless IR receiver using a phototransistor to make a communication system. Asynchronous serial is transmitted over this link at 9600 BPS. Two PIC 18F452′s are used to transmit and receive the data.
Infrared serial link using PIC18F452 - [Link]
For use with my home theater PC I developed an IR Transceiver by combining 2 projects (Receiver, Blaster). Note that this device may be taxing of your serial port, I take no responsibility for any damage you cause to your equipment. That said, I’ve provided PDF’s of the silkscreen, copper layout, and the Eagle PCB files.
IR Remote Control Transceiver- [Link]
So I came up with an idea of Cannon DSLR remote control. They are relatively cheap to buy on ebay, or other local online auction sites like allegro.pl here in Poland. But I wanted to build something by my self. As a complete amateur I wanted to make something small, and simple, thus DIY IR remote control for my camera was born. The protocol was reverse engineered by some smart people over the internet, so all I needed to do was to design the PCB, solder the stuff together, write a program and flash it.
Canon IR Remote - [Link]
Circuit Skills – Infrared Light @ MAKE… [via]
Infrared light may be invisible to the human eye, but its usefulness in the world of electronics is easy to see. From simple object sensors to wireless data transmission, IR emitters and detectors can be used in a variety of different ways. And their low cost and wide availability makes them a great choice for enhancing an electronics project.
Circuit Skills – Infrared Light - [Link]
Robot System Description :
- 2 mobile phone vibrator
- AVR ATtiny45 Microcontroller
- IR RC5 Receiver for remote control
- NiMH rechargeable battery
- LED status indicator
- Dimensions 12mm x 10mm x 18mm
Wheels less smallest Robot “ROBO-BijanMortazavi” - [Link]
RGB LCD Arduino Intervalometer @ The Custom Geek. [via]
I am getting ready to sell some kits and wanted a good way to photograph the assembly without fumbling around trying to hold a camera in one hand and a project in the other. The answer? An intervalometer. A device that can send an IR signal to my Nikon, triggering the shutter. The video above explains all of the features including; automatic delay calculation, auto stop, multiple LCD and LED feedback options, Li-Po charging, FTDI headers, and manual control via button or plug-in foot switch.
This project will work with most Nikon DSLR cameras without changing anything, but can easily be adapted to work with Canon, Sony, or any camera that will accept an IR remote.
RGB LCD Arduino Intervalometer - [Link]