Author Archives: R-B

PiNoculars – A Raspberry Pi powered Binoculars

Posted on by One comment

Joshdont has shared his Pinoculars- a raspberry pi powered binoculars project on Instructables:

Raspberry Pi powered binoculars

Raspberry Pi powered binoculars

Strap a Raspberry Pi 2 + Camera to a pair of binoculars (or telescope, microscope, etc.) and use one of adafruit’s touch LCDs + custom raspbian image to view and take pictures. (Scroll through the photos above for examples / comparisons)

This project takes more time, money and is clunkier than if you were to purchase a commercial product. You’re probably not on instructables because you wanted to buy a solution ; )

There are two sets of instructions here! See the images and video above for a brief overview. The first few prep steps are the same for both. Once construction starts you have a choice between a “Quick & Dirty” version that anyone can do, and an “Over-engineered” edition requiring fancier tools (laser cutter or power tools) and more time.

Cyber Monday 2015 Discount Coupon

Posted on by One comment

We offer 11% discount on our major products, including pulse sensors, Arduino Uno, power supply board, SPI 7-Segment Displays and Easy Matrix modules. The coupon code is 9398BDD and is valid from Nov 29 through Dec 01, 2015.

Easy Pulse Sensor

DIY pulse sensor based on principle of photoplethysmography. Designed for hobby and educational applications to illustrate the principle of photoplethysmography (PPG) as a non-invasive optical technique for detecting cardio-vascular pulse wave from a fingertip. The sensor provides analog PPG output as well as digital pulse output which is synchronous with the heart beat.

Click here for the deal
Easy Pulse Plugin

Easy Pulse Plugin also provides all necessary instrumentation and amplification on board to detect the cardiovascular pulse signal from the fingertip. The most important characteristics of Easy Pulse Plugin is that it can be easily plugged into the left headers of Arduino Uno (or its compatible clone) board for easy interfacing, and the analog pulse signal can be fed to either A0 or A1 analog input through a 2-pin jumper selection.

Click here for the deal

Easy Matrix LED display

 Easy Matrix is a cascadable 8×8 LED matrix module with the MAX7219 chip on board, which allows to control the display with only 3 I/O pins from microcontroller. Multiple Easy Matrix modules can be easily cascaded to make a bigger-size display through precisely aligned male and female headers on opposite sides of the display.

Click here for the deal

Multi-purpose power supply

 This is a dual-voltage power supply board that provides fixed 3.3V and 5.0V outputs from an unregulated DC input ranging from 7-12V. With its small size (1.8″ X 1.4″), it can be easily enclosed inside a project box along with your project circuit. It uses LM78M05 and LD1117-3.3V fixed voltage regulator chips that are both capable to deliver 500mA of output current.

Click here for the deal
And many more. Click here to see all deals.

 

 

IoT temperature monitoring device

Posted on by Leave a comment

This temperature monitor IoT device uses ESP8266 and DS18B20 to report a remote temperature measurement to a mobile app and also sends an email to the user if the temperature goes below a set threshold.

IoT temperature monitor

IoT temperature monitor

To complete this project you will have to create three things

  • Hardware – Basically you have to hook up the temperature sensor to the ESP8266 board and upload the Arduino code.
  • Cloud device – Create the logic that drives the decision making using the IC2Cloud platform www.ic2cloud.com
  • Mobile App – Create the mobile App using AppInventor to monitor and control your temperature appinventor.mit.edu

This project can be easily extended to monitor different thresholds and if combined with an actuator it can control a heating/cooling system.

 

ESP8266 controls an AC outlet for lamp

Posted on by Leave a comment

Gary shares his ESP8266 controlled on/off switch for a lamp.

The first step is to find a case to house the parts in. I had an old TP-link router case that I used. It already had a two prong spring out 110v connections but any box will work. When planning your boxes figure out how your going to get the AC in and out of the box. A stop at your local bigbox hardware store should give you lots of idea. At a minimum a deepwall outlet/switch box will work but use your imagination. My project only uses 2 wire as thats what the case supported but if your planning on switching anything other than simple lights use a 3 wire system and include the ground.

If your not sure about what wires goes where take a look online on how you would add a simple manual switch to a circuit and just replace the switch with your device.

On/Off AC outlet switch using ESP8266

On/Off AC outlet switch using ESP8266

« Older Entries Recent Entries »