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10% off all items in stock code is cronenberg expires 8/31/2016 @ 11:59pm ET #askanengineer https://youtu.be/lbKc6rS9t_8 & http://www.adafruit.com

What is “Ask an engineer”? From the electronics enthusiast to the professional community – “Ask an Engineer” has a little bit of everything for everyone. If you’re a beginner, or a seasoned engineer – stop in and see what we’re up to! We have demos of projects and products we’re working on, we answer your engineering and electronics questions and we have a trivia question + give away each week.

http://www.adafruit.com/ask

#adafruit #arduino #electronics #hardware #opensource #projects #raspberry #computer #raspberrypi #microcontrollers #LEDs #LED #gemma #flora #bluetooth #bluefruit #neopixel #neopixels #wearables #art #askanengineer #showandtell #madewithcode #teamarduinocc #WHChamps #NationOfMakers #micropython

WE ARE LIVE ON YOUTUBE #askanengineer - http://adafru.it/subscribe/
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Adafruit Industries

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I see that there is still space, is there any chance of getting the link to join & show? Please?
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How to Build a Tall Bike
https://blog.adafruit.com/2016/08/31/how-to-build-a-tall-bike/

I wanted to build a Tallbike for YEARS!

It is actually a lot easier than it looks.

Check out how i built mine

Read more
https://blog.adafruit.com/2016/08/31/how-to-build-a-tall-bike/
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➥ How-tos & learning  - 
 
 
Electrocardiography for Cheap: DIY ECG Uses One LM741 Op-Amp, Five Resistors, and ‘Penny Electrodes’
https://blog.adafruit.com/2016/08/31/electrocardiography-for-cheap-diy-ecg-uses-one-lm741-op-amp-five-resistors-and-penny-electrodes/

Also a breadboard – but you could just as easily try to Manhattan-style the circuit as well! (Or, you know, one hundred other ways to make it how you make things.) The schematic can be seen below and links to the code and further write-up can be found here at Scott Harden’s blog.

I made surprisingly good ECG from a single op-amp and 5 resistors! An ECG (electrocardiograph, sometimes called EKG) is a graph of the electrical potential your heart produces as it beats. Seven years ago I posted DIY ECG Machine on the Cheap which showed a discernible ECG I obtained using an op-amp, two resistors, and a capacitor outputting to a PC sound card’s microphone input. It didn’t work well, but the fact that it worked at all was impressive! It has been one of the most popular posts of my website ever since, and I get 1-2 emails a month from people trying to recreate these results (some of them are during the last week of a college design course and sound pretty desperate). Sometimes people get good results with that old circuit, but more often than not the output isn’t what people expected. I decided to revisit this project (with more patience and experience under my belt) and see if I could improve it. My goal was not to create the highest quality ECG machine I could, but rather to create the simplest one I could with emphasis on predictable and reproducible results. The finished project is a blend of improved hardware and custom cross-platform open-source software (which runs on Windows, Linux, and MacOS), and an impressively good ECG considering the circuit is so simple and runs on a breadboard! Furthermore, the schematics and custom software are all open-sourced on my github!

Read more
https://blog.adafruit.com/2016/08/31/electrocardiography-for-cheap-diy-ecg-uses-one-lm741-op-amp-five-resistors-and-penny-electrodes/
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➥ What do you make? ►  - 
 
 
10% off all items in stock code is cronenberg expires 8/31/2016 @ 11:59pm ET #askanengineer https://youtu.be/lbKc6rS9t_8 & http://www.adafruit.com

What is “Ask an engineer”? From the electronics enthusiast to the professional community – “Ask an Engineer” has a little bit of everything for everyone. If you’re a beginner, or a seasoned engineer – stop in and see what we’re up to! We have demos of projects and products we’re working on, we answer your engineering and electronics questions and we have a trivia question + give away each week.

http://www.adafruit.com/ask

#adafruit #arduino #electronics #hardware #opensource #projects #raspberry #computer #raspberrypi #microcontrollers #LEDs #LED #gemma #flora #bluetooth #bluefruit #neopixel #neopixels #wearables #art #askanengineer #showandtell #madewithcode #teamarduinocc #WHChamps #NationOfMakers #micropython

WE ARE LIVE ON YOUTUBE #askanengineer - http://adafru.it/subscribe/
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Homemade Upcycled USB Battery Pack Made from Laptop Battery Cells
https://blog.adafruit.com/2016/08/31/homemade-upcycled-usb-battery-pack-made-from-laptop-battery-cells/

This video shows a homemade fully working USB Power Bank for smartphones and USB devices. The batteries were recycled from an old Laptop Battery.

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https://blog.adafruit.com/2016/08/31/homemade-upcycled-usb-battery-pack-made-from-laptop-battery-cells/
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❖ In the Adafruit shop!  - 
 
NEW PRODUCTS – Silicone Cover Stranded-Core Wires – 50ft 30AWG
Black - https://www.adafruit.com/products/3164
Red - https://www.adafruit.com/products/3165
Blue - https://www.adafruit.com/products/3166
Yellow - https://www.adafruit.com/products/3167
Green - https://www.adafruit.com/products/3168
White - https://www.adafruit.com/products/3169

Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to be able to deal with a lot of bending.

Comes with one 50ft spool of wire, which is 30AWG stranded with an outer diameter of 0.8mm. Available in black, red, blue, yellow, green, and white!

In stock and shipping now!
https://www.adafruit.com/?q=Silicone%20Cover%20Stranded-Core%20Wire%20-%2050ft%2030AWG&
#newproducts #prototyping #wirespools #siliconewiring
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Adafruit Industries

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Electrocardiography for Cheap: DIY ECG Uses One LM741 Op-Amp, Five Resistors, and ‘Penny Electrodes’
https://blog.adafruit.com/2016/08/31/electrocardiography-for-cheap-diy-ecg-uses-one-lm741-op-amp-five-resistors-and-penny-electrodes/

Also a breadboard – but you could just as easily try to Manhattan-style the circuit as well! (Or, you know, one hundred other ways to make it how you make things.) The schematic can be seen below and links to the code and further write-up can be found here at Scott Harden’s blog.

I made surprisingly good ECG from a single op-amp and 5 resistors! An ECG (electrocardiograph, sometimes called EKG) is a graph of the electrical potential your heart produces as it beats. Seven years ago I posted DIY ECG Machine on the Cheap which showed a discernible ECG I obtained using an op-amp, two resistors, and a capacitor outputting to a PC sound card’s microphone input. It didn’t work well, but the fact that it worked at all was impressive! It has been one of the most popular posts of my website ever since, and I get 1-2 emails a month from people trying to recreate these results (some of them are during the last week of a college design course and sound pretty desperate). Sometimes people get good results with that old circuit, but more often than not the output isn’t what people expected. I decided to revisit this project (with more patience and experience under my belt) and see if I could improve it. My goal was not to create the highest quality ECG machine I could, but rather to create the simplest one I could with emphasis on predictable and reproducible results. The finished project is a blend of improved hardware and custom cross-platform open-source software (which runs on Windows, Linux, and MacOS), and an impressively good ECG considering the circuit is so simple and runs on a breadboard! Furthermore, the schematics and custom software are all open-sourced on my github!

Read more
https://blog.adafruit.com/2016/08/31/electrocardiography-for-cheap-diy-ecg-uses-one-lm741-op-amp-five-resistors-and-penny-electrodes/
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DIY electronics, open-source hardware - learn electronics
Introduction
Limor Fried (ladyada) is the founder & engineer of Adafruit Industries. Adafruit makes all-original DIY electronics kits - is a New York City based company that sells kits and parts for original, open source hardware electronics projects featured on www.adafruit.com as well as other cool open source tronix' that we think are interesting and well-made. Limor was on the cover of WIRED and was an EFF pioneer award winner for open-source hardware.
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