Arduino Yún - Power Usage

Last year during Black Friday weekend, I broke down and bought an Arduino Yún from Pololu. They had some great sales and I just couldn't pass it up. If you haven't heard of Pololu, go check them out right now. I'll wait till you get back. See? They have great electronics and tons of robot stuff. I love their power boards, boost\buck boards and ones that do it at the same time. Anything you need they have it.

Arduino Yún with USB Tester

Bitcoin Now Accepted!

We are happy to announce that FriedCircuits Shop now accepts Bitcoin! Products are still shown in USD but when you check out you have the option of selecting Bitcoin and it will show the total at the current exchanges rates. We are using Coinbase.com as the payment processor so if you have a Coinbase account you pay directly that way. If not, you can scan the QR code to pay with your mobile app, of course you can just copy and paste the wallet address and the amount to pay to use with your desktop app. Once payment is sent, just click confirm. It's that easy!

We are all for supporting the Bitcoin community. We'd like to help it grow to become a more dominant currency for everyone, not just for us Tech savvy types.

A Day in the Life of Digi-Key

We buy the bulk of our parts from Digi-Key for the products and projects we make at our home office. Prices are great and you can rest assure that you will not receive any counterfeit parts. When you order something online, I always wonder where its been and what it went through before landing into your excited hands. I recently came across this awesome slideshow from IEEE Spectrum that showcases what it's like at Digi-Key.

IEEE Spectrum

USB Tester Backpack 2.0 Review

Thanks to aerodynes, for the great review of our new USB Tester and Backpack 2.0.

"This is a test and review of the new version of the FriedCircuits USB tester and backpack. If you read my previous articles on the backpack and its extensions, you already know that I am a big fan of this simple and very useful tool. ..."

Read the complete review here:
http://www.aerodynes.fr/2014/02/05/friedcircuits-usb-tester-and-backpack-reloaded/

Back in stock: USB Tester Bundle 2.0 and Backpack 2.0

 

Available both on Tindie and FriedCircuits.us.

New Product: USB Tester 2.0 Bundle!

After months of development, the USB Tester 2.0 Bundle has arrived!

Currently available on Tindie and soon on Friedcircuits.us

USB Tester Bundle 2.0
USB Tester Backpack 2.0

The bundle includes both a new version of the Backpack and USB Tester. At this time, the new USB Tester is only available with the bundle.

New on Backpack

• Micro USB
• Button Location on the front left
• 128x64 OLED Display (Double height of the 1.x version, easier to source)
• Voltage monitoring of the USB Data lines
• Easier access to almost all the extra GPIO’s

New on USB Tester

• Micro USB
• Separated voltage test points (Easier to attach test clips and avoid misplacing jumper)
• Better labeling
• Standard Dual Banana spacing 0.75in
• Standard test probe sized test points

New Firmware Features (Will be available for 1.x version)

• Peaks
• mWh and mAh tracking
• Big Readout Display
• JSON for serial communications

Updated Java App (Beta)

• Implemented JSON over serial
• Will save as CSV
• Add display of new data values
• Working on graphing some of the new data

We’d like to thank Ed for all of his help and contributions.

http://www.aerodynes.fr/2013/09/08/fried-circuits-tester-multiscreen-and-energy-measurement/

Angstrom Yocto 1.4 from Source

Going down the ROS road has been a long one. Full of hair pulling (if I had any) but also a huge learning experience now that it is working. Due to some of the requirements for mjpeg-server I had to compile Angstrom from source so that I can use the branch for Yocto 1.4. In turn this has lead to having to compile other components like the WiFi driver.

Compiling from source isn't too bad as it uses the same Bitbake process used for recipes. The hard part is flashing the SD Card and then flashing the eMMC. I am not sure if  I did it the "correct" way but in the end it worked. This is how I did it...

BBB: Getting Setup, Updating, NTP, WiFi

This post comes after having a few issues and deciding to redo my BeagleBone Black.Unlike the Raspberry Pi, there are few things you need to do, like loading the latest image, WiFi, and NTP.

Your Beaglebone Black may not come with the latest image but after flashing there are still updates by running the opkg update and opkg upgrade. This takes a long time to run. Once complete, the SSH session will be disconnected and you can power cycle. If you have connection errors it's a problem with DNS and you can add the feed URL to the hosts files. https://groups.google.com/forum/#!topic/beagleboard/Kyq1NQOFSns Running an upgrade is optional; it will run fine without it. 

Download the latest image:
http://downloads.angstrom-distribution.org/demo/beaglebone/

Download the one with BBB-eMMC-flash-XXX.img.xz