Uploaded January 2019 | Updated September 2026, 2 weeks ago

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In this video we take a look at the automated tester I built for my Power BLough-Rs using an Arduino Nano. This is probably one of the most useful things I've made with an Arduino and has genuinely saved me hours already.

The Power BLough-R is a really simple way of solving the USB backfeed problem often seen when using Octoprint with your 3d printer. Check the Tindie page for more details.

Power BLough-R on my Tindie: tindie.com/products/brianlough/power-blough-r

Power BLough-R on TH3DStudio:
th3dstudio.com/product/power-blough-r-pi-usb-power-blocker

TH3dStudio YouTube channel: youtube.com/channel/UCekvKgud0V10fsonm8n-aYw

(Just as BTW, This video is not sponsored, I have not received anything extra for making it or was a video ever discussed as part of the original deal )

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Code
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Code for the tester: github.com/witnessmenow/Power-BLough-R-Tester

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Parts used
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Arduino Nano* - http://s.click.aliexpress.com/e/bl7VleKM

Nano Screw Terminal breakout* - http://s.click.aliexpress.com/e/cfG0WT1A

10pc Male USB to DIP breakout* - http://s.click.aliexpress.com/e/cqUNPW8g

10pc Female USB to DIP breakout* - http://s.click.aliexpress.com/e/bj6Dwu7Q

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My Tindie Store:
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I've started to sell stuff on Tindie, check it out!

tindie.com/stores/brianlough

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Other Platforms:
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Twitter: @witnessmenow - twitter.com/witnessmenow
Instagram - instagram.com/brian_lough
Instructables: witnessmenow - instructables.com/member/witnessmenow

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Support the Channel:
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Buying anything through the following links will help support the channel and not cost you anything extra.

Amazon.co.uk: amzn.to/2g7mJIO
Amazon.com : amzn.to/2ykDQ42

Aliexpress: http://s.click.aliexpress.com/e/wdhojba

LCSC (where I buy most of my parts for Tindie stuff): lcsc.com/?promote=ODM5ZTB5NlkwNUN3bkNCZUtGb0ZlSWFKTGJIaTl3WThNWldwU0R6QndkZ3prNWdPemlTcG5XSi94U1Zpc0g5Y3MwYjFOUTNIZjJLbGhwWllsZ3N5QnR2WkZRdXMvdGVFcVhJWlJOdnNBV1U0RDZuY1M4TFlqZWNQYUo4RkN6VVJ2c0J4MTcvU3NEdw==


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My Tools & Kit*:
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Ts-100 Soldering Iron
- UK : amzn.to/2nlOF23
- US : amzn.to/2jDcyxl

Logitech C920 HD 1080p Pro webcam
- UK: amzn.to/2pnxk9Z
- US: amzn.to/2BsLMiF

Blue Snowball USB Microphone
- UK: amzn.to/2C0x4TH
- US: amzn.to/2DEA85J

Self Adjusting Wire Strippers
- UK: amzn.to/2C0urkR
- US: amzn.to/2BXQAh1

*= Affiliate Links

#arduino
#maker
#testing