Revision F Prototype updates

Dear Reader – Here are some more updates about the Revision F (6th generation) prototype designs.  These are the designs we’ll be pushing through the various regulatory processes that will allow us to manufacture and ship the Mooshimeter. SD Card and Reset Button Access On previous versions of the meter, the SD card has been […]


More retention features on enclosure

Hello Reader, Here’s another good idea from our backers – adding retention grooves to make strapping the meter to structures easier. So here are 4 notches appropriately sized for zip ties. Now you can more securely strap your Mooshimeter to just about anything! We’ll be 3D printing a few to get a feel for the […]

dragonscales mooshimeter

Campaign By Numbers

One of the fun parts of this campaign was watching the back-end analytics.  I want to share some of the interesting moments and numbers with you. The Launch The first few days had three distinct waves of traffic: Friends and Family drived a healthy start, and within 10 hours of launch we had raised 10k […]


New Lanyard Loop and Enclosure Cleanup

Hello Reader, As our funding campaign is drawing to a close, we finally have a little more time to start polishing up our betas as we get ready for regulatory testing and mass manufacturing. I implemented some of the suggestions that have been coming in both from our friends at Dragon Innovation and from our […]


Quick Solar Panel Demo

Dear Reader, Far too often I’ve seen solar enthusiasts struggling with two-meter setups to try and calculate the true power output of their solar panels. Switching back and forth between two meters as clouds and trees occlude the panel makes getting a good reading very difficult! So here’s a quick demo of how easy the […]


Measuring Small Resistances in Live Circuits

Dear Reader, Brian Benchoff just posted about this demo on Hackaday (Thanks!), and we thought we should add some commentary. Usually to measure resistance, one must remove the resistive element from the circuit and connect the meter across it. Sometimes that’s impractical or impossible. If you know the voltage across an element and the current […]

The two voltage channels share a common line.

Power Factor in a Blender

Dear Reader, Recently Eric posted an educational entry on Power Factor. To demonstrate some of the AC measurement capabilities of the Mooshimeter, I set up a quick demo to measure power factor and harmonic distortion in a kitchen blender. Like many blenders of a certain era, it has two “Major” settings – Low and High […]

Will It Blend: PF Setup

Why do I care about Power Factor?

Bad power factors cost you money in the form of extra wire losses and increased strain on the power infrastructure.  They reduce the amount of usable energy a circuit can provide but are often overlooked because they can be difficult to measure.  This post talks about what power factor does to a system and how […]

We are funded! Next up: Stretch Goals

The Mooshimeter crowdfunding campaign has hit its goal with more than a month remaining!  It has been a real trip so far, and I’ve already blown through one keyboard’s F5 key tracking progress.  Now we get to further refine the Mooshimeter to better suit your needs, based on your comments, suggestions, and stories.  To that end, […]

Mooshimeter <-> Tessel

Dear Reader, We’ve been talking to our friends at Technical Machine about the possibilities of integrating the Mooshimeter with their flagship product, the Tessel. The Tessel is “Hardware for the Web” – it’s an ARM Cortex M3 with a wifi connection (through a CC3000) and expansion slots for a wide variety of sensor modules.  The […]