Archive | News

AltimeterThree is Chute Release-aware

For model rocket enthusiasts who use Chute Release, the latest version of the AltimeterThree app now calculates descent rate before and after Chute Release opens. So now you can measure the rocket’s tumble (or drogue) descent rate, then the final landing speed. To update your app to the latest version, go into the app store […]

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User Testing of Chute Release

Tom Disch of WOOSH (Wisconsin Organization of Space Hobbyists) conducted a number of real-world tests of Chute Release, and wrote a great article in his club’s newsletter. WOOSH Newsletter May/June 2016    

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Using Chute Release at High Elevation

If you launch rockets at a location with high elevation, such as some areas in Colorado and Utah, and your Chute Release has version 1.1 firmware on it, you should send it to us to update the firmware. For most people, this will not matter. Chute Release doesn’t care how high your flights go, but […]

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Chute Release Test Flights (with updates)

(If you haven’t done so already, please read our earlier posts introducing this upcoming product.) As flight testing of Chute Release has gotten underway, I wanted to begin sharing early results. Here’s a look from a flight today in California. Other test sites include Minnesota, Colorado, and Washington. For our setup, we used an Estes Leviathan flying […]

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How to Operate Chute Release

As flight testing begins, the user interface for Chute Release has arrived at what we think will be the final version. We’ll see how well it works out during actual usage. Let’s take a look at a pre-production copy of Chute Release (the final will look much more polished). The LEDs are quite bright, because […]

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Chute Release for Rocketry Ready for Testing

Those of you who have heard me talk at the National Association of Rocketry annual meetings know that Jolly Logic has been developing a parachute deployment product for model rocketry which gives you control over when your parachute opens. (If you are into rocketry and you’re curious about what we’re working on, the most recent talk […]

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AltimeterThree’s Glider Mode Put to the Test

Aris Kosmides is an avid RC flyer in Thessaloniki, Greece. He was curious to see how well AltimeterThree would perform in his gliders, and here’s his report on his experiences. AltimeterThree by Jolly Logic This new gadget is a very interesting tool for RC enthusiasts. I had the chance to test the unit, and I […]

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Reliable AltimeterThree Connections

If you begin to suddenly have trouble connecting to AltimeterThree from your phone—or downloading flights—it may be because your battery is low. It’s a good idea to keep your altimeter fully charged, and that goes for any product you might have that uses a rechargeable lithium battery. Lithium batteries like to be kept fully charged, […]

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AltimeterTwo Version 4.1

AltimeterTwo Version 4.0 Enhances Ejection Detection

AltimeterTwo is great for automatically analyzing rocket flights. But there have been situations where it mistakenly thought that parachute ejection occurred right as the motor stopped firing. For most rockets, this situation was not encountered. But if your rocket naturally decelerates very rapidly after burnout—because of the right combination of large diameter, high drag, or […]

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How AltimeterThree Influenced Last Year’s Designs

When we updated AltimeterOne and AltimeterTwo in 2014, a few changes were obvious improvements: But what was somewhat surprising (for those who appreciate our emphasis on keeping things small) is that the products were slightly LARGER than their predecessors. Why was this? The reason is that the products were to share their form factor with the […]

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Metric Bug Found

If you use your altimeter in metric mode and have a new generation AltimeterOne Version 2.3 or AltimeterTwo Version 3.8, you should send it to us to be upgraded, because we have found a bug that incorrectly displays metric units in these particular versions. The data is measured and stored correctly in feet, but the […]

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The Next Generation

The look of AltimeterOne and AltimeterTwo have changed. Here are the main differences between the “classic” versions and the new ones: Graphic displays, with animation and fonts More powerful batteries Standard Micro-B USB connector Flash storage for 100 flights Replaceable LCD and battery There are other, more subtle changes, too. We’ve taken suggestions from you […]

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Quadcopter High Altitude Flight

Jesse Ferrell, who works for Accuweather, strapped an AltimeterOne to his Phantom quadcopter in the field of view of this GoPro camera and captured this flight up to just under 2,000 feet. The quadcopter was actually out of control range, but returned via autopilot to Jesse. Switch to HD resolution to see the real-time altitude […]

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Video: Trends in Rocket Electronics

Jolly Logic’s founder John Beans discusses the ways that electronics can improve rocketry (including some upcoming products) in this presentation to the National Association of Rocketry’s recent annual convention. His talk includes discussion of wireless tracking, electronic parachute deployment, and integration with Apple and Android mobile devices.

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Free Shipping

If you haven’t already noticed, we ship for free within the United States. According to the postal service, shipping via USPS First Class means that your package will arrive within 2-8 days. However, if you live in Northern California, you may get your purchase the next day! So if you need your purchase in a […]

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Beta Testers Needed

Interested in being part of the development of new products? Jolly Logic is looking to expand its beta testing program for upcoming products. Beta testers help by testing new product prototypes in order to help us as we develop the firmware and get the features to work as easily and reliably as we can. Sometimes […]

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Sneak Peek: Even Cooler LCDs

It’s not quite time to release information yet on our next round of products, but we can offer a sneak peek into one of the new components that will be on display (pun intended) when we do. We love clear, easy-to-read displays, but as our products get more sophisticated and powerful, the displays need to […]

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A High Performance AltimeterTwo Mount

Interested in wringing the most performance possible out of your AltimeterTwo? Steven Collins has written a step-by-step guide that walks you through both the math and the construction of a special mount that orients the AltimeterTwo at just the right angles to extend its acceleration range to 40 Gs. So if you think your rocket […]

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