Radiant Tech Note: One Node, Three Masters – Sharing a Gyro Line with an Altimeter and an MCU How we taught one humble analog node to be a gyro output, an MSP430 ADC input, and an I²C clock line… all at once. 1. Background: When a “Simple” Turn Coordinator Grows Up Radiant’s SafeTurn  started life as a portable digital turn coordinator with an inclinometer (“the ball”). Simple idea: Solid-state yaw gyro Nice LCD Battery power No vacuum, no spinning iron, no drama. Then reali

Radiant Tech Note – November 25, 2025 When a “Drifting” Inclinometer Wasn’t the Problem Editor’s Note At Radiant Instruments, we’re using AI as a genuine engineering partner to speed product development. The story below is a good example. James Wiebe drives the concepts, experiments, and decisions. An AI assistant helps track subtle interactions in a 4,500-line embedded program, suggests hypotheses, and occasionally guesses wrong. James challenges it, corrects it, and togethe

Last week I had the pleasure of speaking at  Tabor College  for the Nachtigall Lecture Series, and I was also invited to lecture in a couple of Computer Science classes.  I walked away from the whole experience — and from conversations with Dr.  David Janzen  and the students — with a real burst of energy. What Tabor is doing in Computer Science is genuinely cool. David also showed me the plans for the new entrepreneurship center… very nice! I’m hoping that center becomes a p

Radiant Technical Note 11.6.2025 Using Radiant Turn Coordinators on 28 V Aircraft Electrical Systems (Not applicable to SafeTurn portable units) Applies to: Radiant Turn Coordinator products, when operated from 24–28 V class aircraft electrical systems (“28 V” systems). Does not apply to: Radiant SafeTurn portable units (self-powered; do not add this resistor). 1. Background Radiant Turn Coordinators use a robust linear power chain: External Bus → 9.5 V Pre-Regulator → 5.0

SCARP Update – Technical Deep Dive Friends, many of you have been patiently waiting on SCARP, and I owe you a deeper look into what’s...

Shame on you, AVWEB. A misleading article , a humorous and mal-created picture, a lack of expertise on the subject , and a basic grovel...

AirLite Tactical Radio, FKA "SCARP" Here are two demo videos. One is at KAAO (Jabara) and the other is KICT (Eisenhower Mid-Continent)....

Contact jamespwiebe@gmail.com if interested. I am selling an engine project, which consists of a NOS 22HP 670cc V-Twin 4 stroke engine...

Contact jamespwiebe@gmail.com with questions. I'm moving all of my airplane activities to a new location. As a result, I'm "cleaning out...

As Radiant is a private company, I won't release our sales. But I will do something unusual: I will provide a sales comparison to the...

Radiant is committed to providing our customers with the highest value and quality of products, so that you will have a fun experience...

I last flew a Cessna in 2007*. I recently decided to join the Air Capital Aviation Club, which owns three C172s and two C182s. Yesterday,...

Although we've done final assembly for our electronic products (even hand-building many products over the years) Radiant does procure PCB...

A customer with access to a certified pressure chamber recently tested SafeAlt. (SafeAlt is our portable altimeter with alarm.) SafeAlt...

I turn over and look at my alarm clock. It says: 7:36. For the last six minutes, I've been waking up and thinking about tariffs. Also,...

Lost details of the "American Cri-Cri" emerge, including an in-flight image clip. Today, I am thankful for Gene Stratton. He worked for...

I wasn't expecting to do this a few days ago, but here it is. I am placing the professionally built molds for SkyDock up for sale. They...

I started development of an aviation receiver a year ago. Now, the fundamental receiver technology is solid and producing phenomenally...

SkyDock.... Loved that plane. But first, a note from our sponsor, Radiant Instruments. Please check out the full line of aircraft...

While Chipper 2 was the most loved aircraft I ever designed, another design called "SkyDock" was the most interesting. Utilizing a...