Author Archives: jbrink

Current Shunt

Introduction Like many of the projects that I take on they generally start out as a hobby, a few of them turn into commercial projects but most do not. I have no idea if this project will be commercialized, after all there are some really good smart shunts already on the market. But hey… thats […]

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Setting Bluetooth Range Expectations

When I was looking at designing the Level Up module I wanted to get a sense of any pain points and the reasons that would trigger purchasers to return their products. It didn’t take long before I noticed a common thread. The commenters were clearly frustrated with two aspects, but we are going to focus […]

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EMS Installation

When we bought our EPro 19FD, I was informed that I should buy a good surge suppressor and power monitoring device to protect our new trailer and all its valuable electronics. My first thought this is overkill… right? After all we had camped with a tent trailer for 20 plus years and never had an […]

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EPro Electrical Schematic

Introduction Back in the summer of 2023 we experienced a rather strange electrical problem with our trailer. We had a situation where there was no DC power in the trailer. No lights, fans, radio, tv, etc. It was the strangest thing. All the circuits worked fine when: The battery charging, power jack and the brakes […]

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Cyberdeck Rugged Battery Case

Introduction So what do you do with a spare Nanuk 905 IP-67 case? You design and print a 3D insert for said case to store… wait for it … batteries. I can hear you all now… that’s completely ridiculous! Well of course it is, but thats not really the point. The point is, because I […]

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Ultimaker S5 – 4 Year Review

Introduction After looking around for a semi-professional 3D printer for six months, and then agonizing over the price for another six months I finally purchased a Ultimaker S5 Pro bundle in January 2022. Why I Bought It I bought my first 3D printer for rapid prototyping in 2020-2021. I started off with a JGAurora A5 […]

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Lifting our EPro 19FD

One of the things that I really disliked about our 19FD was the low ground clearance. The sewer cleanout and the stabilizer jacks have been a constant source of worry for me. We have also had issues trying to fill our sewer tote on some sites as the sewer cleanout was below the top of […]

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2020 – EPro 19FD Review

Introduction We purchased our EPro 19FD in August of 2019. The unit is a 2020 model year. I should point out that we still love this trailer, as you could be forgiven for thinking this trailer has had its share of issues, which I would argue that it has. If you have never owned a […]

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SP0256-AL2 Speech Synthesis from the 1980’s

So back in the mid-1980’s,  I came across the SP0256 Narrator Speech Processor from Radio Shack. The chip was manufactured by General Instruments or more specifically General Instruments Microelectronics.  The company had a number of 8-bit and 16-bit microcontrollers, along with some ROM, EAROM (electrically alterable ROM), and telecommunications chips that were spun into a division called Microchip.  […]

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USB 2.4GHz ISM Spectrum Analyzer

Introduction As with most of my projects this one has been on the drawing board for a while.  Well over two years in fact.  This project is looking to scratch a very specific itch, specifically to augment Wi-Fi measurements with noise measurements. If along the way we happen to add additional features that extend the […]

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