Potential Flaw with a Voltage Regulator

In the updated version of my Ultimate Lora Backplane I was considering on changing the linear voltage regulator used to a switching one, this would mean while adding £3 to the BOM that it would be possible to use a 12V Power Supply instead without producing a lot of heat. As during some testing with the linear I measured 3W at 7.5V and 6W at 12V of which almost all of the 6W would be getting wasted as heat. I did the initial testing with the switching voltage regulator and measured around 3W at 7.5, 9 and 12v,…

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Ulti Lora Backplane V2 - Redesigning it, the plan

ohno here we go again. Of which I'm re-designing the Ultimate Lora Backplane! Whats changing? While the current one works great, there are a couple of flaws: Power & Heat - The NanoPi Duo produces quite a lot of heat and can draw quite a lot of power even while its not doing much CE Mark - The NanoPi DUO Has no CE / FCC Marks. Theoretically with a CE Marked SBC and a CE Marked Radio Concentrator it would be a fully CE compliant device as the board connecting them should be exempt. New plan: As of this I am…

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Ulti Lora Backplane - 1 Week On

Just a short blogpost following up on the Lora Backplane I designed. One of the main concerns was temperature. And while I didn't think it would be much of an issue because it has to be in a sealed box it was overheating to around 80 degrees. However since changing the powersupply from 12v to 7.5 this has dropped dramatically to around 50 Degrees peak. Very acceptable :D Otherwise the gateway has been working perfect and more reliably than my original Pi Zero setup over Wi-Fi. Improvements still to do Multi Packet Forwarder I'm still trying to sort out…

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My "Ultimate" Lora Gateway Backplane

My "Ultimate" Lora Gateway Backplane

A DIY Solution I'd be happy to use as a stable alternative to a premade. I've been working on this project for about a month and a half now with changes along the way. If you follow me on twitter you'll have likely seen the progress I made. I've also been posting devleopment updates at https://hackaday.io/project/90405-ultimate-lora-gateway-backplane This post will be a mix of a summary / analysis of the current design. Designing the board I wanted to build a DIY Gateway solution which I'd be happy to put somewhere and leave. My current gateway is on the…

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Blog Migration In Progress

My Blog has been down for around 16 hours now with the current host, cough scaleway cough. As they don't seem to care about their SLA or customer service I've moved back to Digital Ocean, at the time of moving to scaleway Digitalocean were still quite expensive. However now they've reduced their prices to offer a VPS for $5 a month, with 1GB of Ram and one CPU. While less in spec from previous experience their customer service is much better. I'll be starting to work on my ultimate lora backplane blogpost today and hopefully be able to move the…

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Best Method of Raising Funds Online For Small Projects

When funding the first Great Yarmouth TTN Gateway I originally setup a fundraising page while I was selling a few old bits I didn't need to also fund it. This article is intended towards makers who may want to raise funds for small projects they're working on or events etc. GoFundMe I used GoFundMe for this as it seemed to have the right balance of allowing projects that would be counted as funding personal things, and I had one person donate £10. However when I went to withdraw the total fees worked out at around £3! It seemed pretty pointless…

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Fun with overclocking old tech!

Fun with overclocking old tech!

If you have a Desktop computer of any kind you'll likely have overclocked it slightly in some way, weather you've done a slight tweak on the CPU, GPU or gone full out on maximizing both. But to be honest, it's quite boring overclocking sometimes now. While my CPU has had a bit of an increase my motherboard isn't designed to overclock, My GPU can overclock a little but wasn't enough of a gain to make it worth the extra heat and power consumption. However I have recently re-installed my Windows XP / 7 Gaming rig (Specifically the Windows 7 Drive) and…

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Adventures in LoRaWan & TTN Part 6 - Re-mapping & Improvements

Adventures in LoRaWan & TTN Part 6 - Re-mapping & Improvements

One thing I didn't realise is that Part 5 posted before Part 4. Seeing as I missed Part 4 I thought I'd merge it into a Part 6. Since I got my gateway I've done a lot of mapping and experiment mapping at different SF factors. However a lot of this data has had changes inbetween with improvements made to the gateway by shortning the cable to the antenna, a better U.FL to SMA Connector and more. However as shown below quite a lot of the data is outdated with the range with some measurements being over a month…

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