Monthly Archives: November 2013

Adafruit NeoPixel Ring as LED “mood” light

Recently I picked up a couple of Adafruit NeoPixel Ring boards – didn’t have anything particular in mind for them but they’re LEDs and you just can’t have enough LEDs 🙂 The first impression is of the overwhelming build quality … Continue reading

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LOL!

Last year I picked up 3 x Olimex 10mm “LOL” (Lot’s Of LEDs) shields on eBay – they didn’t cost much, which is probably just as well since I haven’t done a lot with them. They’re the original Jimmie Rogers … Continue reading

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Pulse monitor

A few weeks ago, I bought one of these. The documentation and Arduino code provided for the pulse sensor is fantastic, although their visualisation software is for Processing which I’ve never really bothered with – I’m planning to write my … Continue reading

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LT1302-5 Boost Converter – Scores on the doors

Well, despite me describing the Sparkfun boost converter as “crap”, or whatever I said. All my efforts to beat it have failed. I’ve tried different caps (very low ESR), different inductors and various other variations on a theme. The best … Continue reading

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Current(ly) making sense…

Ok, so last night I soldered the TS1100 to a DIP adapter. Haven’t been able to do much tonight but I couldn’t wait to have a play with this piece of kit. The datasheet says that Vout = Iload x … Continue reading

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Just a bit of fun…

I picked up some TS1100 Current Sense Amplifiers last week. They’re about 3mm x 3mm in a SOT23-5 surface mount package so I bought some adapter boards from eBay – unfortunately, those were for SOT23-8 and won’t do (I should … Continue reading

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LT1302-5 High Current Step-Up DC-DC 5V Converter

Some time ago I bought a SparkFun PRT-08248 2 x AA Cell to 5V battery box with built-in step-up converter. I’ve never been that impressed with it to be honest, it just didn’t seem to last very long given the … Continue reading

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