Once again, I was eBay, this time looking for a cheap signal generator to use with the oscilloscope that I had purchased. This is a quick look at the various options available.
I bought a Raspberry Pi in Thailand at the start of the year. I got it working with a Motorola Atrix Lapdock (Lapdock for Motorola ATRIX 4G 11.6″ Motorola AT&T) that I purchased new on eBay for about £70, from Israel.
It has a Hebrew keyboard and the brackets glyphs are on the incorrect keys, but apart from that it is fine.
I then built an Arduino Hoody (which is equivalent to an Arduino shield), as described in the Instructables guide: The Raspberry Pi – Arduino Connection
How did I get into Arduino? That is a good question, and one whose answer will entail the discovery of Stack Exchange, Super User, just before Xmas 2014. I think I was just looking for an answer to a Wi-Fi issue that I was having with a Mac. That then led on to me exploring the SE network, and finding SE Raspberry Pi, with with I was already familiar, having heard about it in the British press (i.e. BBC News). Then there was a question asking something along the lines of “What should I get – an Arduino or a Pi?” I had never heard of Arduino and so did a bit of googling, at bit of researching, and then a lot more googling and researching, and realised that this was something that I wanted to get into.
I got hold of the excellent ebook, Building Wireless Sensor Networks – A Practical Guide to the ZigBee Mesh Networking Protocol, by Robert Faludi, published by O’Reilly. download it here or here. (Useful links: errata and; code).
I read a good part of it on Valentine’s day 2015 in Viva8, a kicking bar in Chatuchak market (the [in]famous big one in BKK, where you can buy snakes, dog meat, dinosaurs and old sets of false teeth).
I was hooked, they looked great, and the book was full of interesting projects. I soon figured out what was what, and what was required, or rather what I required.
I was living in Bangkok, and had resurrected my past interest in electronics, most notably through using Arduinos. After playing about for a few weeks I realised that I sorely needed a digital multimeter (DMM). I already own one, from my days at University, 27 years ago, a M-776 Precision Gold Autorange Digital Multimeter (with transistor tester and display hold) from Maplin. Cost me £20 at the time, which seemed like a lot of money back then (For a pound you could do the week’s shopping, have a night out on the town, entertain some ladies and still have enough money to get the bus home – not any more, eh?), although I seem to remember it being a top of the mid-range model, so worth it.
I have still got the box it came in!
Anyway, I digress… so the M-776 was no good to me back in the UK, when I’m in BKK, so I thought that I might as well splash out and get a new one, for two reasons:
Now, which one to buy?