Time for a bit more soldering, I think. I couple of months ago I bought a little MAX7219 LED array kit from ebay for a couple of pounds. They are all over ebay and aliexpress. As kits go it is very simple – a resistor, two capacitors, some sockets and some optional connectors. Soldering it …
I have had a kit of parts for a RaspiRobot board in my “to do pile” for a while now. Today I had a bit of spare time so I followed the construction instructions and put it together. Step one was to check I had the right bits. I opened the packet and laid the …
Continue reading ‘Building and testing a Raspi Robot board’ »
Altoids are strange. A simple peppermint confectionery which has achieved an astonishing status among hobbyists of all kinds. The main reason, it seems, is the tin in which they are sold. The Altoids tin has become for many people the de-facto enclosure for hobby electronics projects. So much so that one of the questions in …
I’m a bit of a sucker for cheap little electronics. After playing around with single LEDs and traffic lights for a while I wanted something a bit more interesting, so just over a pound for an “8 Channel Flowing Water Light LED DIY Kit” seemed too much fun to pass up. The circuit is very …
Continue reading ‘Building and testing a “flowing water light”’ »
It’s nice to see old favourite programming languages getting a bit of love. “Circuit Cellar” magazine seems to be running a weekly “spot the bug” competition, and this week (week 2) it looks like a bit of FORTH. It doesn’t say much about the program, but it is heavily commented (much more so than most …
Continue reading ‘Think you know FORTH? then why not enter a competition?’ »