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Following on from our previous post on connecting the Bat Listener kit to and Arduino, here we show you how to add a small LCD screen to display frequency data and a 'sonograph'. Hopefully you have the Bat listener connected to the Arduino and are reading data onto the serial port. The next step is to add a small display so we can have a portable display of the most interesting data. What is a 'sonograph'? A sonograph (sometimes called a 'sonogram') is a graph of frequency against time. Displaying the frequency measured by the Bat Listener against time allows...

If you would like to take your bat detecting further, the new version of our Bat Listener has output pads for connecting the output to an Arduino. This means we can measure the exact frequency and start to do more interesting things like recording the frequencies, displaying a 'sonograph' of the detected signal and record the number of bat detections. An Arduino is a small micro-controller which can be easily re-programmed to perform different functions. It can also be used as a link to receive data onto a computer. It is an open-source design with an open-source integrated development environment...

I recently ran a workshop building the EMF Detector kit at my local hackspace in Nottingham. This kit responds to electric and magnetic fields to produce weird sound-scapes of a hidden world of electro-magnetic noise.   We tested it on phones, power supplies and electrical fittings. Always good to run through kits and instructions as people build them - a few improvements highlighted, as always!

Recently, I headed down to Cambridge MakeSpace for a meet up of the the Cambridge Synthetic Biology group. The meet up was entitled "Science Makers: Open hardware for STEM education". They had previously ordered the bat listener kit and invited me along to chat about the kits I'm working on and also to hear and see what members of their group are working on It was great to visit the group and also have a look around Cambridge MakeSpace - always good to see other spaces. Interesting cargo bike project. After three talks (mine, a talk on plant electrophysiology in...

The Curious Electric Company had a stall at our most local Mini Maker Faire in Derby. It was a great, if very busy, day. So busy in fact that I only had the time to take one photograph and did not manage to visit any of the other stalls during the day. I ad the new design for the Bat Listener and the EMF detector for sale and they seemed popular. Over 2000 people attended the event, which is amazing. It was their 5th year aniversary and its good to know that I have been every year, either with Nottingham...