After a lot of work from thinkl33t [http://thinkl33t.co.uk/] (@thinkl33t [http://twitter.com/thinkl33t]), badspyro [https://twitter.com/badspyro] and myself Bugzilla is complete. Like her smaller brethren she is battery powered, although in her case the battery is somewhat bigger. Building Bugzilla Bugzilla is a scaled up

When you have a workshop everything looks like an opportunity to make something:

These were developed to mimic as closely as possible bio-sonar using an Arduino, HC-SR04 Ultrasonic distance sensor and a piezo buzzer as part of a workshop to introduce school children to the basics of electronics and coding. Electronics The circuit is very simple for this particular project. It proved cheaper