Category Archives: Hardware

The new version (technically the next iteration, as it is far from ‘finished’) of the talking ruler is almost ready. New parts have been printed, the stripboard has been soldered together and connectors added to the various parts. As there … Continue reading →

After creating the initial prototype of the talking ruler and considering some of the early feedback given to me by people who have seen the device work, the new version is now on its way. This is now a self-contained … Continue reading →

Finally, I managed to find some spare time today to connect up the audio system to a Raspberry Pi 4, which includes a simple speaker output and MAX9814 condenser mic input module. The purpose of this setup is to allow … Continue reading →

Another device has been tested for the project, LCTech’s ISD1820-powered ‘voice module’. This is a fairly small board centred around a single-chip recording and playback solution. From a little googling, it was found that the chips can be purchased for … Continue reading →

We are looking for devices which could be easily modified into our prototype soundbox at the moment. The device has to be capable of both recording and playing back a small selection of sounds. It has to be portable, and … Continue reading →