The main teacher artefact issued from the teacher.solar project was my Magic Wand 0 (MW0). In its essence, MW0 is a headless - e.g. no screen and no keyboard - RaspberryPi computer attached and a solar Powerbank which serves as a main server to which students connect during diverse outdoor education sessions.

RaspberryPi has additional components - notably the GSM module and 4-microphone circular LED Respeaker HAT - attached to it. Software-wise, it runs a Raspbian Linux with additional systemd services (teacher.js, matrix-synapse, Janus, Kastalia KMS, nginx, bluesalsa u.s.w.) in order to provide completely autark ``outdoor digital education'' experience.

The whole system is attached to an awkward piece of wood of unknown origin making the whole setup both piece of art and teacher instrument in the same time. Additional Arduino microcontroller with 12 different sensor types is also attached to the Wand.

 

MW0 is more closely described in \cite{hromadathree}.