The user manual for these things was quite amazing and instructional. https://cdn.makezine.com/uploads/2011/04/gakken_ex-150_english.pdf https://cdn.makezine.c

The user manual for these things was quite amazing and instructional. https://cdn.makezine.com/uploads/2011/04/gakken_ex-150_english.pdf https://cdn.makezine.com/uploads/2011/04/gakken_ex-150_engli...