Okay, what’s this about? Oona Räisänen challenged her readers to construct a whistle that could transmit data using FSK. And if one reads her challenge carefully it says “whistle”. Not “pea whistle“. Now THAT simplifies things a lot! A whistle design like this can be modified by inserting a magnet and wrapping a coil around…
Read More Continued “data transmission whistle” experiment, more successful this timeWell, not really failed, since every result is a result. I just found a way how this does not work. Two in fact. Okay, what’s this about? Oona Räisänen challenged her readers to construct a whistle that could transmit data using FSK. So, I thought about replacing the pea in a pea whistle with a…
Read More (Failed) Pea whistle experimentToen ik dit las vroeg ik me af of met zo’n 1-bit ADC verstaanbare spraak te verzenden zou zijn met zo’n goedkope 433Mhz module. En dan liefst met een heel simpele quick and dirty 1-bit ADC gemaakt uit standaard onderdelen. En dat blijkt te kunnen! M’n adc is geen echte adc, er is geen kloksignaal…
Read More 433Mhz spraak transmissie experiment met 1-bit ADC