• August 5, 2019

    K1FM Pico Balloon – Part Two

    Great progress with the Pico Balloon project! The latest release (version 1.3) is 4 layers and weights around 3 grams when printed on a 1.6mm PCB (can further be reduced in the future). It also have some interesting new features: allows self-calibration, can measure its own power supply and has an onboard temperature sensor. Here… Continue

  • May 14, 2019

    K1FM Pico Balloon – Part One

    The Pico Balloon concept is simple: you build a transmitter small enough to be carried around by one or two common party balloons. As the transmitter floats around the globe it transmits its current position and altitude so you can follow its path in realtime. If you do it right, the balloon will circumnavigate the… Continue