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WORK IN PROGRESS - Please do not rely on this as your only tracking system. Tiny4FSK is still in the R&D phase of development and testing.
NEW - KiCAD Schematic and PCB files uploaded (2/13/24). I2C scanning capabilities added.
STATE - Breadboard and prototyping has been completed. Schematic has been created and a first draft of the PCB has been created PCBs soon to be ordered.
Tiny4FSK aims to be an ultra-tiny high-altitude tracking system. It runs on 1 AAA battery that can last for ~12 hours. It runs on 4FSK (4-frequency shift keying), which means that is separated tones into 4 separate frequencies. (Figure 1.1). Upon this, it uses the Horus Binary v2 system, which is a relatively modern system popularly used with RS41ng.
High-Altitude Ballooning (HAB) offers a formally structured yet thrilling hobby, launching payloads to near-space (30km) for atmospheric research, breathtaking imagery, and scientific experimentation. While demanding meticulous planning, safety adherence, and technical skill in electronics and mechanics, HAB rewards hobbyists with hands-on engineering challenges and atmospheric understanding.