A Maker named Ugifer recently sent a box of electronics attached to a balloon approximately 124,000 into the air.
As Alan Parekh of Hacked Gadgets reports, the balloon was tracked using the Space Near Us system, with Ugifer creating a custom PCB to keep the circuit as robust and compact as possible.
The finished PCB includes an NTX2 radio module, microSD card, DS18B20 temperature gauge, Ublox GPS, a Honeywell pressure sensor and Atmel’s stalwart ATmega328 microcontroller (MCU).
“[Atmel’s] ATMega328 MCU is a great option because it can be programmed from the very easy Arduino IDE,” Ugifer explained.
“It will also run on 3v3 but only a 8MHz. However that’s plenty of processing power for reading a GPS and running a low baud-rate radio.”