As a member of JASRA (Jalur Selatan Radio Amatur) , i was asked to continue an old project to connect our local repeater through ROIP.
For this project, the raspberry pi 3 was selected for its small form factor and low power consumption. Since the pi doesn’t have mic input, a USB sound card is used. SVXLINK as the repeater software. A Baofeng UV5R since i got a lot laying around at the shack.
The challenge is on how to trigger the PTT of the radio. There are several ways that i come across such as through RS232, GPIO Pin or VOX.
This is my attempt on building a tracker for high vehicle or maybe even HAB (High Altitude Balloon) based on projects based on the internet. The tracker will use APRS network to report the position on the internet. For the microcontroller, i’ll be using Atmel ATMEGA328P with Arduino Bootloader. Various sensors (Temperature, Humidity, Pressure, etc will be integrated in the project.
For transmitter, i will be using Radiometrix HX1 transmitter. The GPS and Sensors are working perfectly. Now , i’m still researching on how to send those message as APRS Packet using HX1.
