First battery-powered test, GPS delay acquisition
The first battery-powered test was successful, in the sense that the board was working. However, I was surprised to see that the GPS was unable […]
gps
First successful satellite transmission
The first satellite transmission was successful (and lesson full). The message “toto” was sent from the modem to the web site using the satellite gateway. […]
First smooth working of both UARTs simultaneously and external power circuit
I got the modem + GPS + USB logging working smoothly. I’m stepping away from ChibiOs for now, because I can get something working well […]
satellite modem – MCU communication problem solved
I started by replacing the modem with a trusty GPS, so I have a continuous flow of data with a checksum (GPS lines are checksumed) […]
GPS working
However, I’m switching to Adafruit integrated GPS + SD card reader for mechanical simplicity. I wrote the GPS reading / decoding software myself, very simple […]