Rockblock satellite modem to Teensy MCU UART communication problem (multiple power sources)
I’m using an mk1 rockblock modem, which is using a sub 0,1″ connector, thus I got a special cable with the kind help of Rock7mobile. […]
Make
More on the pressure sensor, battery level display, satellite modem status LED, decoupling capacitors
Problems with the computation of pressure / altitude are solved (debugged with a mix of comparing the results with the Arduino output and using Bosch […]
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 […]