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GPS-fancy-display

M5StickC GPS unit displays

Requires the TinyGPS++ Lib and the GPS unit

Controls

  • Holding BtnA cycles through the screens; Positional/Speed/Heading/Time/Battery status/Distance-to
  • Tapping BtnB cycles through secondary displays, eg speed units. It also forces a GUI redraw so on screens without secondary displays can be used as a 'force-screen-update'.

'Distance-to' screen

The Distance-to screen shows the distance to a given lat/lon. It is possible to set any co-ordinate with 1dp precision. The controls cycle through:

  • Add 0.1
  • Add 10
  • Invert sign (- >> +, + >> -)

First for Lat, then for Lon. The text highlighting should make it clear what is being changed. So, to set Lat to -31.2 one would do the following:

  • Change to the distance-to screen by holding BtnA
  • Tap BtnA twelve times to add 1.2 total
  • Tap BtnB to switch to 'Add 10' mode and tap BtnA three times to add a total of 30
  • Tap BtnB to switch to 'Invert Sign' mode and tap BtnA once to switch from 31.2 to -31.2

Distance-to screen

Serial

NMEA sentences are output verbatim to serial at 9600 baud.

A PowerShell script, SerialPortReader.ps1, is included that can stream from the COM port to a file (which should be openable in, for example, Google Earth Pro).

Example usage:

C:\Projects\GPS-fancy-display> .\SerialPortReader.ps1

cmdlet SerialPortReader.ps1 at command pipeline position 1
Supply values for the following parameters:
PortName: COM3
BaudRate: 9600
Checking PortName...
--> PortName COM3 is available
Establishing connection to the port...
[...]