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The APRS Telemetry Interface
The Command Language
Release 1.0
The software of the interface has some commands for configuring the system.
- H,
Help
Print a command overview
- S,
Status
Print the state of the system: - Uptime
- Number of system restarts
- Watchdog mode
- Time for PC-Watchdog
- Number of PC-Watchdog resets
- Time for TX-Watchdog
- Number of TX-Watchdog resets
- Assignments in the channelmatrix
- Times for average frequency counters
- Gate times for the low frequency counters
- Gate times for the extremely low frequency counters
- State of I2C-Bus
- I2C-Bus addresses
- Operating mode of the frequency counters
- List of channels for serial output
- RO,
Read Output channels
Prints the values of all output channels to DIGI_NED
in decimal numbers every second. Press "q" to stop printing.
- RV,
Read Voltage channels
Prints the values of all voltage channels in decimal
numbers every second. Press "q" to stop printing.
- RD,
Read Digital channels
Prints the binary values of the digital channels of
group 1 or 2 every second. Press "q" to stop printing.
RD group
group: 1,2
- RF,
Read Frequency counter channels
Prints the values of all frequency counter
channels in decimal numbers every second. Press "q" to stop
printing.
- MF,
Modify Frequency counter mode
Usage:
MF mode
mode: 0,1
- RA,
Read Average of frequency counter channels
Prints the values of all
frequency counters and all averages of frequency counter channels in decimal
numbers every second. Press "q" to stop printing.
- MA,
Modify time for Average of frequency counters
Usage:
MA Ch Time
Ch: 1-8, Time 1-255s
- RE,
Read Event counters
Prints the values of the three event counters,
divided into bytes.
Event counter 1 : E1 = Lower Byte, E2 = Higher Byte
Event counter 2 : E3 = Lower Byte, E4 = Higher Byte
Event counter 3
: E5 = Lowest Byte, E6 = Second Byte, E7 = Third Byte, E8 = Highest Byte
- RL,
Read Low frequency counters
Prints the values of the three low frequency
counters, divided into bytes.
Counter 1 : L1 = Lower Byte, L2 = Higher
Byte
Counter 2 : L3 = Lower Byte, L4 = Higher Byte
Counter 3 : L5 =
Lowest Byte, L6 = Second Byte, L7 = Third Byte, L8 = Highest Byte
- ML,
Modify time for Low frequency counters
Usage:
ML Ch Time
Ch: 1-3, Time 1-255 seconds
- RX,
Read eXtremely low frequency counters
Prints the values of the three
extremely low frequency counters, divided into bytes.
Counter 1 : X1 =
Lower Byte, X2 = Higher Byte
Counter 2 : X3 = Lower Byte, X4 = Higher
Byte
Counter 3 : X5 = Lowest Byte, X6 = Second Byte, X7 = Third Byte, X8
= Highest Byte
- MX,
Modify time for eXtremely low frequency counters
Usage:
MX Ch Time
Ch: 1-3, Time 1-255 minutes
- RI,
Read I2C channels
Prints the values of all I2C-bus channels in decimal
numbers every second. Press "q" to stop printing.
- MI,
Modify I2C channels
activate or deactivate the I2C-bus channels
Command:
MI ON or MI OFF
Or setup I2C-bus adresses.
Command:
MI ch adr
ch: 1-8, adr: I2C-bus address of your device
- RS,
Read Serial
Data output via serial port every second. Press "q"
to stop printing.
Usage:
RS or RSc
c: new character as separator between the output channels
- MS,
Modify Serial
Add or remove a channel from the list for serial output
Usage:
MS +Xn or MS -Xn
X: Input channel V,F,A,E,L,X,I,D (Voltmeter, Frequency, Average frequency,
Event counter, Low frequency counter, eXtremely low frequency counter,
I2C-Bus, Digital), n: Number of the input channel (1-8)
- MM,
Modify channel Matrix
Modify the assignment of input channels and the
DIGI_NED-Channels
Usage:
MM DNx = Yz
x: DIGI_NED-Channel number (0-7), Y: Input channel V,F,A,E,L,X,I,D (Voltmeter,
Frequency, Average frequency, Event counter, Low frequency counter, eXtremely
low frequency counter, I2C-Bus, Digital), z: Number of the input channel (1-8)
- MWM,
Modify Watchdog Mode
Switches watchdog mode to 0, 1 or 2. Mode 0 =
watchdog off.
MWM mode
mode: 0,1,2
- MWP,
Modify Watchdog PC time
Set up time for PC-watchdog
MWP time
time: 1-255 minutes
- MWT,
Modify Wotchdog TX time
Set up time for TX-watchdog
MWT time
time: 1-255 seconds
All other inputs will be rejected. A help text will be typed out.
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