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Getting and Setting Modem Parameters

Use the Popoto Python API to read and change modem parameters such as payload mode and transmit power.

Connect to the Modem​

Import the popoto class and create a modem object using the modem IP address and command port:

from popoto import popoto

modem = popoto("10.0.0.242", 17000)

Replace 10.0.0.242 with the IP address of your modem.

Set a Parameter​

Use set() with the parameter name and new value:

modem.set("PayloadMode", 1)
modem.set("TxPowerWatts", 4.0)

You can also use a typed setter. Use setValueI() for an integer or setValueF() for a floating-point number:

modem.setValueI("PayloadMode", 1)
modem.setValueF("TxPowerWatts", 4.0)

Get a Parameter​

First, request the parameter:

modem.get("PayloadMode")

The modem returns the value asynchronously. Wait for a response containing the requested parameter:

reply = modem.waitForSpecificReply("PayloadMode", None, 3)

if "Timeout" in reply:
    print("The modem did not respond.")
else:
    print(reply["PayloadMode"])
note

get() and the typed getter methods send a request but do not return the parameter value directly. Read the value from the modem response returned by waitForSpecificReply().

Complete Example​

from popoto import popoto

modem = popoto("10.0.0.242", 17000)

modem.set("PayloadMode", 1)

modem.get("PayloadMode")
reply = modem.waitForSpecificReply("PayloadMode", None, 3)

if "Timeout" in reply:
    print("The modem did not respond.")
else:
    print(f"PayloadMode: {reply['PayloadMode']}")

modem.tearDownPopoto()
modem.close()