Monitor the cell signal levels
This monitor queries the modem for cell signal level information and posts it to VintageNet properties.
The following properties are reported:
| Property | Values | Description |
|---|---|---|
signal_asu | 0-31,99 | This is the raw Arbitrary Strength Unit (ASU) reported. It's interpretation depends on the modem and possibly the connection technology. |
signal_4bars | 0-4 | The signal level in "bars" for presentation to a user. |
signal_dbm | -144 - -44 | The signal level in dBm. Interpretation depends on the connection technology. |
Summary
Functions
Returns a specification to start this module under a supervisor.
Types
@type opt() :: {:signal_check_interval, non_neg_integer()} | {:ifname, String.t()} | {:tty, String.t()}
The options for the monitor are:
:signal_check_interval- the number of milliseconds to wait before asking the modem for the signal quality (default 5 seconds):ifname- the interface name the mobile connection is using:tty- the tty name that is used to send AT commands
Functions
Returns a specification to start this module under a supervisor.
See Supervisor.
@spec start_link([opt()]) :: GenServer.on_start()