--- id: modules title: 1.2 Plugin Configuration sidebar_label: 1.2 Plugin Config --- Modules are included in the firmware and allow users to extend the functionality of their mesh or device. The list of current modules is as follows: | Name | Description | |:----:|:-----------:| | Canned Message Plugin | Set a number of predefined messages to send out directly from the device with the use of an input device like a rotary encoder. | | External Notification Plugin | Incoming messages are able to alert you using circuits you attach to the device (LEDs, Buzzers, etc) | | Rotary Encoder Plugin | Attach and define input devices such as external keyboards and rotary encoders. | | Range Test Plugin | Send messages with GPS location at an interval to test the distance your devices can communicate. Requires (at least) one device set up as a sender and one as a receiver. The receiver(s) will log all incoming messages to a CSV. | | Serial Plugin | Send messages across the mesh by sending strings over a serial port. | | Store and Forward Plugin | Set a designated node to store messages and resend them to nodes with intermittent connection to a mesh. | | Telemetry Plugin | Attach sensors to the device and transmit readings on a regular interval to the mesh. | :::tip Once Plugin settings are changed, a **reset** is required for them to take effect. :::