There are 3 repositories under taskerplugin topic.
A plugin for Tasker to communicate with a Bluetooth device using the Serial Port Profile (SPP).
Tutorials and examples for Tasker Plugins made by Nick Nack Development
Plugin for Tasker that allows the user to write arbitrary binary arrays to Bluetooth Low Energy Devices
An Android application built using the Google Code Scanner API to scan QR codes and barcodes. It can function as both an event and action plugin for Tasker.
An IR signal transmission plugin for Tasker
A plugin aiming to help Tasker to deal with network related stuffs.
Android Bluetooth Low Energy tasker plugin