Merge Plugin milesight_iot_ct305 into Main

milesight-iot-ct305/CHANGELOG.md

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+# Changelog 
+
+## 1.0.0 - 2026-04-16
+
+- First version of plugin

milesight-iot-ct305/LICENSE.md

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+Copyright 2026 Thinger.io
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

milesight-iot-ct305/README.md

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+# Smart Current Transformer - CT305
+
+The CT30x is a LoRaWAN® Smart Current Transformer for monitoring energy consumption and analyzing usage remotely. CT305 provides multiple current options to suit energy monitoring and supports sending threshold alarms. With a 500A current capacity, the CT305 features self-powered operation, eliminating the need for batteries or external wiring, and uses a non-invasive clamp-on design for easy and safe installation.
+
+## Key Features
+
+- **Self-Powered Operation**: Energy harvesting from measured cables, maintenance-free with no batteries or external wires required
+- **High Accuracy Monitoring**: RMS current and accumulated current reporting with sampling frequency up to 3.3 kHz
+- **500A Current Capacity**: Rated primary current of 500 Arms per CT with 150 mArms rated secondary current
+- **Real-Time Monitoring**: Sampling rate up to 1s for fast response and alarm capabilities
+- **Non-Invasive Design**: Clamp-on installation without power de-energizing
+- **Temperature Monitoring**: Support for external NTC sensor for cable temperature measurement (-20°C to 100°C)
+- **Three-Phase Detection**: Simultaneous monitoring of three phases
+- **Threshold Alarms**: Configurable threshold and overrange alarm notifications
+- **LED Indicator**: Visual indication of working status and alarms
+- **FUOTA Support**: Firmware Update Over the Air capability
+
+## Technical Specifications
+
+- **Protocol**: LoRaWAN® (Class A)
+- **Frequency**: CN470/IN865/RU864/EU868/US915/AU915/KR920/AS923-1&2&3&4
+- **Tx Power**: 16 dBm (868 MHz) / 20 dBm (915 MHz) / 19 dBm (470 MHz)
+- **Sensitivity**: -137 dBm
+- **Activation**: OTAA/ABP
+- **Measurement Accuracy**: ±1%
+- **Resolution**: 1 mA
+- **Working Frequency**: 50~60 Hz
+- **Antenna**: 50Ω SMA Connector
+- **Configuration**: USB Type-C or Downlink
+
+## Thinger.io Integration
+
+The CT305 seamlessly integrates with Thinger.io through LoRaWAN network servers, enabling remote energy monitoring, real-time current tracking, and alarm management through cloud-based dashboards.
+
+## Requirements
+
+A LoRaWAN server is required to communicate the CT305 into Thinger.io, some options are:
+
+- [The Things Stack](https://www.thethingsindustries.com/stack/)
+- [LORIOT](https://loriot.io/)
+- [ChirpStack](https://www.chirpstack.io/)
+
+Alongside, the corresponding plugin for the selected LoRaWAN server needs to be installed in your Thinger.io instance.
+
+## Get Started
+
+### Installation
+
+Look for the plugin in the [Thinger.io Plugin Store](https://marketplace.thinger.io/) and install it in your Thinger.io instance. Once the plugin is installed a new Product will be created for this device.
+
+### Configuration
+
+The Product is already preconfigured, check that the auto provision prefix matches the one selected in your LoRaWAN server plugin in Thinger.io, or change it to your desire.
+
+### Usage
+
+Start sending uplinks for autoprovisioning devices and buckets.
+This product also provides a predefined dashboard and downlinks.
+
+## Additional Resources
+
+Milesight CT305 resources can be found at:
+
+- [Datasheet](https://resource.milesight.com/milesight/iot/document/ct3xx-datasheet-en.pdf)
+- [User Guide](https://resource.milesight.com/milesight/iot/document/ct3xx-user-guide-en.pdf)
+- [Thinger docs](https://docs.thinger.io)