Arduino compatible power line modem shield for your DIY Smart Home networkDesigned by JARViE in United States of America
Product Description The JARViE PLM Shield is an Arduino compatible, simple and low-cost solution for creating a DIY IOT project or developing consumer product using power line telecommunications. ...Read More…
The JARViE PLM Shield is an Arduino compatible, simple and low-cost solution for creating a DIY IOT project or developing consumer product using power line telecommunications. Stack this shield on top of one of the many MCU development boards with the recognizable Arduino Shield footprint and you instantly have a smart node that can control appliances, lighting, garage doors and sensors over thousands of feet of home 120/240 AC or DC power lines with no other wires required (nodes receive power from the same wires they communicate over). Nodes can be accessed over the internet via web browsers and or C++/Python/MATLAB/LabVIEW applications.
This power line modem solution is compliant with US FCC (Federal Communication Commission), Industry Canada, Japan MPT, and European CENELEC EN50065-1 regulations for signaling in the 125 kHz to 140 kHz and the 95 kHz to 125 kHz frequency bands.
A DIY smart home system is one of the many things you can create with the PLM Shield. The figure below illustrates a smart home application. The Switch Node provides on/off control of appliances, lighting and or opening/closing of garage doors. The Environment Node can monitor the indoor air quality of areas within your home. The Internet Node can host a webpage that displays the environmental data, as well as, clickable buttons to control appliances, lighting or garage doors. The webpage can be accessed from any mobile phone, PC or tablet connected to the internet; allowing you to access your DIY smart home network from inside your house or while your away.
Node examples include but not limited to,
Internet Node: Ardunio UNO + PLM Shield + Ethernet Shield creates a node that can be controlled from outside of your home over the internet. Host server applications to report data to a website for remote monitoring.
Switch Node: Ardunio UNO + PLM Shield + Relay Shield creates a node that can switch on/off AC appliances (e.g. fan, light, motor or high current DC actuators like solenoid valves)
The above diagram illustrates how the PLM Shield should be connected to a DC power line. In this diagram, the DC power source can be a switch-mode power supply, solar panels with converted DC output, batteries, super capacitor, etc. The DC power source should not exceed +35 VDC. When using a switch-mode power supply, it is best to filter the output to achieve the best powerline telecommunications. L1 = 100 uH and C = 470 uF forms a low-pass filter that prevents power supply noise from interfering with powerline communications. The filtering components are likely not required when using batteries or capacitors as the power source. The impedance of C decreases as freq. increases so a choke (L2 = 100 uH) is recommended to prevent the capacitor from overloading/shorting the 1200 Hz powerline communications. Using batteries and capacitors as the DC power source will have the same overloading affect, so a choke is recommended for these sources as well.
Product documentation, open-source C++ libraries and code examples for quickly getting started are available on GitHub . This is an open-source platform. I encourage great software developers to branch what's in the repo, improve it, refine it and share it!
The PLM Shield + an Arduino enables devices to communicate over meters of 240/120 VAC or +35V max DC power lines removing the need to have devices closely tethered together with more than two wires. Currently, it's the only PLM Shield on the market and it provides power to attached devices from the power line input. Devices being able to communicate over thousands of meters of AC or DC power lines enables one to develop a mesh network of two or more distributed devices, each having unique functions. Devices that potentially allow one to close your garage, turn-off a downstairs TV or monitor the power consumption of home appliances while lying in bed.
The high voltages that are present when operating this product, constitute a risk of electric shock, personal injury, death and/or ignition of fire. This product is intended for evaluation purposes only. It shall be operated in a designated test area by personnel that is qualified according to local requirements and labor laws to work with non-insulated mains voltages and high-voltage circuits. This product shall never be operated unattended.
The board needs to be connected to mains voltage. Touching the reference board during operation must be avoided at all times. An isolated housing is obligatory when used in uncontrolled, non-laboratory environments. This isolation is not according to any regulated norm.
JARViE is NOT liable for any mishaps that occur while using this board. User must consider and take proper safety precautions while working with high-voltages.
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Pflugerville, TX, United States of America
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