Yo! This project is still a Work In Progress. Instructions, board layouts and BOM might change!
Safe relay node
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Created:
7 years ago
Updated:
6 years ago
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The project is at a **final stage of development. At the moment, a prototype and a working program based on my research on the stable operation of devices without a controller and gateway is ready.** - Happy Standby Node :) | MyS Network Scanner (4 sec.)

In micro network mode devices do not need any gateway or controller. Efficiency remains 100% +mad speed of working off of commands))). As soon as the gateway or the controller again deign to appear in the home network, such devices will immediately know about it and again begin to send some information to the controller(continue interaction).

VIDEO: Test operation of the program in the micro network mode

You can express your opinion on the forum, support my project.

Characteristics of the device:

  • Plastic enclosure 1DIN(DIN rail)

  • ATmega328

  • NRF24L01

  • DS18S20 (temperature monitoring, shutdown on the upper adjustable border)

  • ACS712 (load monitoring, shutdown when the setpoint is exceeded

  • Voltmeter

  • Built-in power supply OR AP9930GM1 (transistor bridge, it is possible to connect 5V power regardless of polarity .Unlike diode bridges, there is no loss in output)

  • AT25F512C (for dual optibot)

  • ATSHA204A (Crypto Authentication)

  • Bizzer

  • Relay (el/m)

  • 5A OR 16A

  • MOC3063-M (zero cross)

  • BTA206 (protection of the main relay)

Lineup:

  • 1DIN:

  • 1 channel 5A

  • 1 channel 16A

  • 2DIN:

  • 2 channels 5A

  • 2 channels 16A

  • 4DIN:

  • 4 channels 5A

  • 4 channels 16A

    FTDI and ICSP header for programming

    Automatic network search

When the load is switched on, the ssr relay starts, after 100 ms the electromagnetic relay is switched on and ssr is turned off. Such a scheme to ensure the operability of the relay electromagnetic relay, which greatly increases the service life.

The operating modes of the relay are implemented, thanks to the joint operation with the ACS712 current sensor. For example at a load of 100w only the ssd relay will turn on, the electromagnetic will not turn on ....

See the oscilloscope below in the photo.

standard relay

ON

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OFF

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Safe relay

ON

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OFF

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