tHAT2 + GSM overlay

For Lan Controller HW 3.7, 3.8

Version of the tHAT2 overlay extended with a GSM module, currently available in the IDC10 version with IDC10 connectors for connecting the relay boards.

The tHAT2 module offers additional 4 outputs in the open collector standard, driven by PWM outputs, for controlling relays. The board also has an RS485 converter for Modbus bus support. There are also outputs OUT1-OUT4 and supply voltage, analog inputs INPA5 and INPA6, and 3.3 V voltage for powering sensors.

Basic features

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  • 8 open collector outputs to control the relays, IDC10 connector, compatible with the relay board, OUT1-4, PWM0-3 outputs
  • RS485 module for communication in the Modbus standard, A+ and B- outputs
  • GSM SIM800C module with GPRS support
  • SIM card connector in the nano SIM standard
  • antenna socket on the board and attachable GSM antenna
  • battery of supercapacitors to maintain the operation of the module and controller, to send notifications about power failure

The GSM overlay enables LC

  • Controlling outputs via SMS (on/off/reset).
  • Sending SMS as an action in Events.
  • Sending HTTP requests (e.g. cyclical sending of readings) over the mobile network.
  • Sending MQTT data (e.g. sensor readings, controlling outputs) over the mobile network.
The GSM module uses a serial port, therefore the port is no longer available for connecting other devices or sensors.

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