TFE iQGSM R1 GSM module, up to 10 users

iQGSM R1 is a Czech GSM module that lets you open a gate with a missed call from your phone. The module recognises a stored number, switches the relay and the gate opens. The call is not connected, so control is free of charge. It works with any phone; no smartphone or app is needed.

This version has memory for 10 phone numbers and is suitable for a family house or small business. For more users there is a version for 100 and one for 1,000 users. If you want a notification when the gate stays open, choose the iQGSM R2 with an alarm function for 20 numbers.

Connection

1. Connect 4 wires: two for the power supply from the operator, two for the opening input.
2. Insert a SIM card from any network operator.
3. Store phone numbers using the button on the module or remotely by SMS commands, up to 10 numbers at once.

You do not need a computer or software. The module is powered directly by the operator (10–30 V AC/DC); no other power supply or socket is needed.

Control modes

• stored numbers only – highest security, the module ignores unknown numbers,
• SMS with password – no limit on the number of users,
• missed call from any number – low security, for example for a public car park.

The relay switching time can be set from 1 second to 24 hours, or to permanent on and off. This means the module can also control other devices, such as lighting.

Weak signal

If you place the module in a metal enclosure or in a location with a weak signal, add an external GSM antenna.