Tunnel – Opening of a mechanical door by a missed call from an authorized phone number

Scenario details:

• We have the mechanical door of a garage that now opens using a push button
• We also want to be able to open the door by making a missed call. To do so, when making a missed call, the relay must be switched on for a couple of seconds. That relay will be connected, in parallel, to the current push button of the door
• Only the authorized phone numbers will be able to open the door
• The phone numbers authorized to make the missed call must be subject to modification

Solution: MTX-Tunnel firmware + MTX-Java-IoT

EXAMPLE of settings (file config.txt) for such scenario:

Configuration	Observations
MTX_pin: 0000 MTX_model: 199802407 MTX_mode: none MTX_urc: off SMS_allPhones: off SMS_ATEnabled: on SMS_ATResponse: on SMS_validPhone1: +34666123456 SMS_validPhone2: +34666123457 SMS_validPhone3: +34666123458 OUTPUT_mode1: call	SIM Card PIN MTX model We do not want GPRS We do not need the URC information messages Not all phones will be used In case we want to modify the authorized numbers In case we want to modify the authorized numbers Authorized number 1 Authorized number 2 Authorized number 3 Associated relay will control the door

Details:

• To be able to modify the SMS authorized phone numbers, it is necessary to send an SMS from an authorised phone number with a text, for example: mtxtunnel at^mtxtunnel=setparam,SMS_validPhone1,+34666333444
• It is possible to personalise the previous red header (mtxtunnel) with the text you want; to do so check the configuration parameter SMS header