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GSM and WiFi Dial-to-Open Gate and Garage Door Opener


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The GSM and WiFi* Gate and Garage door openers allow you to remotely operate you gate using your phone or PC. A free call (the call is never answered) to the SIM card number from a registered telephone number will open your gates or garage doors.  There are no keyfobs or PIN numbers required giving ultimate flexibility as to who has access to your property.  The system has space for storing up to 1000 numbers. If WiFi is available at the gate, the WiFi variant also allows the gate to be controlled via a website link which can be stored on your smart phone home page. This works independently of the SIM giving you access should there be a problem with your SIM card or network. SIM card problems can also be investigated via WiFi on this version. (*WiFi is available as an option)

Programming is performed remotely either using a web-browser or by SMS text using real word commands like 'add' and 'remove'. There are no annoying passwords to remember as you are identified to the system by your mobile number. This can be done on any device; PC, Mac, iPhone, Android phone etc... If it has a web browser like Chrome it can be used.
Using the web-interface the history of calls received and other events can by viewed.  This includes the time of the call and whether it was valid.


The system incorporates a 7-day timer which allows the gate to be opened at a set time each day.  For each day there are up to 2 time periods where the gate is open i.e. Monday 8:00-9:00 and Monday 17:00-18:00.  The timer can be programmed remotely using a PC or by using SMS text messages.

The WiFi version allows further control for each registered user. There can be restrictions on which days and the time of day access is allowed. Additionally, the user's access can be set to expire after a certain date.
The website is available to both the WiFi and GSM versions, however, the GSM only version will require a SIM with data allowance in order to use these features.
Why WiFi?
  • Allows entry even if SIM or network is unavailable
  • Eliminates cost of SIM card data
  • More reliable data connection than GPRS
  • Monitor SIM and network status without relying on GSM connection
By default the # relay is operated by calling the unit and the * relay is operated by SMS (using 'on' and 'off'). Texting 'open' pulses the # relay and texting 'close' pulses the * relay. These PCB's can be used for gates and shutters with both and open and close connections as well as controllers with just a single open/close input.
A complete list of accepted telephone numbers can be viewed via SMS text message. Sending ‘CSQ’ in a SMS text to the SIM card number will return the signal strength which should be greater than 8 for a reliable connection. The No Signal LED will flash once per second if the signal is less than 11.
A ‘master’ (admin) phone number must be set to control the dialler.  There can be several master numbers.  Whilst the jumper is connected, the ‘master’ command will be accepted and you will be able to set up a new master number.
The SIM Fault LED lights if the device cannot use the SIM; check the orientation of the SIM and remove all PIN numbers or set them to 0000
The No Signal LED lights when no GSM signal can be found; check the aerial is fitted correctly. The LED will flash when the signal strength is less than 11. Keep the aerial away from wires and metallic surfaces.
The Network Fault LED lights when there is a problem with the network service. This is normally due to the SIM not having sufficient credit.
From your mobile phone send an SMS text to the device’s SIM card’s telephone number
Master me     …sets your number as an admin number
The dialler will reply with a link to your unit's webpage which can then be used to set up further telephone numbers and email addresses.
The master phone can also be used to add more telephone number with call access using the ADD command
Add 07123456789.
To remove a Master, User, Call Number or Text Number from the memory use the REMOVE command as follows:
Remove 07000777888.
remove me
To see all of the numbers in the memory the LIST command is sent as follows:
LIST      …sends list of numbers in the memory
To check the status of the inputs and output please send from a master phone (this message can be customised):
The board is supplied with a suitable antenna.
SMA Conector for use with GSM Alarm Dialer
GSM products do not work on the 'Three' network as they are UMTS only.
For indoor appplications the PCB fits into the Hammond 1591B enclosure.

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