• GSM Remote Control – 2 IN and 2 OUT
    Part 2 – Schematic

    In order to understand the different functions, let’s now take a look at the schematic diagram of the unit. 2 IN and 2 OUT Schematic Diagram The entire control is handled by a Microchip PIC18F46K20-I/PT microcontroller, programmed with a...

    • Posted 8 years ago
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  • GSM Remote Control – 2 IN and 2 OUT DTMF
    Part 3 – Assembly

    On the construction perspective, the remote control does not present many difficulties, just the obvious ones that appear when working with circuits requiring superficial assembly components. As usual, there is a PCB with double plating where...

    • Posted 8 years ago
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  • GSM Remote Control – 2 IN and 2 OUT
    Part 3 – Assembly

    Now that we have seen the electric scheme, we can work on the practical aspect of the project; let us state in advance that its making presupposes a double-faced printed board with metallic holes, using many SMD...

    • Posted 8 years ago
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  • GSM Remote Control – 2 IN and 2 OUT DTMF
    Part 4 – SMS Command

    The set of commands of this remote is divided into two categories: the SMS ones and the DTMF tones. The former are simply summarized in the corresponding table, since they are the same as the ones described...

    • Posted 8 years ago
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  • GSM Remote Control – Temperature Control
    Part 4 – SMS Command

    Commands can be given in two different ways: the first one is to send the SMS according to required syntax and with the password (if required), needful to avoid strangers to operate the configuration; the second one...

    • Posted 8 years ago
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  • GSM Remote Control – 2 IN and 2 OUT
    Part 4 – SMS Command

    Now you have to get to know the commands needed to manage it and use them at their best.  Relevant commands must be given by SMS, on the understanding that a message can contain multiple messages properly...

    • Posted 8 years ago
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  • GSM Remote Control – Gate Control
    Part 3 – Assembly

    Up to 200 numbers can be stored and enabled to control the relay, which allows people to use the gate opener not only in big condos and residences, but also in companies and all those other contexts...

    • Posted 8 years ago
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  • GSM Remote Control – GSM Module

    This GSM Mobile is used for our Remote Control (for example Gate Control, Temperature Control….). We use the word ‘module’ because, unlike what we did in our remote control projects, this time around the mobile phone is not...

    • Posted 8 years ago
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  • GSM Module – M10

    This module produced by Quectel, too, is GSM/GPRS (GSM Phase 2/2+) compatible and is a Quad-band type; the radio section works at a frequency of GSM 850 MHz, GSM 900 MHz, DCS 1800 MHz,  and PCS 1900...

    • Posted 8 years ago
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  • GSM Module – SIM900

    This is a GSM/GPRS-compatible Quad-band cell phone, which works on a frequency of 850/900/1800/1900MHz and which can be used not only to access the Internet, but also for oral communication (provided that it is connected to a...

    • Posted 8 years ago
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  • GSM Remote Control – Gate Control
    Part 4 – SMS Command

    Commands and settings can be sent by any cell phone via SMSs, as long as the message in question contains a password. Some of the commands can be composed without the use of a password (just so...

    • Posted 8 years ago
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  • GSM Remote Control – Part 1
    Introduction

    A modular solution allowing for the use of a single circuit for numerous functions, such as gate opening, bidirectional telecontrol, and many others. It adopts a newly-conceived low-cost GSM/GPRS module. Nowadays, creating a remote control is much...

    • Posted 8 years ago
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  • GSM Remote Control – Part 2
    MotherBoard Schematic

    Let us start by describing the device’s electric scheme in its entirety, that is, along with all its components; we should also state in advance that the module we call GSM is, in reality, the small board...

    • Posted 8 years ago
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  • GSM Remote Control – Part 3
    MotherBoard Assembly

    Now that we are familiar with the structure and functions of the base circuit, we can look at how it is built; let us state in advance that its realization presupposes a double-layer printed board with metallic...

    • Posted 8 years ago
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