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Home   >   Posts tagged "2 IN and 2 OUT DTMF"
  • TDG140_7
    GSM Remote Control – 2 IN and 2 OUT DTMF
    Part 1 – Introduction

    Excellent to remotely control via GSM the activation of engines, lightening or watering systems and alarm systems. It sends commands through SMS as well as with DTMF dual tones and allows you to check if they were...

    • Posted 863 days ago
    • 0
  • TDG140_7
    GSM Remote Control – 2 IN and 2 OUT DTMF
    Part 2 – Schematic

    Let’s now look into the schematic diagram; in it you can note the usual Microchip microcontroller governing the GSM/GPRS module activity, controlling the logical condition of the two opto-isolated inputs and managing the two relays. Moreover, the...

    • Posted 864 days ago
    • 1
  • TDG140_7
    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 865 days ago
    • 0
  • TDG140_7
    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 866 days ago
    • 0

Opinions

  • DEFCAD. A CrackDown on 3D printable Guns: Security or Censorship?

    I was very impressed in the last days of the...

    • Posted 11 days ago
    • 1
  • Re-“Making” Education

    This is the age of the maker. There is no...

    • Posted 53 days ago
    • 2
  • Crowdfunding your Open Source Eectronics Projects

      Many of you may have wondered several times about...

    • Posted 62 days ago
    • 2
  • The Ultimate Comparison of IOT Development Boards

    With this post we wanted to compare the latest arrived...

    • Posted 68 days ago
    • 21
  • The case for an Open Source Washing Machine

    In this world we have open source projects of all...

    • Posted 75 days ago
    • 6

Tutorials

  • AT Command Tester: the free online software tool to test GSM AT commands

    AT command tester is a free online software tool that...

    • Posted 90 days ago
    • 2
  • How to make an Arduino shield with Eagle CAD – Tutorial

    There are many CAD developed to assist the electronic designers...

    • Posted 305 days ago
    • 4
  • Arduino Full Memory: how to upgrade to the last ATMEL Toolchain version

    This short report is aimed to the most “advanced” users...

    • Posted 413 days ago
    • 5

Mods and Hacks

  • Using GSM module to remotely control a green wall

    We’re a Finnish start-up company which specializes in active green...

    • Posted 43 days ago
    • 0
  • Star Clock: Ikea Design, Arduino technology

      IKEA’s Figgjo, is designed to be a mirror, but...

    • Posted 55 days ago
    • 0
  • IKEA SMS lamp with GSM shield

          We create a lamp controlled by SMS...

    • Posted 235 days ago
    • 3
  • Popular

  • Latest

  • Comments

  • bell
    Arduino GSM shield

    Download GSM_Shield_Library New GSM/GPRS library       This is a...

    • Posted 791 days ago
    • 184
  • FT908GPS_SIM908
    Localizer with SIM908 module

    The device is based on a GSM/GPRS module with...

    • Posted 349 days ago
    • 102
  • GSM shield_COP
    GSM GPS shield for Arduino

    Shield for Arduino designed and based on the module...

    • Posted 260 days ago
    • 75
  • Arduino_standalone_breadboardNOreset
    Arduino ISP (In System Programming) and stand-alone circuits

    We use an Arduino to program other ATmega without...

    • Posted 433 days ago
    • 67
  • Pinout FT900
    Small Breakout for SIM900 GSM Module

    Some post ago we presented a PCB to mount...

    • Posted 725 days ago
    • 58
  • screenshot_3_6_13_6_01_pm
    Autodesk acquires Tinkercad

    In case you lost it, Autodesk announced they’ve signed...

    • Posted 11 hours ago
    • 0
  • tSlotEdge_crop
    MakerCase – Easy Laser Cut Case Design

    MakerCase is a website where you can generate files...

    • Posted 4 days ago
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  • Souliss Overview Small
    Get in touch with your Things – Souliss

    Some months ago we came across the RGB Shield...

    • Posted 6 days ago
    • 0
  • Othermill2_4x3.large
    Othermill: a desktop 3D computer-controlled mill (on Kickstarter)

        With our mill, you can produce custom...

    • Posted 6 days ago
    • 0
  • 3dhubs
    Local & Social 3D Printing | 3D Hubs

    Collaborative Production - 3D Hubs enables everyone with a...

    • Posted 7 days ago
    • 0
  • Truenam says:

    We already have open source potato cannons. T...

  • Johan Henselmans says:

    I have been trying to get this shield to work...

  • Ken Lee says:

    Thanks. May i know if i am able to code this ...

  • BorisLandoni says:

    I'm sorry, not available ...

  • BorisLandoni says:

    Normaly you hate to use a two layer PCB, with...

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