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GSM Remote Control – 2 IN and 2 OUT DTMF
Part 1 – IntroductionExcellent 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 13 years ago
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GSM Remote Control – 2 IN and 2 OUT DTMF
Part 2 – SchematicLet’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 13 years ago
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GSM Remote Control – 2 IN and 2 OUT DTMF
Part 3 – AssemblyOn 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 13 years ago
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GSM Remote Control – 2 IN and 2 OUT DTMF
Part 4 – SMS CommandThe 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 13 years ago
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Arduino ISP (In System Programming) and stand-alone circuitsWe use an Arduino to program other ATmega without...
- Posted 12 years ago
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GSM GPS shield for ArduinoShield for Arduino designed and based on the module...
- Posted 11 years ago
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Small Breakout for SIM900 GSM ModuleSome post ago we presented a PCB to mount...
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Creating a Unique Electronic Musical Instrument: The Sound WallWe place metal foil notes on a panel...
- Posted 2 days ago
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Grand Piano Keys with ArduinoArcade games have captivated entire generations. Tasty Cakes is...
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- Posted 6 days ago
