I have jut finished a prototype of GE863-QUAD breakout board. It is prepared for usage with an Arduino compatible board.
The main features are:
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The PCB designed for 100% full hand assembling of GE863
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Easy switching between serial communication PC-GE863 or Arduino-GE863
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Electret microphone on the PCB
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1W Fully-Differential Audio Amplifier
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DTMF receiver for easy controlling of something using any phone
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Back up capacitor for alarm features (GSM module can reset Arduino board)
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Electrodynamic buzzer
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Embedded PCB Antenna and MMCX connector
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2A LDO power supply for GSM module
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GSM module can be supplied either from USB or adaptor (it will chose automatically)
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SIM holder
I would like to solve following features in the finall version:
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Battery, charger support
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Add some inputs and outputs (directly from GSM module)
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I will probably skip PCB antenna (quite large) and use a right angle SMA connector (very common)
Does anybody have any inputs what to include to the finall version also?
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