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Yun Shield runs Open Source OpenWrt system and it is fully compatible with Arduino IDE v1.5.4 or later. Yun Shield is the ideally choice for Arduino Projects w Yun Shield is one of the most powerful shields for Arduino Board. Yun Shield is designed to solve the Internet connectivity and storage issue for Arduino Board. Yun Shield runs Open Source OpenWrt system (Same system as runs in Arduino Yun) and it is fully compatible with Arduino IDE v1.5.4 or later. Yun Shield is the ideally choice for Arduino Projects which require various internet connections and more storage.
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The Sound Recorder Module uses the ISD1760 Chip to record and store voice signals. ISD1700 series recording chip is a kind of high integration, high performance chip. This module can be multiple recording, the sampling rate can be set to 6k or 8k by the on-board resistor. There are also some inside sounds to remind the user working state of the module, such as record beginning, record stopping, record erasing , etc. The recording data is stored in the FLASH, without any compression to ensure a good quality. You can easily control this module manually or by Arduino. There are some keys on the module including “REC”,”PLAY”,”EARSE”, you can control the module with these keys.
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ISD1820 chipset - On board microphone for directly recording - Supports up to around 10 seconds - High-quality, natural voice restored, can be used as a loudspeaker module - Loop playback, jog playback, single-pass playback - All main pins are lead out, allows to operate with microcontroller - Working voltage: 3~5V
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It is the Third recording module developed , this version is distinctly improved in the acoustic fidelity relative to the first and second version.
- Built-in microcontroller serial communication interface
- 3V single-supply operation, low power consumption
- Multi-information processing
- Working current 25-30mA, to maintain current 1μA
- Information is not power to save 100 years (typical)
- High-quality, natural voice reduction technology
- 10 million times the recording period (typical)
- Automatic squelch
- Free adjustment of the clock chip, the external clock can be selected