Modulo registrazione suono voce ISD1820 Riproduzione Suono (microfono integrato) Vwersione con PCB Blu

Modulo registrazione suono voce ISD1820 Riproduzione Suono (microfono integrato) Vwersione con PCB Blu

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ARD00162
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Modulo registrazione suono voce ISD1820 Riproduzione Suono (microfono integrato) Vwersione con PCB Blu

Questo modulo è basato su ISD1820, che è un dispositivo di registrazione / riproduzione a più messaggi. Può offrire una vera registrazione vocale a singolo chip, storage non volatile e capacità di riproduzione per 8 - 20 secondi. Il campione è 3.2k e il totale dei 20s per il registratore.

L'utilizzo di questo modulo è molto semplice che puoi controllare direttamente dal pulsante a bordo o da un microcontrollore come Arduino, STM32, ChipKit ecc. Frome questi, è possibile controllare facilmente la registrazione, la riproduzione e ripetere e così via.

Se si desidera modificare la durata di registrazione, è necessario un resistore esterno per selezionare la durata del disco e la frequenza di campionamento, che può variare da 8 a 20 secondi (frequenza di campionamento 4-12kHz).
Il modulo di registrazione vocale della nostra fornitura predefinita collega la resistenza 100k tramite P2 mediante il cappuccio corto. Quindi la durata del record predefinita è 10s.

Feature

  • Push-button interface, playback can be edge or level activated
  • Automatic power-dwon mode
  • On-chip 8Ω speaker driver
  • Signal 3V Power Supply
  • Can be controlled both manually or by MCU
  • Sample rate and duration changable by replacing a single resistor
  • Record up to 20 seconds of audio
  • Dimensions: 37 x 54 mm

Cautions

  • VCC is signal of 3.3V, do not exceed this range, otherwise it by destroyed the module.
NumberDescriptions
1PLAYE - Playback, Edge-activated:When a HIGH-going transition is detected on continues until an End-of-Message (EOM) marker is encountered or the end of the memory space is reached. Upon completion of the playback cycle, the device automatically power down into standby mode Take PLAY LOW during a playback cycle will not terminate the current cycle. This pin has an internal pull-down device. Holding this pin HIGH will increase standby current consumption.
2REC - The REC input is an active-HIGH record signal.The device records whenever REC is HIGH. This pin must remain HIGH for the duration of the recording. REC takes precedence over either playback(PLAYL or PLAYE) signal. If REC is pulled HIGH during a playback cycle, the playback immediately ceases and recording begins. A record cycles is completed when REC is pulled LOW. An End-of-Message(EOM) marker is internally recorded, enabling a subsequent playback cycle to terminate appropriately. The device automatically power down to standby mode when REC goes LOW. This pin has an internal pull-down device. Holding this pin HIGH will increase standby current consumption.
3Speaker Outputs - The SP+ and SP- pins provide direct drive for loudspeakers with impedances as low as 8Ω. A single output may be used, but for direct-drive loud-speakers, the two opposite-polarity outputs provide an improvement in output power of up to four times over a single-ended connection will require an AC-coupling capacitor between the SP pin and the speaker. The SP+ pin and the SP- pin are internally connected through a 50KΩ resistance.When not in playback mode, they are floating.
4MIC - Microphone Input, the microphone input transfers its signals to the on-chip preamplifier. An on-chip Automatic Gain Control (AGC) circuit controls the gain of the preamplifier. An external microphone should be AC coupled this pin via a series capacitor. The capacitor value, together with an internal 10KΩ resistance on this pin, determines the low-frequency cutoff for the 1800 passband.
5REPLAY - loop play the record.
6FT - Feed Through: This mode allows use of the speaker drivers for external signals. The signal between the MIC and MIC_REF pins will pass through the AGC, the filter and the speaker drivers to the speaker output SP+ and SP-. The input FT controls the feed through mode. TO operate this mode, the control pins REC, PLAYE and PLAYL are held LOW at Vss. The pin FT is held HIGH to Vcc. For normal operation of record, play and power down, the FT pin is held at Vss. The FT pin has a weak pull-down to Vss.
7ISD1820 - IC chip
8Lead Out IO - VCC LED NC FT GND / VCC REC PLAYE PLAYL GND
9P2 - default short connection ROSC to 100kΩ resistance, that's means record duration is 10s
10PLAYL - Playback, Level-activated, when this input pin level transits for LOW to HIGH, a playback cycle is initiated. Playback continues until PLAY is pulled LOW or an End-of-Message (EOM) marker is detected, or the end of the memory space is reached. The device automatically powers down to standby mode upon completion of the playback cycle. This pin has an internal pull-down device. Holding this pin HIGH will increase standby current consumption.

User Guide

Record Operate Guide

  • 1. Push REC button then the RECLED(D1) will light and keep push until record end.
  • 2. Release the REC button.
  • 3. Select Playback mode:
    • -> PLAYE, just need push one time, and will playback all of the record or power down.
    • -> PLAYL, you need always push this button until you want to stop playback record or end.
    • -> REPEAT, switch 5 to right side, and the record will playback time a time until switch to light or power down.
  • 4. FT mode, when you switch 6 to right side, that means all of you speak to MIC will direct playback from Speaker.



Abbiamo disponibili datasheet di tutti i componenti, qualora non fosse presente nella scheda download del prodotto inviaci un messaggio dal modulo contattaci e lo pubblicheremo il prima possibile nel nostro sito.

 

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Modulo registrazione suono voce ISD1820 Riproduzione Suono (microfono integrato) Vwersione con PCB Blu

Modulo registrazione suono voce ISD1820 Riproduzione Suono (microfono integrato) Vwersione con PCB Blu

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