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Information

1, onboard ISD1760 chip
2, onboard microphone, direct recording
3, 75 seconds of voice recording
4, with recording, erasing, playback, FT direct, fast forward, reset, volume adjustment etc.
5, the main chip pin has led, can control the operation by SCM
6, high quality natural voice reduction, used as a megaphone module
7, working voltage: 5V
8, board size: 49 (mm) x41.5 (mm)

Independent work instructions (according key to instruction)
1 REC
Always Hold down the REC key, at the same time, LED is bright, then speak to MIC, content of the talk will be recorded into the ISD1700 voice chip.
After finishing, taking up this key, LED will go out, pressing again as beganing to record the second period, subsequent paragraphs operates like that
2 PLAY
There are two ways of edge trigger and trigger.(Note: after recording, playback pointer  stay in the final section as for start address, then it will play the last paragraph)
(1) edge trigger: press the PLAY key to put the current period during playback, LED always twinkle until the end of playback. After playing, the playback pointer to the end of the period just the start address, the PLAY button to put just put this paragraph when pressing again
(2) level trigger: used to press the PLAY key chip will put all of the voice information to play, and cycle until the release of this button.

3 FWD
Implementation of playback ago, press this key, the playback pointer will point to the next section, press two times, it points to the segment after the second section. During playback click this button to stop playing the current segment and then broadcast the next paragraph, if the current player is the last paragraph, then stop playing the last paragraph and play the first
4 ERASE
The operation of single block erase is effect on only the first and last paragraph, when playback pointer is located at the first or last paragraph, clicking this button will erase the first or last paragraph. Playback pointer is jumping to the erase before the second or last second paragraph. Often click this button more than 3 seconds, it is into the "all erase operating mode", while LED flash two times, and continue to press, the LED put off  when it flashes the seventh times, then you lose this key, the voice information of chip are all erased.
5 RESET
Click this button chip to perform reset operation. After resetting, play and record pointer point to the last paragraph, it means that playback indicator point to the last section’s front, the recording indicator point to the last paragraph of the end. Then played the last paragraph, began to record the new last paragraph.

6 VOL
Pressing this key can modulate the output voice size of chip. Chip voice default output for maximum value, each pressing, the sound is according to 4dB to dying out. Until the minimum voice, continue to click this button, each pressing, the voice increase 4dB (Note: after implementing reset, the output sound is maximum)
7 FT
Connect FT pin and GND, continued to keep a low power conduction through mode. Operation of conduction through will make voice from the Analn end directly to the horn or AUD output. During the recording, if press FT, recorded the Analn into the speech signal, too