FEATURES:
 
Record up to 10 seconds of voice
Embedded microphone
Support 3 playing modes: Loop, Select, and One-time
Automatic power-down mode
On-chip 8Ω speaker driver
Signal 3V power supply
Can be controlled both manually or by MCU
Sample rate and duration changeable by replacing a single resistor
Arduino Compatible
 
SPECIFICATIONS:
 
Operating voltage: 3V - 5V DC
Dimensions: 38 x 42.5 mm
 
RECORD OPERATE GUIDE:
 
Push the REC button, and the RECLED (D1) will light. Keep pressing until the recording ends.
Release the REC button.
Select playback mode:
PLAYE: Push once to playback the recording or power down.
PLAYL: Hold the button until playback ends or is manually stopped.
REPEAT: Switch position 5 to the right side for continuous playback until switched back or powered down.
FT mode: Switch position 6 to the right side to enable direct playback of the microphone input through the speaker.
 
Pins
MIC: Microphone Input – Transfers signals to the on-chip preamplifier.
VCC: 3.3V power supply.
GND: Power ground.
FT (Feed Through): Active-HIGH – Enables speaker drivers for external signals. Set LOW for normal operation; ensure REC, PLAYE, and PLAYL are LOW during this mode.
P-L (Playback, Level-activated): Active-HIGH – Starts playback when transitioning from LOW to HIGH.
P-E (Playback, Edge-activated): Active-HIGH – Starts playback on a HIGH transition until an End-of-Message (EOM) or memory end.
REC: Active-HIGH – Starts recording while held HIGH, overriding PLAYL or PLAYE.
 
PACKAGING LIST:
 
1 x Playback Module ISD1820