Record playback kit
This module allows a short (10 second) message to be recorded and played back at the push of a button. There is one button to play the message and another to re-record the message which can be done over and over again.
The board includes a status LED which indicates that recording is in progress or that playback has completed. Both the speaker and microphone are PCB mounted so the only flying leads are for the battery holder which takes 2 AA batteries.
Because the module shuts down when it is not in use the batteries will last a very long time. An interface connector is available for more advanced users that wish to access the control signals. Requires x2 AA batteries, available separately.
The kit consists of:
x2 1K resistor 5%
x2 4.7K resistor 5%
x1 100K resistor 5%
x1 Capacitor (ceramic disc) 1nF
x3 100nF ceramic disc capacitor
x1 Capacitor, electrolytic, 16V, 220uF
x1 Capacitor, electrolytic 4.7uF
x1 5mm red LED
x2 6mm PCB mount switch - height 9.5mm
x1 14 pin IC holder
x1 ISD1820 Record playback IC
x1 31mm fully enclosed speaker
x1 Battery holder with leads (2x AA)
x1 Record playback PCB
The board has an interface connector which allows some of the more advanced options of the IC to be accessed. This allows the following features:
- Connection of remote (off board) switches for record & playback.
- Access to the pins to part play a message or to use the looped play option.
- Control by a micro-controller (for example Arduino or PIC) if required.
- Access to the audio output signal, which can be used with a more powerful amplifier if required.
No posts found