Grove -Recorder v2.0

Feature

• Easy-to-use with sound volume control, record, playback functions and Grove interfaces.
• Easy to be programmed for plenty of applications with MCU.
• Automatic power-down mode, variable recording and playback duration, non-volatile storage.
• Low power consumption.
• Shipped with a speaker (8Ω/2W).

Description

Grove - Recorder v2.0 is an upgraded recorder with enriched features. It can record 8-20 seconds of audio with high-quality and natural voice. In addition, it also gets sound volume control and playback functions. With MCU such as Seeeduino or Arduino board, you can prototype various applications quickly with user-friendly interfaces. Recording time could be customized(if you require) by replacing the different resistor and the solution to do this will be described in later sections.

Specification

Parameter	Value
Operating voltage	3.3~5.0V(DC)
Ripple(at Max power)	≤ 50mV
Recording duration(default)	12 seconds(MAX value)
Playback duration(default)	12 seconds(MAX value)
Sample rate	53 kHz
Chip	ISD1820PY(Datasheet), NS8002(Volume Amplifier)

ROSC	Duration	Sampling Frequency	Input Bandwidth
80 KΩ	8 secs	8.0 kHz	3.4 kHz
100 KΩ (default)	10 secs	6.4 kHz	2.6 kHz
120 KΩ	12 secs	5.3 kHz	2.3 kHz
160 KΩ	16 secs	4.0 kHz	1.7 kHz
200 KΩ	20 secs	3.2 kHz	1.3 kHz

Application

• Alarms
• Toys
• Short-duration-echo required applications

Part list

1 x Grove - Recorder v2.0
1 x Grove cable
1 x Speaker

What's Grove?

Grove makes it easier to connect, experiment, and simplify the prototyping process. No jumpers or soldering required. We have developed more than 300 Grove modules, covering a wide range of applications that can fulfil a variety of needs. Not only are these open hardware, but we also have open-source software.