Revision 1.0
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nRFready Microphone User Guide
3
System overview
As technology has evolved, microphone applications have changed. One might say the trend has gone
from technology mainly used on the TV, to technology mainly used
in front of
the TV.
All video game consoles, for example, have one or more music video games which require microphones.
This allows children, as well as adults, to sing to the music of their favorite artists.
Figure 2.
Typical microphone setup
The system consists of two microphones and a receiver:
•
Microphones: These are the audio input devices that the user typically will hold in his hand while
singing or talking.
•
Receiver: This is the audio output device that the user typically has connected to a computer to
record or playback audio.
The system is designed to be simple to set up and use, with only one button and LED on the microphone
board, and one button and two LEDs on the receiver board. The buttons are used to power ON/OFF or pair
the boards, while the LEDs indicate link or pairing status to the user.
Two AAA batteries are used to power the microphone, and re-chargeable batteries can be used due to an
on-board DC/DC converter. With continuous use, the batteries should last for up to 100 hours. To decrease
the power consumption, one can consider removing the LED on the microphone board and thereby only
having LEDs on the receiver for status indication.
