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User Guide
3.2 Application board
The nRF24L01-VHR1 application board contains all peripherals necessary to build a complete audio mod-
ule from the nRF24L01-VHR1 radio module.
Figure 6. Application board components
3.2.1 Audio interface
This module can be used to set up a wireless audio link, for example, from a PC to a headset. The radio
module is the same for both sides of the link, but needs some external components to interface with either
the PC audio connections, or a microphone/loudspeaker for a headset.
1 Radio module 7 P3 external power
2 Linear regulator 8 Batteries
3 Jumpers 9 Switches 7 and 8
4 Audio interface 10 ISP programming
5 Jumpers 11 Buttons
6Switch 6
4
5
7
8
10
11
3
1
2
6
9