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Make A Wireless Speakers / Headphones With nRF24Z1

Here is the ATX 2.4GHz wireless digital audio transmitter module diagram, mainly by a ADC with nRF24Z1:

  ATX (21.1 KiB, 2,263 hits)

Here is the ARX 2.4GHz wireless digital audio receiver module schematic, mainly by a DAC with nRF24Z1:

  ARX (19.3 KiB, 1,627 hits)

nRF24Z1 has 2 configuration way, with EEPROM configuration or configured by MCU IIC interface. It can work properly after configuration. It’s a more easier that configured the nRF24Z1 by EEPROM, but using the MCU IIC interface, it will make the function more flexible, or even complete two-way transmission of data functions.

So here our demo is using the EEPROM configuration way. The first 3 bytes is used for nRF24Z1, it should be identified with a fixed value of 0×30,0×00,0×00. The value for the register address n will be 3+n.  And the value of register address 0×7d to 0×7f will not be read from EEPROM, so the EEPROM requires a minimum capacity of 128 bytes. Below is the The configuration table for nRF24Z1 in EEPROM:

nRF24Z1 ATX-side configuration values ​​of all registers:

0×00    0×00    0×48    0×00    0×00    0×00    0×00    0×00    0×00
0×08    0×00    0×00    0×00    0×00    0×06    0×1c    0×34    0×4c
0×0F    0×18    0×30    0×48    0×14    0×2c    0×44    0×10    0×28
0×18    0×40    0×0c    0×24    0×3c    0×08    0×20    0×38    0×04
0×1F    0×1e    0×36    0×4e    0×1a    0×32    0×4a    0×16    0×2e
0×28    0×46    0×12    0×2a    0×42    0×0e    0×26    0×3e    0×0a
0×2F    0×22    0×3a    0×0a    0×12    0×26    0×26    0×08    0xff
0×38    0×20    0×98    0×38    0xa2    0×34    0×85    0×00    0×00
0×3F    0×00    0×00    0×00    0×00    0×00    0×00    0×00    0×00
0×48    0×00    0×03    0×20    0×00    0×00    0×00    0×00    0×00
0×4F    0×02    0×00    0×04    0×02    0×80    0×00    0×03    0×00
0×58    0×00    0×00    0×82    0×00    0×00    0×00    0×00    0×00
0×5F    0×00    0×00    0×00    0×00    0×00    0×00    0×00    0×00
0×68    0×00    0×00    0×00    0×00    0×00    0×00    0×00    0×00
0×6F    0×82    0×00    0×00    0×00    0×00    0×00    0×00    0×00
0×78    0×00    0×00    0×00    0×00    0×00    0×00    0×00    0×00

nRF24Z1 ARX-side configuration values ​​of all registers:

0×00    0×00    0×48    0×00    0×00    0×00    0×00    0×00    0×00
0×08    0×00    0×00    0×00    0×00    0×06    0×1c    0×34    0×4c
0×0F    0×18    0×30    0×48    0×14    0×2c    0×44    0×10    0×28
0×18    0×40    0×0c    0×24    0×3c    0×08    0×20    0×38    0×04
0×1F    0×1e    0×36    0×4e    0×1a    0×32    0×4a    0×16    0×2e
0×28    0×46    0×12    0×2a    0×42    0×0e    0×26    0×3e    0×0a
0×2F    0×22    0×3a    0×0a    0×12    0×26    0×26    0×08    0xff
0×38    0×20    0×98    0×38    0xa2    0×34    0×85    0×00    0×00
0×3F    0×00    0×00    0×00    0×00    0×00    0×00    0×00    0×00
0×48    0×00    0×03    0×20    0×00    0×00    0×00    0×00    0×00
0×4F    0×02    0×00    0×04    0×02    0×80    0×00    0×03    0×00
0×58    0×00    0×00    0×82    0×00    0×00    0×00    0×00    0×00
0×5F    0×00    0×00    0×00    0×00    0×00    0×00    0×00    0×00
0×68    0×00    0×00    0×00    0×00    0×00    0×00    0×00    0×00
0×6F    0×82    0×00    0×00    0×00    0×00    0×00    0×00    0×00
0×78    0×00    0×00    0×00    0×00    0×00    0×00    0×00    0×00

nRF24Z1 has the processor and curing all the software and wireless communications interference frequency-hopping protocol in side, you can use these parts without program, but  only needs to configure some parameters. So it’s a very easy use way to build a 2.4G wireless digital speakers / headphones with CD quality.

Soon you will see this modules in stock on iStore.