diff --git a/Decoder-for-NRF24L01.md b/Decoder-for-NRF24L01.md
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+NRF24L01 is produced by nordic semiconductor. It is popular to be used in radio control of mini-drone.
+Right now, you can use portapack to decode the data sent from NRF24L01. Right now, only 250KPS mode is supported.
+
+##Reference:
+https://www.youtube.com/watch?v=8ZnWxhCkDkk
+https://blog.csdn.net/shukebeta008/article/details/105478579
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diff --git a/decoder-for-NRF24L01.md b/decoder-for-NRF24L01.md
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-NRF24L01 is produced by nordic semiconductor. It is popular to be used in radio control of mini-drone.
-Right now, you can use portapack to decode the data sent from NRF24L01. Right now, only 250KPS mode is supported.
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