I've made an PCB with an NRF24l01 (and some other stuff). But the NRF24l01 doesn't really work. I've tested the code (an HowToMechatronics example) with an Arduino nano connecting to an Arduino UNO and that worked fine but Arduino Leonardo (Atmega32u4) to Arduino UNO doesn't work for some reason. he…

NRF24L01 doesnt work with Arduino leonardo

J-M-L November 22, 2021, 1:38pm 12

Yes, just connect the GND of your external power supply to your Arduino's GND as well so that they share the same reference

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