About John_zhang

John_zhang · 2019-02-28

I had X-NUCLEO-NFC05A1(3911B reader), NUCLEO-L476RG(MCU), ST25DV16(tag). 3911B would read message from tag by RF and transmit to MCU by SPI interface. Now I hope the message is displayed at 3.5" LCD. How to select LCD integrated simply? such as SPI...

John_zhang · 2018-12-17

Antenna is about 5 Ohm and 4.5uH, why is 1Ohm?

John_zhang · 2019-02-28

Hi,Thank you!BR,John

John_zhang · 2019-01-25

Hi HC,My friend Liu has no time to reply. Select this package is that it has very small package and 64kb. SO8N and TSSOP package is big . UFDFPN8 is only 4kb version.Would you tell me your email? We have some questions.Thank you very much!BR,John

John_zhang · 2018-12-20

Hello DenisThanks.It is important for me.Have a nice day!BR,zhang

John_zhang · 2018-12-18

Hi,Thanks for your reply. Which resistor to remove? Thanks!BRzhang

John_zhang · 2018-12-18

I hope to design R and L value of the st25dv64 external antenna, not internal PCB antenna by tool. In the AN2972 document, “2.3 Basic equations “ , I don’t know Rs and Cs. So I could not designed antenna of st25dv64. In the other document about M24LR...

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How to select 3.5" LCD and matrix keyboard for NUCLEO-L476RG

That is 1 Ohm between AC0 and AC1 in X-NUCLEO-NFC04A1 ?

Re: How to select 3.5" LCD and matrix keyboard for NUCLEO-L476RG

Re: what is inductance(uH) of the X-NUCLEO-NFC04A1

Re: That is 1 Ohm between AC0 and AC1 in X-NUCLEO-NFC04A1 ?

Re: That is 1 Ohm between AC0 and AC1 in X-NUCLEO-NFC04A1 ?

Re: That is 1 Ohm between AC0 and AC1 in X-NUCLEO-NFC04A1 ?