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shahzadafawad / PN532-RFID-NFC-Module-with-Arduino

the PN532 NFC RFID Module V3 is a very powerful and flexible RFID module. It can be used for many different applications such as access control, time attendance systems, animal identification, inventory management, and more. It uses less power than the MFRC522
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PN532 chip don't detected #1

Open jemarr opened 1 year ago

jemarr commented 1 year ago

Hi. Congrats for your lib.

I've tested it with i2c and almost every start up the program don't detect the PN532 board and makes a memory dump. As soon (only some times) detects the board then I can read tags without any issue.

My esp8266 board is a Wemos D1 mini. SDA at D2, SCL at D1

I tested with additional 4k7 pullup resistors on SDA and SCL without any improvement.

Dou you know how to solve it, please ?

Thanks

jemarr commented 1 year ago

image

jemarr commented 1 year ago

image

shahzadafawad commented 1 year ago

Please visit my YouTube channel electronic clinic I have explained everything.

Sent from Yahoo Mail on Android

On Wed, Jun 21, 2023 at 5:09 PM, @.***> wrote:

Hi. Congrats for your lib.

I've tested it with i2c and almost every start up the program don't detect the PN532 board and makes a memory dump. As soon (only some times) detects the board then I can read tags without any issue.

My esp8266 board is a Wemos D1 mini. SDA at D2, SCL at D1

I tested with additional 4k7 pullup resistors on SDA and SCL without any improvement.

Dou you know how to solve it, please ?

Thanks

— Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you are subscribed to this thread.Message ID: @.***>