Update Adafruit_PN532.cpp

added 1ms delay for spi, because V3 board from Aliexpress doesn't read cards properly without it
adafruit · Jan 23, 2024 · 585ea1d · 585ea1d
1 parent f4e1a91
commit 585ea1d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Adafruit_PN532.cpp b/Adafruit_PN532.cpp
@@ -326,7 +326,7 @@ bool Adafruit_PN532::sendCommandCheckAck(uint8_t *cmd, uint8_t cmdlen,
   // I2C works without using IRQ pin by polling for RDY byte
   // seems to work best with some delays between transactions
   uint8_t SLOWDOWN = 0;
-  if (i2c_dev)
+  if (i2c_dev || spi_dev)  // added spi since V3 Chinese counterpart board doesn't work properly without 1ms delay 
     SLOWDOWN = 1;
 
   // write the command