diff --git a/libraries/SPI/examples/ADC_read_write_registers/ADC_read_write_registers.ino b/libraries/SPI/examples/ADC_read_write_registers/ADC_read_write_registers.ino
index 00c931f..771a1cf 100644
--- a/libraries/SPI/examples/ADC_read_write_registers/ADC_read_write_registers.ino
+++ b/libraries/SPI/examples/ADC_read_write_registers/ADC_read_write_registers.ino
@@ -42,7 +42,7 @@ void ADC_write_register(uint8_t registerAddress, uint8_t registerValueToWrite)
 // ----------------------------------------- //
 void setup() 
 {
-  Serial.begin(115200);
+  Serial.begin(9600);
   Serial.println("Start spi test");
 
   // init chip select pin