diff --git a/examples/i2corspi_register/i2corspi_register.ino b/examples/i2corspi_register/i2corspi_register.ino
index 555cf3b..992a2e0 100644
--- a/examples/i2corspi_register/i2corspi_register.ino
+++ b/examples/i2corspi_register/i2corspi_register.ino
@@ -28,11 +28,11 @@ void setup() {
   }
 
   Adafruit_BusIO_Register id_reg = Adafruit_BusIO_Register(i2c_dev, spi_dev, ADDRBIT8_HIGH_TOREAD, 0x0F);
-  uint8_t id;
+  uint8_t id=0;
   id_reg.read(&id);
   Serial.print("ID register = 0x"); Serial.println(id, HEX);
 }
 
 void loop() {
   
-}
\ No newline at end of file
+}
diff --git a/examples/spi_registers/spi_registers.ino b/examples/spi_registers/spi_registers.ino
index e24f1aa..091a353 100644
--- a/examples/spi_registers/spi_registers.ino
+++ b/examples/spi_registers/spi_registers.ino
@@ -15,12 +15,12 @@ void setup() {
   }
 
   Adafruit_BusIO_Register id_reg = Adafruit_BusIO_Register(&spi_dev, 0x0F, ADDRBIT8_HIGH_TOREAD);
-  uint8_t id;
+  uint8_t id = 0;
   id_reg.read(&id);
   Serial.print("ID register = 0x"); Serial.println(id, HEX);
 
   Adafruit_BusIO_Register thresh_reg = Adafruit_BusIO_Register(&spi_dev, 0x0C, ADDRBIT8_HIGH_TOREAD, 2, LSBFIRST);
-  uint16_t thresh;
+  uint16_t thresh = 0;
   thresh_reg.read(&thresh);
   Serial.print("Initial threshold register = 0x"); Serial.println(thresh, HEX);
 
@@ -31,4 +31,4 @@ void setup() {
 
 void loop() {
   
-}
\ No newline at end of file
+}