Fixing issue 4

Author: Nathan Seidle

examples/Example8_SPO2/Example8_SPO2.ino

@@ -34,7 +34,7 @@ MAX30105 particleSensor;
 
 #define MAX_BRIGHTNESS 255
 
-#if defined(ARDUINO_AVR_UNO)
+#if defined(__AVR_ATmega328P__) || defined(__AVR_ATmega168__)
 //Arduino Uno doesn't have enough SRAM to store 100 samples of IR led data and red led data in 32-bit format
 //To solve this problem, 16-bit MSB of the sampled data will be truncated. Samples become 16-bit data.
 uint16_t irBuffer[100]; //infrared LED sensor data

src/spo2_algorithm.cpp

@@ -60,7 +60,7 @@
 #include "arduino.h"
 #include "spo2_algorithm.h"
 
-#if defined(ARDUINO_AVR_UNO)
+#if defined(__AVR_ATmega328P__) || defined(__AVR_ATmega168__)
 //Arduino Uno doesn't have enough SRAM to store 100 samples of IR led data and red led data in 32-bit format
 //To solve this problem, 16-bit MSB of the sampled data will be truncated.  Samples become 16-bit data.
 void maxim_heart_rate_and_oxygen_saturation(uint16_t *pun_ir_buffer, int32_t n_ir_buffer_length, uint16_t *pun_red_buffer, int32_t *pn_spo2, int8_t *pch_spo2_valid, 

src/spo2_algorithm.h

@@ -84,7 +84,7 @@ static  int32_t an_x[ BUFFER_SIZE]; //ir
 static  int32_t an_y[ BUFFER_SIZE]; //red
 
 
-#if defined(ARDUINO_AVR_UNO)
+#if defined(__AVR_ATmega328P__) || defined(__AVR_ATmega168__)
 //Arduino Uno doesn't have enough SRAM to store 100 samples of IR led data and red led data in 32-bit format
 //To solve this problem, 16-bit MSB of the sampled data will be truncated.  Samples become 16-bit data.
 void maxim_heart_rate_and_oxygen_saturation(uint16_t *pun_ir_buffer, int32_t n_ir_buffer_length, uint16_t *pun_red_buffer, int32_t *pn_spo2, int8_t *pch_spo2_valid, int32_t *pn_heart_rate, int8_t *pch_hr_valid);