gas_sensor

commit aadaa89dc7bdee43839e0f8f4a8eb34874256c51
parent 29802bf51a1760c02e4b8ee4dfaed156ca1d694f
Author: Tonton <tonterface@proton.me>
Date:   Thu,  9 Jul 2026 15:18:06 +0200

Implement decide properly

Diffstat:
M
src/sensor.cpp
 | 
22
++++++++++++++--------

1 file changed, 14 insertions(+), 8 deletions(-)
diff --git a/src/sensor.cpp b/src/sensor.cpp
@@ -10,6 +10,7 @@
 #define SAMPLE_NUMBER   10
 #define SENSOR_NUMBER   1
 #define INTERVAL_NUMBER 3
+#define SAMPLE_RATE 500
 
 enum {
 	SENSOR_1 = 26,
@@ -25,7 +26,7 @@ struct interval {
 
 /* function definitions*/
 static int *read_series(int sensor);
-static int find_interval(int *series, int sensor);
+static int find_interval(int *series, int sensor, int *result);
 static int in_range(int num, int u_lim, int l_lim);
 static int get_average(int *series);
 static int decide_result(int *ser);
@@ -69,7 +70,7 @@ read_series(int sensor)
 		ser[i] = sensor_read(sensor);
 		Serial.print(ser[i]);
 		Serial.print("\n\r");
-		delay(500);
+		delay(SAMPLE_RATE);
 	}
 	return ser;
 }
@@ -101,9 +102,9 @@ get_average(int *series, int size)
 	return avg;
 }
 
-/* find which interval of a specific sensor an int is in */
+/* finds which of a sensors intervals an int is in */
 static int
-find_interval(int in, int sensor)
+find_interval(int in, int sensor, int *result)
 {
 	struct interval *ivl= NULL;
 	int u_lim, l_lim = 0;
@@ -114,6 +115,7 @@ find_interval(int in, int sensor)
 		u_lim = ivl[i].upper_limit;
 		if (in_range(in, u_lim, l_lim)) {
 			Serial.print("In interval: ");
+			result[i]++;
 		} else {
 			Serial.print("Not in interval: ");
 		}
@@ -127,8 +129,10 @@ find_interval(int in, int sensor)
 static int
 decide_result(int *ser)
 {
-	/* testing */
-	return 1;
+	for (int i = 0; i < INTERVAL_NUMBER; i++) {
+		printf("Interval %i: %i\n", i + 1, ser[i]);
+	}
+	return 0;
 }
 
 void
@@ -157,6 +161,7 @@ int
 sensor_analyze(void)
 {
 	int *ser, *tmp, res, avg;
+	int result[INTERVAL_NUMBER] = { 0 };
 
 	ser = tmp = NULL;
 	res = avg = 0;
@@ -169,10 +174,11 @@ sensor_analyze(void)
 			goto out_free_ser;
 		}
 		avg = get_average(ser, SAMPLE_NUMBER);
-		tmp[i] = find_interval(avg, i);
+		find_interval(avg, i, result);
 	}
 
-	res = decide_result(tmp);
+	res = decide_result(result);
+
 
 out_free_ser:
 	free(ser);