Dyah Setyaningsih: Difference between revisions

Dyah Setyaningsih (view source)

Revision as of 11:44, 19 December 2024

3,414 bytes added , 19 December 2024

add todos and pseudocodes

Dyah

151

edits

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 * Power supply 12 volts
 * Lots of cables...
+== To-Do List ==
+* Implement stepper motor speed with AccelStepper library (based on category (CO<sub>2</sub> value)) (s. Pseudocode below)
+* Stabilize bubble rings holder to the stepper motor
+* For better and more directed air flow: add nozzle/funnel?
+* Make wiring diagram
+* Documentation
+== Pseudocode ==
+Idea: assign CO<sub>2</sub> value into 3 categories; '''Low, Medium, High''' and adjust the stepper motor speed based on the category.<syntaxhighlight lang="arduino">
+  DEFINE constants for CO2 thresholds:
+    LOW_MEDIUM_THRESHOLD = 500 //to be determined via trials
+    MEDIUM_HIGH_THRESHOLD = 700 //to be determined via trials
+  DEFINE speed settings for each category:
+    LOW_SPEED = 400      // Steps per second
+    MEDIUM_SPEED = 800   // Steps per second
+    HIGH_SPEED = 1200    // Steps per second
+  INITIALIZE variable currentCategory to -1
+  INITIALIZE variable lastCategory to -1
+  FUNCTION setup():
+    BEGIN
+      SET maximum speed for stepper motor (e.g., 1200 steps/sec)
+      SET acceleration for smoother operation (e.g., 500 steps/sec^2)
+      START serial communication for debugging
+    END
+  FUNCTION loop():
+    BEGIN
+      READ CO2 value from the sensor (variable CO2)
+      DETERMINE currentCategory:
+        IF CO2 < LOW_MEDIUM_THRESHOLD:
+          SET currentCategory to LOW
+        ELSE IF CO2 < MEDIUM_HIGH_THRESHOLD:
+          SET currentCategory to MEDIUM
+        ELSE:
+          SET currentCategory to HIGH
+      IF currentCategory is different from lastCategory:
+        BEGIN
+          SWITCH currentCategory:
+            CASE LOW:
+              SET stepper motor speed to LOW_SPEED
+            CASE MEDIUM:
+              SET stepper motor speed to MEDIUM_SPEED
+            CASE HIGH:
+              SET stepper motor speed to HIGH_SPEED
+          UPDATE lastCategory to currentCategory
+        END
+      RUN stepper motor at the current speed (use AccelStepper's runSpeed() function)
+    END
+</syntaxhighlight>Idea to determine thresholds: run trials on plants enclosed environment.<syntaxhighlight lang="arduino">
+  DEFINE variables:
+    minCO2 = Infinity     // Initialize to a very high value
+    maxCO2 = -Infinity    // Initialize to a very low value
+    startTime = CURRENT_TIME
+    trialDuration = 30 minutes (in milliseconds, e.g., 30 * 60 * 1000)
+  FUNCTION setup():
+    BEGIN
+      INITIALIZE serial communication for debugging
+      INITIALIZE CO2 sensor
+      PRINT "Starting 30-minute CO2 trial..."
+    END
+  FUNCTION loop():
+    BEGIN
+      WHILE (CURRENT_TIME - startTime) < trialDuration:
+        BEGIN
+          READ current CO2 value from sensor (variable currentCO2)
+          IF currentCO2 < minCO2:
+            UPDATE minCO2 to currentCO2
+          IF currentCO2 > maxCO2:
+            UPDATE maxCO2 to currentCO2
+          PRINT currentCO2, minCO2, and maxCO2 to serial monitor
+          WAIT for 1 second //reduce sampling frequency
+        END
+      PRINT "Trial Complete."
+      PRINT minCO2 and maxCO2 to serial monitor
+      CALCULATE range = maxCO2 - minCO2
+      CALCULATE lowMediumThreshold = minCO2 + (range / 3)
+      CALCULATE mediumHighThreshold = minCO2 + (2 * range / 3)
+      PRINT "Thresholds:"
+      PRINT "Low-Medium Threshold: " + lowMediumThreshold
+      PRINT "Medium-High Threshold: " + mediumHighThreshold
+    END
+</syntaxhighlight>
 == Gallery ==