Consolidating requirements.

.gitignore

@@ -138,3 +138,5 @@ dmypy.json
 # Cython debug symbols
 cython_debug/
 
+# Secrets
+.creds*

README.md

@@ -1,3 +1,14 @@
 # garden
 
-Python project for building an indoor garden with the Setlock ladies.
+Python project for building an indoor garden with the Setlock ladies.
+
+## BCM Pin Assignments
+
+| BCM Number | Device | Function |
+|------------|--------|----------|
+| 4 | Green Pushbutton | Sequence Start |
+| 27 | Yellow Pushbutton | Lamp |
+| 13 | Blue Pushbutton | Water Pump |
+| 26 | Relay 1 | N.O. Pump |
+| 20 | Relay 2 | *Unassigned* |
+| 21 | Relay 3 | N.O. Lamp |

automatic/input.py

@@ -0,0 +1,33 @@
+#! env/bin/python3
+
+import RPi.GPIO as GPIO
+import time
+from datetime import datetime
+
+def get_pin_input():
+
+    # Pin Assignments
+    PB1_BCM = 4     # Green
+    PB2_BCM = 27    # Yellow
+    PB3_BCM = 13    # Blue
+    RELAY1_PIN = 26 # Water Pump
+    RELAY2_PIN = 20 # Unassigned
+    RELAY3_PIN = 21 # Lamp
+
+    # Get current time.
+    now = datetime.now()
+    hour = now.hour
+    minute = now.minute
+    
+    # Define alias variables for input devices.
+    inputs = { 
+        'green_button' : GPIO.input(PB1_BCM),
+        'yellow_button' : GPIO.input(PB2_BCM),
+        'blue_button' : GPIO.input(PB3_BCM),
+        'pump' : GPIO.input(RELAY1_PIN),
+        'lamp' : GPIO.input(RELAY3_PIN),
+        'hour' : hour,
+        'minute' : minute,
+    }
+
+    return inputs

automatic/output.py

@@ -0,0 +1,20 @@
+#! env/bin/python3
+
+import RPi.GPIO as GPIO
+import time
+from datetime import datetime
+
+def write_pin_output(outputs):
+
+    # Setup for Hardware
+    RELAY1_PIN = 26 # Water Pump
+    RELAY2_PIN = 20 # Unassigned
+    RELAY3_PIN = 21 # Lamp
+
+    # Write outputs.
+    if outputs['detect']:
+        time.sleep(1.0)
+
+    GPIO.output(RELAY1_PIN, outputs['pump'])
+    GPIO.output(RELAY2_PIN, False)
+    GPIO.output(RELAY3_PIN, outputs['lamp'])

automatic/routine.py

@@ -0,0 +1,69 @@
+#! env/bin/python3
+
+import RPi.GPIO as GPIO
+import time
+
+from input import get_pin_input
+from state_trans import check_state
+from output import write_pin_output
+
+if __name__ == "__main__":
+
+    GPIO.setmode(GPIO.BCM)
+    GPIO.setwarnings(False)
+
+    # Pin Assignments
+    PB1_BCM = 4     # Green
+    PB2_BCM = 27    # Yellow
+    PB3_BCM = 13    # Blue
+    RELAY1_PIN = 26 # Water Pump
+    RELAY2_PIN = 20 # Unassigned
+    RELAY3_PIN = 21 # Lamp
+
+    # Setup the Inputs to use the internal pull-down.
+    GPIO.setup(PB1_BCM, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
+    GPIO.setup(PB2_BCM, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
+    GPIO.setup(PB3_BCM, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
+
+    # Setup the Outputs.
+    GPIO.setup(RELAY1_PIN, GPIO.OUT)
+    GPIO.setup(RELAY2_PIN, GPIO.OUT)
+    GPIO.setup(RELAY3_PIN, GPIO.OUT)
+
+    try:
+
+        auto_mode = False
+
+        while True:
+
+            # Detect user input. 
+            inputs = get_pin_input()
+
+            # Activate auto mode if the Green PB is pressed.
+            if auto_mode or inputs['green_button'] ==  True:
+
+                inputs['mode'] = "AUTO"
+                auto_mode = True
+                
+            # Activate manual mode if the Yellow or Blue PB's are pressed.
+            if  not auto_mode or inputs['yellow_button'] ==  True or inputs['blue_button'] ==  True:
+
+                inputs['mode'] = "MANUAL"
+                auto_mode = False
+            
+            # Make any transitions based on mode and inputs.
+            outputs = check_state(inputs)
+
+            # Write the outputs which correspond to the desired state.
+            write_pin_output(outputs)
+
+            # Avoid maxxing out a single thread.
+            time.sleep(0.1)
+
+    # Cleanup on Exit.
+    finally:
+        GPIO.output(RELAY1_PIN, False)
+        GPIO.output(RELAY2_PIN, False)
+        GPIO.output(RELAY3_PIN, False)
+        GPIO.cleanup()
+

automatic/state_trans.py

@@ -0,0 +1,68 @@
+#! env/bin/python3
+
+import RPi.GPIO as GPIO
+import time
+from datetime import datetime
+
+def check_state(inputs):
+
+    # Define alias variables for input devices.
+    green_button = inputs['green_button']
+    yellow_button = inputs['yellow_button']
+    blue_button = inputs['blue_button']
+
+    # Define state variables for each of the output devices.
+    pump_state = inputs['pump']
+    lamp_state = inputs['lamp']
+
+    # Get mode and schedule information.
+    mode = inputs['mode']
+    hour = inputs['hour']
+    minute = inputs['minute']
+
+    # Determine state.
+
+    # Assume no change in state.
+    pump_out = pump_state
+    lamp_out = lamp_state
+
+    # Automatic mode.
+    if mode == "AUTO":
+
+        detect = False
+
+        if 6 < hour < 22:
+            lamp_out = True
+            pump_out = True
+        else:
+            lamp_out = False
+            pump_out = False
+
+    # Manual mode.
+    if mode == "MANUAL":
+
+        detect = False
+        
+        # Pump Flip-Flop
+        if not detect and blue_button and pump_state:
+            pump_out = False
+            detect = True
+        if not detect and blue_button and not pump_state:
+            pump_out = True
+            detect = True
+        # Lamp Flip-Flop
+        if not detect and yellow_button and lamp_state:
+            lamp_out = False
+            detect = True
+        if not detect and yellow_button and not lamp_state:
+            lamp_out = True
+            detect = True
+
+    # Define alias variables for input devices.
+    outputs = { 
+        'detect' : detect,
+        'pump' : pump_out,
+        'lamp' : lamp_out,
+    }
+
+    return outputs

db_tools/db_writer.py

@@ -0,0 +1,73 @@
+#! env/bin/python3
+
+# import the psycopg2 database adapter for PostgreSQL
+import psycopg2
+from psycopg2.extras import Json
+import json
+import sys
+
+def connect_db(db: str,host: str,user: str,passwd: str):
+    try:
+        # declare a new PostgreSQL connection object
+        conn = psycopg2.connect(
+            dbname = db,
+            user = user,
+            host = host,
+            password = passwd,
+            # attempt to connect for 3 seconds then raise exception
+            connect_timeout = 3
+        )
+
+    except (Exception, psycopg2.Error) as err:
+        #print ("\npsycopg2 connect error:", err)
+        conn = None
+    return conn
+
+def get_db_creds(file: str):
+    with open(file) as cred_file:
+        creds = json.load(cred_file)
+    return creds
+
+def insert_data(conn, data):
+    
+    # insert a new vendor into the vendors table
+    sql = """  
+    INSERT INTO
+        air(datetime, temperature, humidity) 
+    VALUES
+        (%s, %s, %s)
+    """
+    
+    try:
+        # open cursor on our db connection
+        cur = conn.cursor()
+
+        # execute the INSERT statement
+        data = (data["datetime"], data["temperature"], data["humidity"])
+        cur.execute(sql,data)
+
+        # commit the changes to the database
+        conn.commit()
+
+        # close communication with the database
+        cur.close()
+
+    except (Exception, psycopg2.DatabaseError) as error:
+        print(error)
+
+    finally:
+        if conn is not None:
+            conn.close()
+    
+if __name__ == "__main__":
+    data = {
+        "datetime": "2021-10-23 01:58:08.205911",
+        "temperature": "73.4",
+        "humidity": "49.2"
+    }
+
+    creds = get_db_creds("./.creds.json")
+
+    conn = connect_db(creds["db"], creds["host"], creds["user"], creds["passwd"])
+
+    insert_data(conn, data)

dht22/log.csv

@@ -0,0 +1,548 @@
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dht22/print_DHT22.py

@@ -0,0 +1,40 @@
+#!/usr/bin/env python3
+
+import RPi.GPIO as GPIO
+import adafruit_dht
+import time
+from datetime import datetime
+
+
+def get_sensor_data(dht22):
+    try:
+        temperature = 9./5. * dht22.temperature + 32.
+        humidity = dht22.humidity
+        return temperature, humidity
+    except RuntimeError as e:
+        print("Reading from DHT failure: ", e.args)
+        return None    
+
+if __name__ == "__main__":
+
+    # Setup for Hardware
+    DHT22_PIN = 4
+    dht_device = adafruit_dht.DHT22(4)
+    file = '/home/pi/code/garden/dht22/log.csv'
+    
+    with open(file,'a') as f:
+
+        try:
+            while True:
+                data = get_sensor_data(dht22=dht_device)
+                if data:
+                    temperature, humidity = get_sensor_data(dht22=dht_device)
+                    current_time = datetime.now().strftime("%D %H:%M:%S")
+                    print(f'{humidity:.2f}%    {temperature:.2f}degF')
+                    f.write(f'{current_time},{humidity:.2f},{temperature:.2f}\n') 
+                    time.sleep(14.9)
+                else:
+                    time.sleep(0.1)
+
+        finally:
+            GPIO.cleanup()

functional_decription.md

@@ -0,0 +1,28 @@
+# Functional Description - Garden Logic
+
+### Table of Contents
+1. Routines
+   1. Scan Inputs 
+   2. Collect Program State
+   3. Manipulate Program State
+   4. Write Outputs
+   5. Log to Database
+2. References
+
+
+## Routines
+
+### Scan Inputs 
+`./input/inputs.py`
+
+### Collect Program State
+`./states/state.py`
+
+### Manipulate Program State
+`./states/state.py`
+
+### Write Outputs
+`./output/outputs.py`
+
+### Log to Database
+`./logging/db.py`

manual/manual.py

@@ -0,0 +1,77 @@
+#! env/bin/python3
+
+import RPi.GPIO as GPIO
+import time
+
+if __name__ == "__main__":
+
+
+    # Setup for Hardware
+    PB1_BCM = 4     # Green
+    PB2_BCM = 27    # Yellow
+    PB3_BCM = 13    # Blue
+    RELAY1_PIN = 26 # Water Pump
+    RELAY2_PIN = 20 # Unassigned
+    RELAY3_PIN = 21 # Lamp
+
+    GPIO.setmode(GPIO.BCM)
+    GPIO.setwarnings(False)
+
+    # Setup the Inputs to use the internal pull-down.
+    GPIO.setup(PB1_BCM, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
+    GPIO.setup(PB2_BCM, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
+    GPIO.setup(PB3_BCM, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
+
+    # Setup the outputs to be initialized as OFF.
+    GPIO.setup(RELAY1_PIN, GPIO.OUT)
+    GPIO.output(RELAY1_PIN, False)
+    GPIO.setup(RELAY2_PIN, GPIO.OUT)
+    GPIO.output(RELAY2_PIN, False)
+    GPIO.setup(RELAY3_PIN, GPIO.OUT)
+    GPIO.output(RELAY3_PIN, False)
+
+    # Define alias variables for input devices.
+    green_button = False
+    yellow_button = False
+    blue_button = False
+
+    # Define state variables for each of the output devices.
+    pump_state = False
+    lamp_state = False
+
+    # Begin detected presses.
+    try:
+        while True:
+
+            # Detect inputs.
+            detect = False
+            green_button = GPIO.input(PB1_BCM)
+            yellow_button = GPIO.input(PB2_BCM)
+            blue_button = GPIO.input(PB3_BCM)
+
+            # Determine state.
+            if not detect and blue_button and pump_state:
+                pump_state = False
+                detect = True
+            if not detect and blue_button and not pump_state:
+                pump_state = True
+                detect = True
+            # Lamp
+            if not detect and yellow_button and lamp_state:
+                lamp_state = False
+                detect = True
+            if not detect and yellow_button and not lamp_state:
+                lamp_state = True
+                detect = True
+
+            # Write outputs.
+            if detect:
+                time.sleep(1.0)
+                GPIO.output(RELAY1_PIN, pump_state)
+                GPIO.output(RELAY3_PIN, lamp_state)
+
+            # Avoid running a single thread maxxed out.
+            time.sleep(0.1)
+
+    finally:
+        GPIO.cleanup()

pb/pb.py

@@ -0,0 +1,40 @@
+#! env/bin/python3
+
+import RPi.GPIO as GPIO
+import time
+
+if __name__ == "__main__":
+
+    # Setup for Hardware
+    PB1_BCM = 4     # Green
+    PB2_BCM = 27    # Yellow
+    PB3_BCM = 13    # Blue
+
+    GPIO.setmode(GPIO.BCM)
+    GPIO.setwarnings(False)
+
+    # Use the internal pull-down.
+    GPIO.setup(PB1_BCM, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
+    GPIO.setup(PB2_BCM, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
+    GPIO.setup(PB3_BCM, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
+
+    # Begin detected presses.
+    i = 0
+    try:
+        while True:
+            # Green
+            if GPIO.input(PB1_BCM):
+                i += 1
+                print(f"Hi Gabby! Did you push the GREEN button? i = {i}")
+            # Yellow
+            if GPIO.input(PB2_BCM):
+                i += 1
+                print(f"Hi Gabby! Did you push the YELLOW button? i = {i}")
+            # Blue
+            if GPIO.input(PB3_BCM):
+                i += 1
+                print(f"Hi Gabby! Did you push the BLUE button? i = {i}")
+            time.sleep(0.1)
+
+    finally:
+        GPIO.cleanup()

relay/relay.py

@@ -0,0 +1,37 @@
+#! env/bin/python3
+
+import RPi.GPIO as GPIO
+import time
+
+if __name__ == "__main__":
+
+    # Setup for Hardware
+    RELAY1_PIN = 26 
+    RELAY2_PIN = 20
+    RELAY3_PIN = 21
+
+    GPIO.setmode(GPIO.BCM)
+    GPIO.setwarnings(False)
+
+    # Setup the output pin; initialize OFF.
+    GPIO.setup(RELAY1_PIN, GPIO.OUT)
+    GPIO.output(RELAY1_PIN, False)
+    GPIO.setup(RELAY2_PIN, GPIO.OUT)
+    GPIO.output(RELAY2_PIN, False)
+    GPIO.setup(RELAY3_PIN, GPIO.OUT)
+    GPIO.output(RELAY3_PIN, False)
+
+
+    # Short toggle.
+    i = 0
+    try:
+        time.sleep(10.0)
+        GPIO.output(RELAY1_PIN, True)
+        GPIO.output(RELAY3_PIN, True)
+        time.sleep(60.0)
+        GPIO.output(RELAY1_PIN, False)
+        GPIO.output(RELAY3_PIN, False)
+        time.sleep(1.0)
+        
+    finally:
+        GPIO.cleanup()

requirements.txt

@@ -0,0 +1,13 @@
+black==21.9b0
+click==8.0.3
+importlib-metadata==4.8.1
+mypy-extensions==0.4.3
+pathspec==0.9.0
+pkg-resources==0.0.0
+platformdirs==2.4.0
+regex==2021.10.8
+RPi.GPIO==0.7.0
+tomli==1.2.1
+typed-ast==1.4.3
+typing-extensions==3.10.0.2
+zipp==3.6.0