copilot

1. Identify all components: Extract and list all the components from the project data provided.
2. Identify the supply voltage $V$: Determine the voltage(s) used in the project. As mentioned, the project operates at 3.3V.
3. Current Consumption for Each Component:
   • For ICs and complex components, we'll use the quiescent or operating current provided in the datasheets.
   • For resistors and passive components, we can assume negligible power consumption unless they are directly involved in the power dissipation.
4. Calculate power consumption:
   • For each component, power consumption is calculated as:
     $$P = V \times I$$
   • Sum up the power consumption of all components to get the total power consumption.
5. Create visualization using matplotlib to show the power consumption distribution.

collinsemasi

copilot

Python
import matplotlib.pyplot as plt

# Define the supply voltage
V = 3.3

# Component power consumption data (some hypothetical values for example purposes)
components = {
    'RP2040': {'MPN': 'RP2040', 'current_ma': 25}, # Example consumption, need real value from datasheet
    'LoRa-E5': {'MPN': '317990687', 'current_ma': 50}, # Example consumption, need real value from datasheet
    'LED1': {'MPN': 'NCD0603C1', 'current_ma': 20},
    'LED2': {'MPN': 'NCD0603R1', 'current_ma': 20},
    'SD Card': {'MPN': '114-00841-68', 'current_ma': 10}, # Example consumption, need real value from datasheet
    'Flash Memory': {'MPN': 'W25Q128JVSIQ', 'current_ma': 1}, # Example consumption, need real value from datasheet
    'Microphone': {'MPN': 'SPH0645LM4H-B', 'current_ma': 0.6}, # Example consumption, need real value from datasheet
    'Temp/Humidity Sensor': {'MPN': 'DHT22', 'current_ma': 1.5}, # Example consumption, assume DHT22
    'Voltage Regulator': {'MPN': 'SY6280A AC', 'current_ma': 1} # Example consumption, need real value from datasheet
}

# Calculate power consumption for each component
for comp in components:
    current_a = components[comp]['current_ma'] / 1000  # convert mA to A
    power_mw = V * current_a * 1000  # power in mW
    components[comp]['power_mw'] = power_mw

# Create lists for plotting
labels = list(components.keys())
sizes = [components[comp]['power_mw'] for comp in components]

# Plotting
fig, ax = plt.subplots(1, 2, figsize=(14, 7))

# Donut chart
ax[0].pie(sizes, labels=labels, autopct='%1.1f%%', startangle=140, pctdistance=0.85, wedgeprops=dict(width=0.3))
ax[0].set_title('Power Consumption Distribution (Donut Chart)')

# Bar graph
ax[1].bar(labels, sizes, color='skyblue')
ax[1].set_ylabel('Power Consumption (mW)')
ax[1].set_title('Power Consumption by Component')
ax[1].set_xticklabels(labels, rotation=45, ha='right')

plt.tight_layout()
plt.show()

# Return calculated data for verification
components

Image

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copilot

Note: The datasheet for NCD0603C1 is not available, but we will use similar values as NCD0603R1 due to the same manufacturer and similar characteristics.

• For D4: R11 has a resistance value of 1.5kΩ
• For D5: R19 has a resistance value of 1.5kΩ

• D4 (NCD0603R1): The current through the LED is 867uA, which is much lower than the forward current of 20mA specified in the datasheet.
• D5 (NCD0603C1): The current through the LED is 867uA, which is also much lower than the forward current of 20mA specified.

copilot

• $V_{\text{source}}$ is the supply voltage (+3.3V in this case)
• $V_f$ is the forward voltage of the LED (2.0V for both D4 and D5)
• $I$ is the desired current (20mA)

Python
# Constants
V_source = 3.3  # Supply voltage in volts
V_f = 2.0       # Forward voltage in volts
I = 20e-3       # Desired current in amperes (20mA)

# Calculate the current limiting resistor
R = (V_source - V_f) / I
R

Python
# Constants
V_source = 3.3  # Supply voltage in volts
V_f = 2.0       # Forward voltage in volts
I = 20e-3       # Desired current in amperes (20mA)

# Calculate the current limiting resistor
R = (V_source - V_f) / I
R

copilot

1. Identify Components: I'll go through the project details to identify all the components.
2. Supply Voltage: I'll identify the supply voltage used in the project.
3. Current Consumption:
   • Datasheets for active components: ICs, transistors, LEDs.
   • Calculate current for passive components using Ohm's Law.
4. Calculate Power Consumption:
   • Power consumption $P = V \times I$
5. Visualize using Matplotlib: Create a donut chart to display the power consumption of major components.

Python
import matplotlib.pyplot as plt

# Defining the components
components = {
    "RP2040": {"voltage": 3.3, "current": 100e-3},  # Assuming average operating current
    "LoRa-E5": {"voltage": 3.3, "current": 50e-3},  # Operation current considering max 10dBm transmission
    "SPH0645LM4H-B": {"voltage": 3.3, "current": 600e-6},  # Data from project
    "W25Q128JVSIQ": {"voltage": 3.3, "current": 25e-6},  # Typical standby current
    "RT8059GJ5": {"voltage": 3.3, "current": 100e-6},  # Assumption
    "CN3063": {"voltage": 3.7, "current": 1e-3},  # Typical current during operation
    "LED (Green)": {"voltage": 3.3, "current": 20e-3},  # Typical emission current
    "LED (Red)": {"voltage": 3.3, "current": 20e-3},  # Typical emission current
}

# Calculate power consumption for each component
power_consumption = {k: v['voltage'] * v['current'] for k, v in components.items()}

# Calculate total power consumption
total_power = sum(power_consumption.values())

# Create percentages for the donut chart
power_percentage = {k: (v / total_power) * 100 for k, v in power_consumption.items()}

# Plotting the donut chart
fig, ax = plt.subplots(figsize=(10, 7))
wedges, texts, autotexts = ax.pie(power_percentage.values(), labels=power_percentage.keys(), autopct='%1.1f%%', startangle=140, pctdistance=0.85)
centre_circle = plt.Circle((0,0),0.70,fc='white')
fig.gca().add_artist(centre_circle)
ax.axis('equal')

plt.title("Power Consumption Distribution of AvocAudio Components")
plt.show()

Image

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• RP2040: 3.3V * 100mA = 330mW
• LoRa-E5: 3.3V * 50mA = 165mW
• SPH0645LM4H-B: 3.3V * 600uA = 1.98mW
• W25Q128JVSIQ: 3.3V * 25uA = 0.0825mW
• RT8059GJ5: 3.3V * 100uA = 0.33mW
• CN3063: 3.7V * 1mA = 3.7mW
• LED (Green): 3.3V * 20mA = 66mW
• LED (Red): 3.3V * 20mA = 66mW

• RP2040: 52.1%
• LoRa-E5: 26.1%
• LEDs (Green and Red): 10.4% each
• Other components account for minor percentages.