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explain this project.
orlandonull0

orlandonull0

@copilot explain this project.
1y

copilot

Sure! This project is for an environmental exposure risk measuring device that combines an ESP32 microcontroller, a UV sensor, and a CO2 gas sensor to monitor environmental conditions. Its power supply system includes a voltage booster and a solar panel lithium battery charger with MPPT.
Here's a breakdown of the main components and their roles:
  1. ESP32 Microcontroller (ESP32-WROOM-32):
    • Acts as the brain of the system, handling data processing and communication.
    • Connected to various sensors and peripherals.
  2. Ultraviolet Light (UV) Sensor Module (VEML6075):
    • Measures UV radiation levels.
  3. CO2 Gas Sensor Module (MH-Z19):
    • Measures CO2 concentration in the environment.
  4. Voltage Booster (MT3608):
    • Boosts voltage to ensure stable operation of the components.
  5. Solar Panel Lithium Battery Charger with MPPT (CN3791):
    • Charges the lithium battery using solar power with maximum power point tracking.
  6. AP2112K-3.3TRG1 Voltage Regulator (AP2112K-3.3TRG1):
    • Provides a steady 3.3V output which powers the ESP32 and other 3.3V components.
  7. Various Connectors, Resistors, and Capacitors:
    • Used for interfacing components and ensuring stable operation.
Key Connections:
  • Power Supplies:
    • Connect U1:VINU1:VIN to VBAT:P1VBAT:P1.
    • Connect U1:VOUTU1:VOUT to U2:VDDU2:VDD.
  • Ground:
    • Ground pins of various components (U1:GNDU1:GND, U2:GNDU2:GND, sensors) are tied together to a common ground.
  • Communication:
    • ESP32RX(U2:IO3)ESP32 RX (U2:IO3) and TX(U2:IO1)TX (U2:IO1) to UART0 signals (UART0RXUART0_RX and UART0TXUART0_TX).
    • I2C connections (ESP32/I2CSCLESP32/I2C_SCL, ESP32/I2CSDAESP32/I2C_SDA) for sensor data.
Typical Use Case:
  1. Power Up:
    • The solar panel charges the lithium battery, and the voltage booster ensures that there is a steady voltage supply.
  2. Environmental Sensing:
    • The ESP32 reads data from the UV and CO2 sensors periodically.
  3. Data Processing and Transmission:
    • The ESP32 processes the sensor data and can send it to a server or display through WiFi/Bluetooth.
Assumptions:
  1. Power Requirements:
    • Assuming typical voltage and current consumption specifications of ESP32 and sensors.
  2. Environmental Conditions:
    • Assuming the sensor modules can operate under the expected environmental conditions.
Feel free to let me know if you need more detailed information on any specific part of the project!
1y
create a detailed step by step plan table for this project to verify its functio...
orlandonull0

orlandonull0

@copilot create a detailed step by step plan table for this project to verify its functionality.
1y

copilot

Sure! Here is a detailed step-by-step plan for verifying the functionality of your environmental exposure risk measuring device project. This plan will include checking the connections, testing individual components, and finally conducting an end-to-end test.

Table

StepDescriptionAction/Verification
1Check Schematic ConnectionsVerify that all nets are correctly connected as per design. Ensure each component designator is correctly placed and connected.
2PCB Layout ReviewCheck the PCB layout to ensure traces are correctly routed, with adequate spacing and proper placement of components.
3Power Supply Verification- Connect the J2J2 (Power Input) to a power source. - Measure the output voltage at U1:VOUTU1:VOUT to ensure it is 3.3V.
4Solar Panel Charger Test- Connect a solar panel to J4J4. - Measure the charging current and voltage at SL2:BATSL2:BAT while exposed to light.
5Voltage Booster Test- Ensure R1R1 is connected to BOOSTENBOOST_EN to enable the booster. - Measure the output voltage at VBOOSTVBOOST to ensure it matches the boosted value.
6ESP32 Power-On Test- Ensure power is supplied to the ESP32−WROOM−32ESP32-WROOM-32, and U2:ENU2:EN is connected to a high signal. - Verify that the status LED on the ESP32 lights up.
7UART Communication Check- Connect the ESP32 to a PC using J6J6. - Open a serial monitor on the PC and verify communication using UART0TXUART0_TX and UART0RXUART0_RX.
8CO2 Sensor Test- Connect the MH-Z19 CO2 Sensor to the ESP32 via the appropriate pins using J3J3. - Verify the CO2 readings are received on the ESP32.
9UV Sensor Test- Connect the VEML6075 UV Sensor to the ESP32 using the I2C bus ESP32/I2CSCLESP32/I2C_SCL and ESP32/I2CSDAESP32/I2C_SDA. - Verify UV sensor readings are received correctly.
10Functional Software Test- Upload test firmware to the ESP32−WROOM−32ESP32-WROOM-32 to read sensor values and print them via the serial monitor. - Verify that sensor readings for CO2 and UV are displayed correctly.
11System Integration Test- Assemble all components and power up the device. - Verify the system reads and processes data from both the UV and CO2 sensors. - Ensure the data is communicated to the user interface (e.g., through the serial monitor or a connected display).
12Battery Operation Test- Test the system with the lithium battery connected via VBATVBAT. - Verify the device operates correctly using battery power and switches to solar charging when available.
13Field Test- Deploy the device in a real environment. - Monitor performance over several days to ensure it operates stably and measures environmental CO2 and UV exposure accurately.
Following this plan will help ensure each component and subsystem in your project is tested and verified, leading to a reliable and functional design.
1y
3
@copilot, develop an FMEA (Failure Mode and Effects Analysis) report in a table ...
orlandonull0

orlandonull0

@copilot, develop an FMEA (Failure Mode and Effects Analysis) report in a table format that analyzes the systems schematic, each unique component specification, and operational parameters. It should identify critical failure modes, assess their impact, and recommend mitigation actions based on severity, occurrence probability, and detectability. Include columns such as: process step, potential failure mode, potential failure effect, S, O, D, RPN, Action Recommended, and any other you see fit.
1y

copilot

Below is an FMEA (Failure Mode and Effects Analysis) table for your environmental exposure risk measuring device project. To quantify the severity (S), occurrence (O), and detectability (D), you may use a 1-10 scale, where:
  • Severity (S): 1 = No effect, 10 = Catastrophic.
  • Occurrence (O): 1 = Very unlikely, 10 = Almost certain.
  • Detectability (D): 1 = Easily detectable, 10 = Undetectable.
The Risk Priority Number (RPN) is calculated as $ RPN = S \times O \times D $.

FMEA Table

Process StepPotential Failure ModePotential Failure EffectSODRPNAction Recommended
Power SupplyVoltage drop or spikeDevice malfunction or damage945180Use a voltage regulator and add filtering capacitors. Test power supply stability.
MT3608 Voltage BoosterOverheating or failureInsufficient voltage, device may stop working836144Ensure heat dissipation, possibly add a heatsink.
Solar Charger (CN3791)Poor solar charge efficiencyBattery undercharged, device downtime754140Use an appropriate MPPT algorithm. Regularly monitor battery health.
ESP32 ESP32-WROOM-32WiFi/Bluetooth unresponsiveLoss of data transmission636108Implement watchdog timers and retries in firmware.
CO2 SensorCalibration driftIncorrect CO2 readings745140Regular calibration and validation against standards.
UV SensorSensitivity deteriorationIncorrect UV exposure measurements63590Ensure proper shielding from extreme UV exposure. Regularly test sensor accuracy.
BatteryOver-dischargeBattery failure, system power loss935135Use a battery management system (BMS) to prevent over-discharge.
Switches SW1, SW2Mechanical failureDevice cannot be powered on/off52440Use robust and durable switches. Perform lifecycle tests.
Connectors J1, J2, J3Poor contact or disconnectionLoss of power or signal835120Use reliable connectors, and design for proper strain relief.
LED Indicator LED1LED failureLoss of visual status indication32318Use LEDs with long lifetimes and proper drivers. Periodic testing.
Resistors R1, R3, R4Value driftIncorrect circuit behavior42324Use precision resistors and ensure good thermal management. Test for component quality.
Capacitors C1, C2Capacitance driftPower stability issues53345Use high-quality capacitors and derate their voltage significantly. Periodic testing.
Action Plan Summary:
  1. Power Supply: Add voltage stabilizers and filtering capacitors.
  2. MT3608: Improve heat dissipation.
  3. Solar Charger: Ensure efficient MPPT algorithm and regular battery health checks.
  4. ESP32 Firmware: Use watchdog timers and retry mechanisms.
  5. CO2 Sensor and UV Sensor: Regular calibration and performance testing.
  6. Battery Management: Implement BMS to prevent over-discharge.
  7. Switches: Use durable switches and perform lifecycle tests.
  8. Connectors: Use high-reliability connectors and design for proper strain relief.
  9. LED Indicators: Use long-life LEDs and periodically test them.
  10. Passive Components (Resistors, Capacitors): Use precision components, ensure thermal management, and perform quality testing.
Feel free to tailor the recommendations according to the specific details and criticality of your project. The values assigned to S, O, and D are initial estimates and should be refined based on practical experience and testing.
1y
4
  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
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    20.5M
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    Net Portal
    Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
    jharwinbarrozo
    43.0M
  • Power Net Portal
    Power Net Portal
    Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
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  • Generic Resistor
    Generic Resistor
    A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • Generic Capacitor
    Generic Capacitor
    A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibrary
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    1.5M
  • Generic Inductor
    Generic Inductor
    A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
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  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
    natarius
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  • 875105359001
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  • CTL1206FYW1T
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Inspect

ENVIRONMENTAL EXPOSURE RISK METER

ENVIRONMENTAL EXPOSURE RISK METER
Description

Created
Last updated by orlandonull0
1 Contributor(s)
orlandonull0

Controls

Properties

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DistributorQty 1
Arrow$0.41–$0.79
Digi-Key$1.34–$9.55
LCSC$6.20–$6.34
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Verical$0.33–$0.67

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