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1. ESP32-WROOM-32 (U1)
2. BMP280 (S1)
3. TSW-103-07-G-S (J1)

1. GPIO Pins: Generally, ESP32 GPIO pins do not require external pull-up or pull-down resistors, as they can be configured internally.
2. EN (Enable): This pin needs to be pulled high for the module to operate. A pull-up resistor is required here if it's not already provided in your design.
3. IO0: For boot mode selection, this pin typically requires a pull-down resistor to keep it in flash mode (normal operation).

1. CSB Pin: The Chip Select pin is usually connected to the appropriate microcontroller pin. If using I2C mode, this pin should be tied to VDDIO or GND to select the I2C address.
2. SDO (I2C) Pin: This determines the least significant bit of the I2C address. Should be pulled to VDDIO or GND.
3. Unused Pins: Generally, other pins like VDD, VDDIO, GND, SDA, and SCL (I2C lines) do not need external pull-up resistors as internal pull-ups are often provided for I2C communication.

1. Net 1 (Ground)
   • No resistors needed.
2. Net 2
   • Connects $U1:IO23$ to $J1:Pin_1$
   • Assuming this is a GPIO pin, no external resistors needed.
3. Net 3
   • Connects $U1:IO19$ to $J1:Pin_2$
   • Assuming this is a GPIO pin, no external resistors needed.
4. Net 4
   • Connects $U1:IO18$ to $J1:Pin_3$
   • Assuming this is a GPIO pin, no external resistors needed.

1. EN (Enable): Ensure an external pull-up resistor (~10kΩ) is used if not provided internally.
2. IO0 (Flash Mode Selection): Ensure an external pull-down resistor (~10kΩ) if the GPIO is not being used.

1. CSB: Tie to VDDIO or GND to select the I2C address.
2. SDO: Pull to VDDIO or GND to set I2C address.

copilot

1. ESP32-WROOM-32
   • EN Pin: Requires an RC delay circuit as recommended in the datasheet$$\text{EN} \text{recommended} \text{setting} \text{for} \text{RC} \text{delay} \text{circuit} \text{is} \text{usually} \text{R} = 10\text{k}\Omega \text{and} \text{C} = 1uF.}{\text{a281f1d2-2d95-52df-bdc9-c6099177b7d1}}.
2. BMP280
   • The BMP280 datasheet does not specify a dedicated reset/enable pin, so no pull-up or pull-down is required.

1. Add External Pull-up for ESP32-WROOM-32 EN Pin:
   • Implement an RC delay circuit using a 10 k$\Omega$ resistor and a 1 µF capacitor as recommended [1].

copilot

• Connect C1 and C2 (both 0.1uF capacitors) between VDD and GND near the ESP32 to filter high-frequency noise.
• Use C3 (1uF capacitor) also between VDD and GND for additional power smoothing.
• Use C4 and C5 (both 10uF capacitors) between VDD and GND for bulk decoupling.

1. Connect C1:P1 to U1:VDD.
2. Connect C1:P2 to U1:GND.
3. Connect C2:P1 to U1:VDD.
4. Connect C2:P2 to U1:GND.
5. Connect C3:P1 to U1:VDD.
6. Connect C3:P2 to U1:GND.
7. Connect C4:P1 to U1:VDD.
8. Connect C4:P2 to U1:GND.
9. Connect C5:P1 to U1:VDD.
10. Connect C5:P2 to U1:GND.

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• Power Net: VDD33
• Voltage of Power Net: 3.3V
• Decoupling Capacitors:
  • C3: 1 µF, 10V
  • C9: 0.1 µF, 10V
  • C10: 0.1 µF, 10V
  • C11: 10 µF, 10V
  • C12: 10 µF, 10V

• Capacitor C3:
  • Voltage Rating: 10V
  • Value: 1 µF
  • Status: $\text{[OK]}$
• Capacitor C9:
  • Voltage Rating: 10V
  • Value: 0.1 µF
  • Status: $\text{[OK]}$
• Capacitor C10:
  • Voltage Rating: 10V
  • Value: 0.1 µF
  • Status: $\text{[OK]}$
• Capacitor C11:
  • Voltage Rating: 10V
  • Value: 10 µF
  • Status: $\text{[OK]}$
• Capacitor C12:
  • Voltage Rating: 10V
  • Value: 10 µF
  • Status: $\text{[OK]}$

Markdown
| IC Designator      | Power Net | Voltage of Power Net | Decoupling Capacitor | Capacitor Value | Capacitor Voltage Rating | Status |
|--------------------|-----------|----------------------|-----------------------|-----------------|--------------------------|--------|
| ESP32-WROOM-32 (U1)| VDD33     | 3.3V                 | C3                    | 1 µF            | 10V                      | $$\text{[OK]}$$   |
| ESP32-WROOM-32 (U1)| VDD33     | 3.3V                 | C9                    | 0.1 µF          | 10V                      | $$\text{[OK]}$$   |
| ESP32-WROOM-32 (U1)| VDD33     | 3.3V                 | C10                   | 0.1 µF          | 10V                      | $$\text{[OK]}$$   |
| ESP32-WROOM-32 (U1)| VDD33     | 3.3V                 | C11                   | 10 µF           | 10V                      | $$\text{[OK]}$$   |
| ESP32-WROOM-32 (U1)| VDD33     | 3.3V                 | C12                   | 10 µF           | 10V                      | $$\text{[OK]}$$   |