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ESP32-S3-WROOM-1 Reference Design
Controls
Properties
Availability & Pricing
| Distributor | Qty 1 | |
|---|---|---|
| Arrow | $0.00 | |
| Digi-Key | $0.00–$0.10 | |
| LCSC | $0.01 | |
| Mouser | $0.10 | |
| Verical | $0.00–$0.01 | |
Assets
id=ESP32-S3-WROOM-1 Reference Design
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darkwolf7980
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Power Supply:
- There is a voltage component with the designator V1, but there are no connections or descriptions about how it supplies power to the ESP32-S3-WROOM-1 or other components.
- Add a voltage regulator if needed, ensuring it can supply the necessary voltages (typically 3.3V for ESP32-S3-WROOM-1).
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ESP32-S3-WROOM-1 Connections:
- Ensure connections for essential pins such as VCC (3.3V), GND, EN (Enable), BOOT (Flash button), RX, TX (for UART), etc.
- You can refer to the datasheet for the specific pinout.
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LEDs and Buttons:
- Connect the three LEDs properly, considering current-limiting resistors.
- Ensure that EN and BOOT buttons are correctly routed to the ESP32-S3-WROOM-1 with appropriate pull-up/pull-down resistors.
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USB-C for Firmware:
- Make sure the USB-C port connections are defined correctly, including D+/D- for USB data lines and VBUS for power.
- Add an appropriate USB to UART bridge (e.g., CP2102 or FTDI chip).
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IO Connectors:
- Ensure that the connectors are correctly defined and routed to the appropriate IO pins on the ESP32-S3-WROOM-1.
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Decoupling Capacitors:
- Add decoupling capacitors near the power pins of the ESP32-S3-WROOM-1.
Initial Wiring Suggestions Power Connections:- Connect V1:ANODE to a 5V input if V1 is a 5V voltage source.
- Add a voltage regulator (e.g., AMS1117-3.3) to convert 5V to 3.3V.
- Connect V1:CATHODE to the ground of the board.
Essential ESP32-S3-WROOM-1 Connections:- Connect the 3.3V output of the regulator to the 3.3V pin of ESP32.
- Connect the ground of the regulator to the GND pin of ESP32.
- Connect a 100nF decoupling capacitor between 3.3V pin and GND close to the ESP32.
- Connect a 10kΩ resistor from EN pin to 3.3V.
- Connect a push button from EN pin to GND (Reset Button).
- Connect a 10kΩ resistor from IO0 (BOOT button) to 3.3V.
- Connect a push button from IO0 to GND (BOOT Button).
- Connect the USB-UART bridge TX to ESP32 RX pin and UART bridge RX to ESP32 TX pin.
LED Connections: