Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an ESP32 microcontroller and an INMP441 microphone. The ESP32 is used to interface with the microphone, providing power and handling data communication.

Component List

INMP441 FRONT MIC

• Description: Digital MEMS microphone
• Pins: L/R, WS, SCK, SD, VDD, GND
• Purpose in Circuit: Captures audio signals and sends digital data to the microcontroller.

ESP32 (30 pin)

• Description: Wi-Fi and Bluetooth microcontroller
• Pins: EN, VP, VN, D34, D35, D32, D33, D25, D26, D27, D14, D12, D13, GND, Vin, D23, D22, TX0, RX0, D21, D19, D18, D5, TX2, RX2, D4, D2, D15, 3V3
• Purpose in Circuit: Processes data from the microphone and can transmit data wirelessly.

Wiring Details

INMP441 FRONT MIC

• L/R: Connected to GND of ESP32
• WS: Connected to D25 of ESP32
• SCK: Connected to D32 of ESP32
• SD: Connected to D33 of ESP32
• VDD: Connected to 3V3 of ESP32
• GND: Connected to GND of ESP32

ESP32 (30 pin)

• GND: Connected to L/R and GND of INMP441 FRONT MIC
• D25: Connected to WS of INMP441 FRONT MIC
• D32: Connected to SCK of INMP441 FRONT MIC
• D33: Connected to SD of INMP441 FRONT MIC
• 3V3: Connected to VDD of INMP441 FRONT MIC

Code

There is no code provided for this circuit.

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This document provides a comprehensive overview of the components and their connections within the circuit. The ESP32 microcontroller interfaces with the INMP441 microphone, providing the necessary power and handling the data communication.