# Simulador De Cir ## Description Compact ESP32-WROVER Audio Board with microSD and DFPlayer Mini ## Project Details - **Owner:** mickguillen - **Created:** 10/27/2023 - **Last Updated:** 10/18/2025 - **Visibility:** Public - **System Architecture:** ```mermaid graph LR %% Power Section 5V_IN(5V Input) --> LDO[AMS1117 3.3V LDO] LDO --> V3V3(3.3V Rail) %% Modules ESP32[ESP32-WROVER] ---|3.3V| V3V3 DFPlayer[DFPlayer Mini] ---|3.3V| V3V3 %% Data Interfaces ESP32 -- "UART TX/RX" --> DFPlayer DFPlayer -- BUSY --> ESP32 %% Audio Output DFPlayer -- SPK+/- --> Speaker[4–8Ω Speaker] %% microSD Interface ESP32 -- SPI --> microSD[MicroSD Slot] ``` - **Stars:** 1 ## Key Components ### ESP32 — [ESP32-DEVKIT-V1](https://www.flux.ai/jharwinbarrozo/esp32-devkit-v1~7xd.md) - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf - Manufacturer Part Number: ESP32-DEVKIT-V1 - Part Type: Module - Symbol Style: Parametric - Manufacturer Name: Espressif Systems **Pins:** - 3V3 [pin 1] - D12 [pin 27] - D13 [pin 28] - D14 [pin 26] - D15 [pin 3] - D18 [pin 9] - D19 [pin 10] - D2 [pin 4] - D21 [pin 11] - D22 [pin 14] - D23 [pin 15] - D25 [pin 23] - D26 [pin 24] - D27 [pin 25] - D32 [pin 21] - D33 [pin 22] - D34 [pin 19] - D35 [pin 20] - D4 [pin 5] - D5 [pin 8] - EN [pin 16] - GND [pin 2] - GND_1 [pin 29] - RX0 [pin 12] - RX2 [pin 6] - TX0 [pin 13] - TX2 [pin 7] - VIN [pin 30] - VN [pin 18] - VP [pin 17] ### LIGHTS — [Pin Header 01x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x04-254mm-vertical~l97.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] ### MINIPLAYER — [DFR0299](https://www.flux.ai/adrian95/dfr0299~dmv.md) - Part Type: Development Board - Manufacturer Name: DFRobot - Datasheet URL: https://raw.githubusercontent.com/Arduinolibrary/DFPlayer_Mini_mp3/master/DFPlayer%20Mini%20Manual.pdf - Role: Audio Module - Manufacturer Part Number: DFR0299 - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: DFPlayer Mini footprint **Pins:** - ADKEY1 [pin 12] - ADKEY2 [pin 13] - BUSY [pin 16] - DAC_L [pin 5] - DAC_R [pin 4] - GND [pin 10] - GND [pin 7] - IO1 [pin 9] - IO2 [pin 11] - RX [pin 2] - SPK1 [pin 6] - SPK2 [pin 8] - TX [pin 3] - USB- [pin 15] - USB+ [pin 14] - VCC [pin 1] ### Source — [Pin Header 01x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x04-254mm-vertical~l97.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] ### SPEAKER — [Pin Header 01x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x04-254mm-vertical~l97.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/mickguillen/simulador-de-cir~bk](https://www.flux.ai/mickguillen/simulador-de-cir~bk).* --- *Generated from [https://www.flux.ai/mickguillen/simulador-de-cir~bk](https://www.flux.ai/mickguillen/simulador-de-cir~bk)*