# ESP32 Music Player Reference Design ## Description This project comprises a design for an ESP32 based Music Player. It consists of components like ESP32-WROOM-32E for RF/WIFI/MCU functionalities, PCM5102 for audio processing, CH340C for USB to UART communication, and acts as a robust and efficient system for music playback operations. Various supporting components such as capacitors, resistors, LEDs, buttons, etc., further enhance the performance. #referenceDesign #project #ESP32 #ESP32WROOM #RF #WIFI #MCU #music #MP3 #player #referenceDesign #simple-embedded #espressif #reference-design #polygon ## Project Details - **Owner:** vasy_skral - **Created:** 11/12/2024 - **Last Updated:** 3/5/2026 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ - **Stars:** 3 - **Forks:** 4 - **Copies:** 1 ## Key Components ### BAT1 — [Battery Holder 1 Cell SMD](https://www.flux.ai/jharwinbarrozo/battery-holder-smd-1-cell-18650~wj1.md) - Datasheet URL: https://www.keyelco.com/userAssets/file/M65p27.pdf - Manufacturer Name: Keystone Electronics - Voltage: 4.2V - Manufacturer Part Number: 1042 **Pins:** - NEGATIVE - POSITIVE ### BOOT — [PTS815](https://www.flux.ai/vasy_skral/pts815~6b.md) - Manufacturer Name: C&K - Part Type: Switch - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] ### CHG — [LED-0603-Template](https://www.flux.ai/vasy_skral/led-0603-template~ye5.md) - Part Type: LED - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### D1 — [1N5819HW-7-F](https://www.flux.ai/jecstronic/1n5819hw-7-f~x5v.md) - Datasheet URL: https://www.diodes.com/assets/Datasheets/ds30217.pdf - Manufacturer Name: Diodes Incorporated - Manufacturer Part Number: 1N5819HW-7-F - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Diode **Pins:** - A [pin 2] - K [pin 1] ### D2 — [WE-TVS-82400102](https://www.flux.ai/vasy_skral/we-tvs-82400102~xt.md) - Manufacturer Name: Würth Elektronik - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://katalog.we-online.de/pbs/datasheet/82400102.pdf - Manufacturer Part Number: 82400102 - Part Type: Protection **Pins:** - GND [pin 2] - IO1 [pin 6] - IO1 [pin 1] - IO2 [pin 4] - IO2 [pin 3] - VDD [pin 5] ### FB1 — [MH2029-300Y](https://www.flux.ai/vasy_skral/mh2029-300y~a4.md) - Part Type: Ferrite Bead - Manufacturer Name: Bourns Inc. - Manufacturer Part Number: MH2029-300Y - Datasheet URL: https://www.bourns.com/docs/Product-Datasheets/mh.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] ### FB2 — [MH2029-300Y](https://www.flux.ai/vasy_skral/mh2029-300y~a4.md) - Datasheet URL: https://www.bourns.com/docs/Product-Datasheets/mh.pdf - Manufacturer Part Number: MH2029-300Y - Part Type: Ferrite Bead - Manufacturer Name: Bourns Inc. **Pins:** - 1 [pin 1] - 2 [pin 2] ### FORWARD — [MX1A-11NW](https://www.flux.ai/vasy_skral/mx1a-11nw~gf0.md) - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Cherry%20PDFs/MX%20Series.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: MX1A-11NW - Manufacturer Name: Cherry Americas LLC - Part Type: Switch **Pins:** - 1 [pin 1] - 2 [pin 2] ### IC1 — [CH340C](https://www.flux.ai/vasyl/ch340c~qf3.md) - Manufacturer Name: Wah - Part Type: Integrated Circuit - Datasheet URL: https://datasheet.lcsc.com/szlcsc/Jiangsu-Qin-Heng-CH340C_C84681.pdf - Manufacturer Part Number: CH340C **Pins:** - ~CTS [pin 9] - ~DCD [pin 12] - ~DSR [pin 10] - ~DTR [pin 13] - ~RI [pin 11] - ~RTS [pin 14] - GND [pin 1] - NC [pin 7] - NC [pin 8] - R232 [pin 15] - RXD [pin 3] - TXD [pin 2] - UD- [pin 6] - UD+ [pin 5] - V3 [pin 4] - VCC [pin 16] ### IC2 — [PCM5102](https://www.flux.ai/vasyl/pcm5102~6a.md) - Part Type: Integrated Circuit - Manufacturer Part Number: PCM5102 - Datasheet URL: http://www.ti.com/lit/ds/symlink/pcm5102.pdf - Manufacturer Name: Texas Instruments **Pins:** - AGND [pin 9] - AVDD [pin 8] - BCK [pin 13] - CAPM [pin 4] - CAPP [pin 2] - CPGND [pin 3] - CPVDD [pin 1] - DEMP [pin 10] - DGND [pin 19] - DIN [pin 14] - DVDD [pin 20] - FLT [pin 11] - FMT [pin 16] - LDOO [pin 18] - LRCK [pin 15] - OUTL [pin 6] - OUTR [pin 7] - SCK [pin 12] - VNEG [pin 5] - XSMT [pin 17] ### J1 — [SJ-3523-SMT-TR](https://www.flux.ai/vasy_skral/sj-3523-smt-tr~6n4.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: CUI Devices - Manufacturer Part Number: SJ-3523-SMT-TR - Part Type: Connector - Datasheet URL: https://www.cuidevices.com/product/resource/sj-352x-smt.pdf **Pins:** - R [pin R] - S [pin S] - T [pin T] ### J3 — [TF-015](https://www.flux.ai/vasyl/tf-015~s40.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/2112221030_SOFNG-TF-015_C113206.pdf - Manufacturer Name: SOFNG - Part Type: Connector - Manufacturer Part Number: TF-015 **Pins:** - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - CD [pin 9] - CD/DAT3 [pin 2] - CLX [pin 5] - CMD [pin 3] - DAT0 [pin 7] - DAT1 [pin 8] - DAT2 [pin 1] - VDD [pin 4] - VSS [pin 6] ### PLAY/PAUSE — [MX1A-11NW](https://www.flux.ai/vasy_skral/mx1a-11nw~gf0.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Switch - Manufacturer Name: Cherry Americas LLC - Manufacturer Part Number: MX1A-11NW - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Cherry%20PDFs/MX%20Series.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] ### PWR — [LED-0805-Template-2](https://www.flux.ai/vasy_skral/led-0805-template-2~uu0.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### Q1 — BSS138 - Part Type: Transistor - Manufacturer Part Number: BSS138 - Datasheet URL: https://www.onsemi.com/pdf/datasheet/bss138-d.pdf - Manufacturer Name: onsemi **Pins:** - D - G - S ### Q2 — BSS138 - Part Type: Transistor - Manufacturer Part Number: BSS138 - Datasheet URL: https://www.onsemi.com/pdf/datasheet/bss138-d.pdf - Manufacturer Name: onsemi **Pins:** - D - G - S ### Q3 — [SI2333DS-T1-E3](https://www.flux.ai/jecstronic/si2333ds-t1-e3~hq.md) - Part Type: Transistor - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SI2333DS-T1-E3 - Datasheet URL: https://www.vishay.com/docs/72023/si2333ds.pdf - Manufacturer Name: Vishay Siliconix **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### REWIND — [MX1A-11NW](https://www.flux.ai/vasy_skral/mx1a-11nw~gf0.md) - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Cherry%20PDFs/MX%20Series.pdf - Manufacturer Name: Cherry Americas LLC - Part Type: Switch - Manufacturer Part Number: MX1A-11NW - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] ### RST — [PTS815](https://www.flux.ai/vasy_skral/pts815~6b.md) - Part Type: Switch - Manufacturer Name: C&K - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] ### STB — [LED-0603-Template](https://www.flux.ai/vasy_skral/led-0603-template~ye5.md) - Part Type: LED - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### SW1 — [EC12D1564402](https://www.flux.ai/vasy_skral/ec12d1564402~1ol.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/2011041404_ALPSALPINE-EC12D1564402_C444933.pdf - Part Type: Rotary encoder - Manufacturer Part Number: EC12D1564402 - Manufacturer Name: ALPSALPINE **Pins:** - A [pin A] - B [pin B] - C [pin C] - S1 [pin S1] - S2 [pin S2] ### U1 — [AMS1117-3.3](https://www.flux.ai/vasy_skral/ams1117-33~34.md) - Part Type: Integrated Circuit - Manufacturer Part Number: AMS1117-3.3 - Manufacturer Name: AMS - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811021917_Advanced-Monolithic-Systems-AMS1117_C6188.pdf **Pins:** - GND [pin 1] - TAB(VOUT) [pin 4] - VIN [pin 3] - VOUT [pin 2] ### U2 — [ESP32-WROOM-32E](https://www.flux.ai/vasy_skral/esp32-wroom-32e~7ed.md) - Part Type: Integrated Circuit - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf - Manufacturer Name: Espressif Systems - Manufacturer Part Number: ESP32-WROOM-32E - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - GND=> . [pin 15] - EN [pin 3] - GND [pin 38] - GND [pin 39] - GND [pin 1] - IO0 [pin 25] - IO12 [pin 14] - IO13 [pin 16] - IO14 [pin 13] - IO15 [pin 23] - IO16 [pin 27] - IO17 [pin 28] - IO18 [pin 30] - IO19 [pin 31] - IO2 [pin 24] - IO21 [pin 33] - IO22 [pin 36] - IO23 [pin 37] - IO25 [pin 10] - IO26 [pin 11] - IO27 [pin 12] - IO32 [pin 8] - IO33 [pin 9] - IO34 [pin 6] - IO35 [pin 7] - IO4 [pin 26] - IO5 [pin 29] - NC [pin 18] - NC [pin 19] - NC [pin 17] - NC [pin 21] - NC [pin 22] - NC [pin 32] - NC [pin 20] - RXD0/IO3 [pin 34] - SENSOR_VN [pin 5] - SENSOR_VP [pin 4] - TXD0/IO1 [pin 35] - VDD [pin 2] ### U6 — [TP4056](https://www.flux.ai/vasy_skral/tp4056~xa.md) - Datasheet URL: https://dlnmh9ip6v2uc.cloudfront.net/datasheets/Prototyping/TP4056.pdf - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: NanJing Top Power ASIC Corp. - Manufacturer Part Number: TP4056 **Pins:** - ~CHRG [pin 7] - ~STDBY [pin 6] - BAT [pin 5] - CE [pin 8] - EP [pin 9] - GND [pin 3] - PROG [pin 2] - TEMP [pin 1] - VCC [pin 4] ### U7 — [SN74LS04DR](https://www.flux.ai/jecstronic/sn74ls04dr~j88.md) - Manufacturer Part Number: SN74LS04DR - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.ti.com/lit/ds/symlink/sn74ls04.pdf - Manufacturer Name: Texas Instruments **Pins:** - 1A [pin 1] - 1Y [pin 2] - 2A [pin 3] - 2Y [pin 4] - 3A [pin 5] - 3Y [pin 6] - 4A [pin 9] - 4Y [pin 8] - 5A [pin 11] - 5Y [pin 10] - 6A [pin 13] - 6Y [pin 12] - GND [pin 7] - VCC [pin 14] ### USB1 — [TYPE-C-31-M-12](https://www.flux.ai/vasy_skral/type-c-31-m-12~75f.md) - Part Type: Connector - Manufacturer Name: Korean Hroparts Elec - Manufacturer Part Number: TYPE-C-31-M-12 - Datasheet URL: https://datasheet.lcsc.com/lcsc/2205251630_Korean-Hroparts-Elec-TYPE-C-31-M-12_C165948.pdf **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - GND [pin B1A12] - GND [pin A1B12] - SBU1 [pin A8] - SBU2 [pin B8] - SHIELD [pin S3] - SHIELD [pin S1] - SHIELD [pin S4] - SHIELD [pin S2] - VBUS [pin A4B9] - VBUS [pin B4A9] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/vasy_skral/esp32-music-player-reference-design~8wh](https://www.flux.ai/vasy_skral/esp32-music-player-reference-design~8wh).* --- *Generated from [https://www.flux.ai/vasy_skral/esp32-music-player-reference-design~8wh](https://www.flux.ai/vasy_skral/esp32-music-player-reference-design~8wh)*