Speaker pod
About the Speaker pod PCB
Speaker pod is an open source ESP32 PCB design by MostlyBuilds, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 86.2 × 50.2 mm, with 93 components from 47 distinct parts.
Its main chip is the ESP32-WROVER-E-N16R8, from the ESP32 family. Other key parts include the MIC2549A-1YM-TR, AP63301WU-7, FT231XS-R and MAX98357AETE+T. By type, the board carries 34 capacitors, 28 resistors, 10 connectors, 6 ICs, 5 diodes and 4 inductors.
It belongs with the audio, iot & wireless and usb & debug tools designs in this gallery.
From the project
This is a PCB design for an ESP32-based speaker controller
KiCad hardware design files for the MostlyBuilds Speaker Pod, a custom smart speaker built around an ESP32, touch display, and mono I2S amplifier.
- MostlyBuildsSpeakerPod.kicadpro - KiCad project file - MostlyBuildsSpeakerPod.kicadsch - schematic - MostlyBuildsSpeakerPod.kicadpcb - PCB layout - media/Schematic-V0R0.pdf - schematic PDF for quick reference - lib/symbols/ - project-local KiCad symbols - lib/footprints/ - project-local KiCad footprints - lib/3d/` - project-local 3D component models
Main components on the Speaker pod
Speaker pod bill of materials (BOM)
93 components, 47 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MIC2549A-1YM-TR | SOIC127P599X173-8N | IC1 |
| 1 | AP63301WU-7 | SOT95P280X100-6N | IC2 |
| 1 | ESP32-WROVER-E-N16R8 | ESP32WROVEREN16R8 | IC3 |
| 1 | FT231XS-R FT231XS | SSOP-20_3.9x8.7mm_P0.635mm | U1 |
| 1 | MAX98357AETE+T MAX98357AETE_T | QFN50P300X300X80-17N | U2 |
| 1 | NC ~ | Hosyond 2.8 inch 240x320 IPS Capacitive Touch Screen SPI Serial ILI9341V | U3 |
| 3 | MMBT2222AWT3G | SOT-323_SC-70 | Q1, Q2, Q3 |
| 3 | 1935161 Screw_Terminal_01x02 | TerminalBlock_Phoenix_PT-1,5-2-5.0-H_1x02_P5.00mm_Horizontal | J1, J6, J9 |
| 1 | M20-9990245 Conn_01x02 | PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | USB4105-GF-A-120 | GCT_USB4105-GF-A-120 | J3 |
| 1 | M20-9990445 Conn_01x04 | PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | 1935174 Screw_Terminal_01x03 | TerminalBlock_Phoenix_PT-1,5-3-5.0-H_1x03_P5.00mm_Horizontal | J5 |
| 1 | M20-9990645 JTAG | PinHeader_1x06_P2.54mm_Vertical | J11 |
| 1 | M20-9990645 Prog | PinHeader_1x06_P2.54mm_Vertical | J12 |
| 1 | M20-9980245 Extra | PinHeader_2x02_P2.54mm_Vertical | J13 |
| 1 | BWVS008080404R7M00 | BWVS008080404R7M00 | 4.7uH1 |
| 2 | PTS647SK38SMTR2LFS | PTS647SK38SMTR2LFS | S1, S2 |
| 1 | SMBJ6.0A | DIOM5436X261N | D1 |
| 1 | USBLC6-2SC6Y | SOT95P280X145-6N | D2 |
| 1 | 156120VS75000 GRN | LED_1206_3216Metric | D3 |
Show 27 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 156120RS75000 RED | LED_1206_3216Metric | D4, D5 |
| 4 | BLM31KN601SN1L | L_1206_3216Metric | FB1, FB2, FB3, FB4 |
| 2 | CC0805GRNPO9BN470 47pF | C_0805_2012Metric | C1, C3 |
| 14 | 0805B104J500CT 0.1uF | C_0805_2012Metric | C2, C5, C6, C8, C11, C12, C13, C19 +6 |
| 1 | GRM21BR71C475KE51L 4.7uF | C_0805_2012Metric | C4 |
| 6 | CL21B106KPQNNNE 10uF | C_0805_2012Metric | C7, C9, C15, C16, C28, C31 |
| 2 | UWZ1A470MCL1GB | PCAP_5x5.4-ELECT_NCA | C10, C32 |
| 1 | CC0805JRX7R9BB471 470pF | C_0805_2012Metric | C14 |
| 2 | CC0805JKX7R8BB105 1uF | C_0805_2012Metric | C17, C18 |
| 1 | C0805C560J5RACAUTO 56pF | C_0805_2012Metric | C22 |
| 2 | GMC21X5R226M16NT 22uF | C_0805_2012Metric | C23, C24 |
| 2 | CC0805JRX7R9BB221 220pF | C_0805_2012Metric | C27, C30 |
| 1 | C0805C103J5RAC7210 10nF | C_0805_2012Metric | C34 |
| 2 | ERA-6AEB512V 5.1K | R_0805_2012Metric | R1, R7 |
| 1 | ERA-6AEB101V 100 | R_0805_2012Metric | R2 |
| 1 | RG2012P-104-B-T5 100K | R_0805_2012Metric | R3 |
| 2 | RT0805DRE0727RL 27 | R_0805_2012Metric | R4, R5 |
| 1 | ERA-6AEB111V 110 | R_0805_2012Metric | R6 |
| 3 | ERA-6AEB102V 1K | R_0805_2012Metric | R8, R9, R25 |
| 8 | ERA-6AEB103V 10K | R_0805_2012Metric | R10, R14, R17, R18, R19, R20, R21, R22 |
| 1 | ERA-6AEB123V 12K | R_0805_2012Metric | R11 |
| 2 | ERA-6AEB472V 4.7K | R_0805_2012Metric | R12, R13 |
| 3 | MCU0805MZ0000ZP500 0 | R_0805_2012Metric | R15, R16, R27 |
| 1 | ERA-6AEB9312V 93.1K | R_0805_2012Metric | R23 |
| 1 | ERA-6AEB3012V 30.1K | R_0805_2012Metric | R24 |
| 1 | ERA-6AEB105V 1M | R_0805_2012Metric | R26 |
| 1 | NC | R_0805_2012Metric | R28 |
Speaker pod design files
The KiCad project lives in the MostlyBuilds/speaker-pod-pcb repository on GitHub; these links point at the commit this page was built from.
Speaker pod: common questions
What microcontroller does the Speaker pod use?
The Speaker pod is built around the ESP32-WROVER-E-N16R8, from the ESP32 family.
How big is the Speaker pod PCB?
The Speaker pod measures 86.2 × 50.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Speaker pod?
93 components, from 47 distinct parts. The full bill of materials is listed on this page.
Where can I download the Speaker pod design files?
From the MostlyBuilds/speaker-pod-pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Speaker pod design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which MostlyBuilds chose for the repository.
Can I test firmware for the Speaker pod without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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