HardLabs

Mixxtape

funvill·mixxtape·hardware/mixxtape.kicad_pcb

Mixxtape PCB layout, top view — open source ESP32 board by funvill

About the Mixxtape PCB

Mixxtape is an open source ESP32 PCB design by funvill, published on GitHub. It is a 2-layer board measuring 99.5 × 63.5 mm, with 67 components from 16 distinct parts.

Its main chip is the C701341, from the ESP32 family. Other key parts include the C51928215, C2758105, C6186 and C7484. By type, the board carries 29 diodes, 16 capacitors, 11 resistors, 5 ICs, 4 switches and 2 connectors.

It belongs with the audio and iot & wireless designs in this gallery.

From the project

PCB Mix tape

A 2-layer PCB in the form factor of a compact cassette (99.5 × 63.5 mm) that slides into a real Norelco cassette case. The bare board is the object — no enclosure, no bezel.

An onboard MEMS microphone records three 4-minute tracks. Hold REC to record, release to stop. Pair it to any Bluetooth earbuds or speaker and press PLAY.

Cassette-shaped Bluetooth players exist. Nobody ships a cassette-shaped recorder — and recording is the part that made a mixtape a mixtape.

Mixxtape, from the project README
From the project README

Main components on the Mixxtape

C701341C51928215C2758105C6186C7484

Mixxtape bill of materials (BOM)

67 components, 16 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C701341
WIFI-SMD_ESP32-WROOM-32E
U1
1
C51928215
LGA-8_L4.0-W3.0-R_WMM7040DT0
U2
1
C2758105
SOIC-8_L5.3-W5.3-P1.27-LS8.0-BL
U3
1
C6186
SOT-223-3_L6.5-W3.4-P2.30-LS7.0-BR
U4
1
C7484
SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BR
U8
1
C165948
USB-C_SMD-TYPE-C-31-M-12_1
J1
1
TF-SMD_TF-01A
J4
4
C318884
SW-SMD_4P-L5.1-W5.1-P3.70-LS6.5-TL_H1.5
SW1, SW2, SW3, SW4
29
C5349954
XL-1615RGBC-2812B
D1, D2, D3, D4, D5, D6, D7, D8 +21
2
C15850
10uF
C1, C2
1
C15525
C0402
C5
12
C1525
C0402
C6, C7, C8, C19, C20, C21, C22, C23 +4
1
C52923
1uF
C9
2
C25905
R0402
R1, R2
8
C25744
R0603
R3, R4, R5, R6, R7, R9, R10, R11
1
C25076
100R
R12

Mixxtape design files

The KiCad project lives in the funvill/mixxtape repository on GitHub; these links point at the commit this page was built from.

Mixxtape: common questions

What microcontroller does the Mixxtape use?

The Mixxtape is built around the C701341, from the ESP32 family.

How big is the Mixxtape PCB?

The Mixxtape measures 99.5 × 63.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mixxtape?

67 components, from 16 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Mixxtape design files?

From the funvill/mixxtape repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Mixxtape design in my own project?

The repository has no license, so all rights stay with funvill. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Mixxtape 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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