HardLabs

WiTooth

automote·WiTooth·v1.1/WiTooth_v1P1.kicad_pcb

WiTooth PCB layout, top view — open source ESP32 board by automote

About the WiTooth PCB

WiTooth is an open source ESP32 PCB design by automote, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 67 × 25.8 mm, with 46 components from 27 distinct parts.

Its main chip is the ESP-32_WROOM32_Rectangle, from the ESP32 family. Other key parts include the AMS1117-3V3 and CP2102. By type, the board carries 16 resistors, 14 capacitors, 5 diodes, 3 ICs, 3 switches and 2 transistors.

It belongs with the iot & wireless, dev boards & breakouts and usb & debug tools designs in this gallery, and the repository also holds 1 earlier revision of it.

From the project

WiTooth- BLE to Wi-Fi GW based on ESP32 SoC

The WiTooth is based on Espressif ESP32 WiFi-BT-BLE SoC (System on Chip), ESP32 contains two low-power Xtensa® 32-bit LX6 microprocessors running at 80 MHz. Features include:

Integrated 802.11 BGN WiFi transceiver Integrated dual-mode Bluetooth (classic and BLE) Dual-core Tensilica LX6 microprocessor Up to 240MHz clock frequency 520kB internal SRAM 10-electrode capacitive touch support Hardware accelerated encryption (AES, SHA2, ECC, RSA-4096) 2.2 to 3.6V operating range 2.5 µA deep sleep current 3 SPI, 2 I2C, 2 UART 16 PWM outputs 2 DAC 2 I2S 18 analog-to-digital converter (ADC) channels

Main components on the WiTooth

AMS1117-3V3CP2102ESP-32_WROOM32_Rectangle

WiTooth bill of materials (BOM)

46 components, 27 distinct parts.

QtyPartRefs
1
AMS1117-3V3
U1
1
CP2102
U2
1
ESP-32_WROOM32_Rectangle
U3
2
MMBT3904
Q1, Q2
1
Crystal
Y1
2
CONN_01X20
P4, P5
1
RESET
SW1
1
BOOT
SW2
1
USER_SW
SW3
1
PWR
D1
1
RX_LED
D2
1
TX_LED
D3
1
CONNECT
D4
1
USER
D5
2
10uF
C1, C4
1
0.1uF
C2
2
47pF
C3, C5
2
1uF
C6, C13
4
1nF
C7, C8, C10, C14
2
27pF
C9, C11
Show 7 more
QtyPartRefs
1
100uF
C12
3
12K
R1, R2, R6
2
27E
R3, R5
3
1K
R4, R8, R9
5
470E
R7, R11, R12, R13, R14
1
5K
R10
2
0E
R15, R16

WiTooth design files

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

WiTooth: common questions

What microcontroller does the WiTooth use?

The WiTooth is built around the ESP-32_WROOM32_Rectangle, from the ESP32 family.

How big is the WiTooth PCB?

The WiTooth measures 67 × 25.8 mm, has 2 copper layers and is 2 mm thick.

How many components are on the WiTooth?

46 components, from 27 distinct parts. The full bill of materials is listed on this page.

Where can I download the WiTooth design files?

From the automote/WiTooth repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the WiTooth design in my own project?

Yes, under the terms of its GPL-3.0 license, which automote chose for the repository.

Can I test firmware for the WiTooth 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.

Earlier revisions in the repo: WiTooth_v1P0

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