HardLabs

Franzininho-WiFi

Franzininho·Franzininho-WiFi·Franzininho-WIFI-kicad/Franzininho WIFI.kicad_pcb

Franzininho-WiFi PCB layout, top view — open source ESP32 board by Franzininho

About the Franzininho-WiFi PCB

Franzininho-WiFi is an open source ESP32 PCB design by Franzininho, published on GitHub. It is a 2-layer board measuring 64.3 × 25.4 mm, with 32 components from 20 distinct parts.

Its main chip is the ESP32-S2-WROOM, from the ESP32 family. Other key parts include the USBLC6-2SC6 and AP2112K-3.3. By type, the board carries 9 capacitors, 8 resistors, 6 connectors, 4 diodes, 3 ICs and 2 switches.

It belongs with the iot & wireless, sensors and dev boards & breakouts designs in this gallery.

From the project

Franzininho WiFi is a board with ESP32-S2.

The Franzininho WiFi Board is a development board based on the ESP32-S2-WROOM module.

For more details, check the official documentation: Franzininho WiFi Documentation

- ESP32-S2-WROOM Module - Xtensa® single-core 32-bit LX7 microcontroller running at up to 240 MHz - Memory: - 128 KB ROM - 320 KB SRAM - 16 KB RTC SRAM - 4 MB Flash - Wi-Fi 802.11 b/g/n

- Interfaces - GPIO, SPI, LCD, UART, I2C, I2S - Camera, IR, pulse counter, LED PWM - TWAI (CAN), USB 1.1 OTG - ADC, DAC, touch sensor, internal temperature sensor

Franzininho-WiFi, from the project README
From the project README

Main components on the Franzininho-WiFi

USBLC6-2SC6ESP32-S2-WROOMAP2112K-3.3

Franzininho-WiFi bill of materials (BOM)

32 components, 20 distinct parts.

QtyPartRefs
1
USBLC6-2SC6
U1
1
ESP32-S2-WROOM
U2
1
AP2112K-3.3
U3
1
USB_B_Micro
J1
2
Conn_01x20_Male
J2, J3
2
Conn_01x03_Female
J4, J5
1
Conn_01x04_Female
J6
1
RESET
SW1
1
BOOT
SW2
1
1N5819W
D1
3
XL-0603QYGC
LED
D2, D3, D4
1
CL10A106KP8NNNC
22uF
C1
1
CL10A105KB8NNNC
1uF
C2
2
CC0603KRX7R9BB104
100nF
C3, C9
2
CL10C200JB8NNNC
20pF
C4, C5
3
CL10A106KP8NNNC
10uF
C6, C7, C8
3
0603WAF1002T5E
10k
R1, R2, R5
2
0603WAF0000T5E
0
R3, R4
1
0603WAF1002T5E
100k
R6
2
0603WAF1002T5E
1k
R7, R8

Franzininho-WiFi design files

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

Franzininho-WiFi: common questions

What microcontroller does the Franzininho-WiFi use?

The Franzininho-WiFi is built around the ESP32-S2-WROOM, from the ESP32 family.

How big is the Franzininho-WiFi PCB?

The Franzininho-WiFi measures 64.3 × 25.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Franzininho-WiFi?

32 components, from 20 distinct parts. The full bill of materials is listed on this page.

Where can I download the Franzininho-WiFi design files?

From the Franzininho/Franzininho-WiFi repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Franzininho-WiFi design in my own project?

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

Can I test firmware for the Franzininho-WiFi 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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