Franzininho DIY Board
The Franzininho DIY was developed with a "Do It Yourself" philosophy and is based on the Arduino platform. The goal is for people who acquire it to follow the Maker journey — assembling and programming their own Arduino-compatible board.

It is sold as a soldering kit. We do not recommend buying a pre-assembled Franzininho DIY, since the pedagogical objective includes the assembly journey.

It is an excellent choice for soldering workshops and first steps with Arduino programming. With easy-to-identify and easy-to-solder components, anyone with little or no soldering experience can assemble the board and quickly start building projects such as automation systems, robots, and games (see examples in our documentation).

The board is based on the ATtiny85 microcontroller and was created for educational purposes. It targets technical course students, engineering students, makers, and hobbyists who want to learn about prototyping, soldering, electronics, and programming in a true DIY experience.
The board has 5 I/O pins, a power indicator LED, a general-purpose LED, a USB connector for power and programming, an external power connector, and a Reset button.
Pinout

The numbering of pins 4 and 5 on the silkscreen changed starting from V2RV2. A software adjustment is still needed.
Feature summary
- Microcontroller: ATtiny85
- I/O pins: up to 6
- Analog inputs: up to 4
- PWM: 3
- I2C: 1
- SPI: 1
- Operating voltage: 5 V
- Power supply: USB (5 V) or external (7.5 V to 9 V)
Documentation
The board can be programmed directly in the Arduino IDE, including with Ardublock. It can also be programmed in C using more advanced IDEs.
- Schematic
- Hardware repository
- e-book: Franzininho — Assemble and Program Your Own Arduino
- Printed book: Franzininho — Assemble and Program Your Own Arduino
- Fritzing component
Open hardware project
The project is open hardware, published under CC-BY-SA-4.0.
The Franzininho DIY is certified by OSHWA with UID BR000003.

Before reproducing or creating derivatives of this project, review the license requirements, copyright notices, and best practices.
Where to buy
Retail
Wholesale
Contact us: contato@franzininho.com.br