Franzininho DIY Assembly

Step-by-step assembly of the Franzininho DIY V2RV2

Before Getting Started

First of all, you should prepare the workspace by gathering the necessary tools for soldering. You will need:

• Soldering iron
• Solder wire
• Diagonal wire cutter for electronics
• Safety glasses

You should also separate the components to make soldering easier. You can find the components in the bill of materials. All organized? Let's go!

Assembling Your Franzininho DIY

At the start you will have a board without components, as shown in the image below:

Assembly sequence

You should always start with the shortest components. Follow the recommended sequence below.

1N4148 Diode

The first component to be placed is the 1N4148 diode at D3.

Warning

Be careful about the diode polarity. The black band of the diode must be placed according to the component drawing on the board.

Zener Diodes (3V6)

We have two Zener diodes to be placed at references D1 and D2.

Warning

Be careful about the diode polarity. The black band of the diode must be placed according to the component drawing on the board.

68R Resistors

At references R1 and R2 place the 68R resistors represented by the colors (blue, gray, black, and gold).

1k5 Resistor

At R3 place the 1k5 resistor represented by the colors (brown, green, red, and gold).

1k Resistors

1k resistors represented by the colors (brown, black, red, and gold) should be placed at R4 and R5.

8-pin Socket

The socket should be placed at IC1 for easy ATtiny85 insertion.

Warning

Check the socket position — the half-moon notch must face toward the pin header side of the board.

Tactile Switch

The switch can only be placed in one position, so just fit it where RESET is located.

Ceramic Capacitor

At C1 place the ceramic capacitor.

Green LED

The green LED should be placed at ON.

Be careful about LED terminal polarity.

Longer terminal (positive) - Shorter terminal (negative)

Yellow LED

The yellow LED should be placed at LED.

Be careful about LED terminal polarity.

Longer terminal (positive) - Shorter terminal (negative)

Voltage Regulator

At IC2 place the voltage regulator. It has 3 terminals and must be placed according to the drawing on the board.

Follow the component drawing on the board to guide the correct orientation.

3-pin Header

At J1, indicated by VIN, GND, VCC, place the 3-pin header.

8-pin Header

Should be placed where (GND, VCC, P6, ..., P1, P0) are indicated.

Support the header properly. Solder only one pin and check if it is aligned.

Electrolytic Capacitor

Now place the electrolytic capacitor at C2.

USB Connector

Almost done! Now place the USB connector in its correct orientation.

ATtiny85

Finally, place the ATtiny85 microcontroller in the 8-pin socket.

Be careful about the correct insertion orientation of the microcontroller. Use the socket drawing as a guide and double-check before powering the board.

Done!

Your Franzininho V2RV2 is assembled — now just program it and create many projects.