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ATtiny45-Motor driver and-Led-Matrix-3-3

Mohamed-Tarek-Marzouk·ATtiny45-Motor-driver-and-Led-Matrix-3-3

ATtiny45-Motor driver and-Led-Matrix-3-3 PCB layout, top view — open source AVR/Arduino board by Mohamed-Tarek-Marzouk

About the ATtiny45-Motor driver and-Led-Matrix-3-3 PCB

ATtiny45-Motor driver and-Led-Matrix-3-3 is an open source AVR/Arduino PCB design by Mohamed-Tarek-Marzouk, published on GitHub. It is a 2-layer board measuring 72.7 × 28.8 mm, with 21 components from 8 distinct parts.

Its main chip is the ATtiny45-20P, from the AVR/Arduino family. By type, the board carries 9 diodes, 4 transistors, 3 resistors, 1 IC, 1 module and 1 connector.

It belongs with the displays & leds and robotics & motion designs in this gallery.

From the project

Custom H-Bridge: Controls a DC motor using a discrete transistor-based H-Bridge (4x NPN). Visual Display: A 3x3 LED Matrix for displaying patterns or status indicators. Audio Output: Integrated Buzzer for sound notifications or alerts. Efficient Control: All peripherals are manag

Custom H-Bridge: Controls a DC motor using a discrete transistor-based H-Bridge (4x NPN). Visual Display: A 3x3 LED Matrix for displaying patterns or status indicators. Audio Output: Integrated Buzzer for sound notifications or alerts. Efficient Control: All peripherals are managed by the 8-bit ATtiny45. Power Management:** External power input with a dedicated manual toggle switch.

Main components on the ATtiny45-Motor driver and-Led-Matrix-3-3

ATtiny45-20P

ATtiny45-Motor driver and-Led-Matrix-3-3 bill of materials (BOM)

21 components, 8 distinct parts.

QtyPartRefs
1
ATtiny45-20P
U1
1
Motor_DC
M1
4
BC547
Q1, Q2, Q3, Q4
1
Conn_01x02_Socket
J1
1
Buzzer
BZ1
1
SW_DPDT_x2
SW1
9
LED
D1, D2, D3, D4, D5, D6, D7, D8 +1
3
R
R1, R2, R3

ATtiny45-Motor driver and-Led-Matrix-3-3 design files

The KiCad project lives in the Mohamed-Tarek-Marzouk/ATtiny45-Motor-driver-and-Led-Matrix-3-3 repository on GitHub; these links point at the commit this page was built from.

ATtiny45-Motor driver and-Led-Matrix-3-3: common questions

What microcontroller does the ATtiny45-Motor driver and-Led-Matrix-3-3 use?

The ATtiny45-Motor driver and-Led-Matrix-3-3 is built around the ATtiny45-20P, from the AVR/Arduino family.

How big is the ATtiny45-Motor driver and-Led-Matrix-3-3 PCB?

The ATtiny45-Motor driver and-Led-Matrix-3-3 measures 72.7 × 28.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ATtiny45-Motor driver and-Led-Matrix-3-3?

21 components, from 8 distinct parts. The full bill of materials is listed on this page.

Where can I download the ATtiny45-Motor driver and-Led-Matrix-3-3 design files?

From the Mohamed-Tarek-Marzouk/ATtiny45-Motor-driver-and-Led-Matrix-3-3 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the ATtiny45-Motor driver and-Led-Matrix-3-3 design in my own project?

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

Can I test firmware for the ATtiny45-Motor driver and-Led-Matrix-3-3 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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