ATtiny85 is a small yet powerful microcontroller suitable for low-power applications. It comes with 8KB flash memory and 512bytes of RAM and EEPROM, which lets it store numerous programs in it. Its 8-bit RISC-based CPU allows you to interact with real-time applications at a much greater speed.
Its I2C and SPI feature lets you communicate with external sensors or devices. With many advantages of a single chip, it becomes easier to design and implement a project idea out of your mind. If you are out of ideas, then don’t worry. Just stick with this article till the end to get some.
Tiny Gaming device

Despite its small size, it gives you a smooth gaming experience. You can easily select your favorite game from the main menu after switching ON the device. The four tactile switches below the OLED screen lets you navigate up, down, left, and right. A buzzer at the bottom gives the notification sounds during a game. So, this little ATtiny85 Gameboy is perfect for keeping boredom away.
PCB details
To maintain proper electrical conductivity and resistance against expansion, PCBWay ensures a 25-micron hole wall copper thickness on its PCB boards. It improves reliability by reducing the chances of hole wall fracture or failure under load conditions.
The image here shows the software design of the PCB board.

Right here, the image shows the PCB received from PCBWay. The received PCB looks similar to the one designed in the software.

Components Required
OLED screen
Tactile switches x4
SPST switch x1
Buzzer
Battery
**To know more about the above project, click on the link below.
Tiny Gaming device
MP3 Player

Tuning to our favorite music always refreshes our mood. Right? So, this project guides you to make your Walkman using ATtiny85. An OLED screen on the board indicates the current song details along with volume and battery indication. Just fill the Micro SD with your favorite songs and listen to them anytime, without any internet connection. The device runs on a 3.7V LiPo battery that gives you ample listening time on a single charge. With the deep sleep feature of the microcontroller, you can further increase the battery life.
PCB details
The consistent solder mask protects the PCB board from moisture ingression. The thick copper tracks ensure a good signal quality with minimal noise interference.
The image here shows the design of PCB in the software.

The received PCB from PCBWay does not contain any welding or open circuit repairs, visible in the image below.

Components Required
Battery charging and protection circuit
OLED display
SPST switch x1
Tactile switch x3
3.7V LiPo battery
Micro SD card
**To know more about the above project, click on the link below.
MP3 Player
LED Matrix Display Badge

It is a simple and exciting project that lets you display alphabets and numbers on a LED matrix. Twenty LEDs arranged in a 5×4 matrix gives this badge an appalling look. By changing a basic code, you can also display your name on the matrix. The board runs on a coin cell, which omits the need to charge it periodically. So, display your inner creativity on this badge using an ATtiny85.
PCB details
The Copper traces on the board run in straight lines with no sharp ends. It ensures a uniform signal quality throughout the board. To keep an optimum temperature of the board, the PCB uses a good quality base material. With multiple inspections and quality control processes, PCBWay provides the best quality boards for the projects.
The image shows the software design of the PCB.

And right here, the image shows the PCB board from PCBWay.

Components Required
LEDs x20
Coin cell battery
SPST switch
Resistors x5
PCB board from PCBWay
**To know more about the above project, click on the link below.
LED Matrix Display Badge