How to Use ATtiny85: Specifications, Circuit & Applications

The ATtiny85 is a compact, low-power microcontroller that is well known among professionals and suitable for small applications that require limited I/O and processing control. This article will introduce its pins, specifications, applications and circuit design, to provide you with a comprehensive overview of this electronic device.

ATtiny85 Microcontroller

Table of Contents

• What is ATtiny85?
• ATtiny85 Specifications
• ATtiny85 Voltage Range
• ATtiny85 Pinout
• ATtiny85 Dev Board
• ATtiny85 Circuit Design
• ATtiny85 Circuit Example
• ATtiny85 Applications
• ATtiny85 Price
• ATtiny85 Datasheet
• Conclusion
• Frequently Asked Questions

What is ATtiny85?

ATiny85 microcontroller as AVR series of microchip products. Low requirements for other devices, suitable for small applications or space constrained applications. ATtiny85 operates either 1 MHz or 8 MHz on its internal oscillator with a maximum external clock of 20 MHz, providing sufficient adaptability for many low-power applications.

ATtiny85 Specifications

It's important to understand the basic ATtiny85 specs before beginning the project.

• Architecture: 8-bit AVR RISC
• Operating Voltage: 2.7V to 5.5V
• Flash Memory: 8 KB
• SRAM: 512 Bytes
• EEPROM: 512 Bytes
• Clock Speed: 1-8 MHz (internal), up to 20 MHz (external)
• I/O Pins: 5
• Power Consumption: Low power, suited for battery-operated devices
• Package: 8-pin DIP, SOIC

ATtiny85 Voltage Range

When designing a circuit using ATtiny85, prerequisites such as the voltage of its ATtiny85 should be considered. The operating voltage is 2.7V to 5.5V, it is suitable for low power applications, it is recommended to work in the 3.3V and 5V frame.

If you need a battery, choose one that complies with the ATtiny85 voltage range (2.7V to 5.5V), proper control management can improve the life of the microcontroller.

ATtiny85 Pinout

Knowing ATtiny85 pinout is one of the most important factors to use ATtiny85. There are eight pins and each pin can have a different use. Here's a breakdown of the ATtiny85 pin:

ATtiny85's limited number of pins requires efficient planning when designing circuits and distributing functions, especially when multiple components need to share pins.

ATtiny85 Dev Board

For those new to ATtiny85, the ATtiny85 development board provides an accessible starting point. It includes an integrated USB interface for easy programming, onboard leds and pin heads for rapid prototyping without additional components. Many ATtiny85 development boards are Arduino compatible, allowing you to program using the familiar Arduino IDE.

ATtiny85 Circuit Design

ATtiny85 Schematic

When planning an Attiny85-based project, creating an ATtiny85 schematic is essential to organize connections and ensure proper configuration of pins, power supplies, and grounding. Using schematics helps troubleshooting and rechecking the project for upgrades.

Designing an ATtiny85 Circuit

Here are some basic steps to design an ATtiny85 circuit:

• Describe why: What is the goal of designing this circuit?
• Select components: Decide what components you need (sensors, leds, etc.) and how they will be connected to the ATtiny85 pin.
• Draw schematic: Contains all connections, indicating control and ground, component pins, and any required resistors or capacitors.
• Board test: Gather circuits on the board recently to test and finalize your plan.

Creating a well-organized ATtiny85 potential map is an important part of any electronic project, as it facilitates assembly, testing, and troubleshooting design.

ATtiny85 Circuit Example

ATtiny85 Wireless Control Circuit

This is a wireless control circuit using ATtiny85 microcontroller.

Here are its components:

• RF Transmitter Module (U2) for wireless communication.
• Two Push Buttons (S1, S2) connected to the ATtiny85's PWM pins via 10kΩ resistors (R1, R2).
• Red LED (LED1) with a 220Ω resistor (R4) as an indicator.
• Power Source (VCC1) to supply the circuit.

This setup allows basic control and wireless communication using RF modules.

ATtiny85 Signal Indicator Circuit

This is a basic electronic circuit diagram of a color LED and buzzer indicator controlled by a atiny85 microcontroller.

Here are its components:

• ATtiny85 Microcontroller: Controls LEDs and buzzer.
• LEDs: Four LEDs (Green, Red, Orange, Blue) with 220Ω resistors for current limiting.
• Buzzer: Provides sound output.
• Reset Button: Manually resets the microcontroller.
• Capacitor (10 µF): Stabilizes the power supply.

ATtiny85 is utilized in wearable contraptions such as wellness trackers and prosperity screens. Its low power requirement makes it culminate for battery-powered contraptions that got to work ceaselessly for long periods of time.

ATtiny85 Applications

Thanks to its small size, low power consumption, and affordable cost, the ATtiny85 microcontroller is widely used in various applications:

• Wearable technology: ATtiny85 is used in wearable devices such as health trackers and health screens. Its low control prerequisite makes it ideal for battery-driven devices that require long periods of uninterrupted operation.
• Internet of Things (IoT):In iot ventures, gadgets are frequently required to perform straightforward assignments such as sensor observing and information transmission. The low power consumption and small size of ATtiny85 make it suitable for sensors, environmental monitoring systems, and other iot devices.
• Robot:In robotics, thanks to its sm e ATtiny85 can be used as a control unit for small robots, managing motors, sensors and basic communications.
• LED Lighting and Displays:ATtiny85 is widely used to make LED displays, light displays, and other decorative lighting. The PWM channel allows smooth LED control, making it ideal for art installations and custom lighting setups.

ATtiny85 Price

The ATtiny85 Price is generally affordable, with the chip itself usually priced at less than $2. Development boards can be a bit more expensive, especially if they come with extra features such as USB ports. The cost effectiveness of ATtiny85 contributes to its widespread utilization, as it can coordinate entry risk without affecting the base to the overall budget.

ATtiny85 Datasheet

The ATtiny85 data sheet is an important reference. Understanding the ATtiny85 datasheet before using the ATtiny85 can greatly improve efficiency, and engineers can also refer to the ATtiny85 PDF to learn more about the microcontroller features in depth.

Conclusion

The ATtiny85 is an amazing microcontroller that punches above its weight in both control and flexibility. Its compact size, direct pin and wide voltage compatibility make it the best choice for manufacturers. From simple LED lights to complex data loggers, ATtiny85 offers a wide range of possibilities. Whether you refer to the ATtiny85 datasheet or study the ATtiny85 schematic, this microcontroller opens a whole new door to your circuit design.

Frequently Asked Questions

How to Flash ATtiny85?

Connect the ATtiny85 to a software engineer such as USBasp or Arduino as an ISP, set the appropriate clock speed and voltage for the IDE, and write the code to the chip using the software engineer option using transport.

How to Program ATtiny85?

Introduce ATtiny Center into your IDE, connect ATtiny85 to your computer using Software engineer, enter your code, then transfer using the Software Engineer option using transfer.

How to Program ATtiny85 Without Arduino?

Use a USB software engineer such as USBasp or TinyUSB and transfer the code via AVRDUDE or Atmel Studio by connecting MISO, MOSI, and SCK to ATtiny85 and uploads the hexadecimal records.