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Programming ATtiny85 with Arduino Uno

Story I am working on a project which requires reading multiple sensor data on different locations. These require only few PWM pins so using multiple Arduino Uno would be expensive and unnecessary. So I decided to use ATtiny85 microcontroller in place of Arduino Uno development boards.ATtiny85 is a cheap and powerful alternate when u don't need too many PWM pins. Since ATtiny85 is just a microcontroller we ...

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Franzino is a low cost Arduino standalone board

Hardware components: Atmel ATmega328P × 1 16 MHz Crystal × 1 Capacitor 22 pF × 2 Capacitor 100 nF × 5 LED (generic) × 2 Linear Regulator (7805) × 1 Capacitor 10 µF × 2 1N4007 – High Voltage, High Current Rated Diode × 1 Resistor 10k ohm × 1 Resistor 1k ohm × 2 SparkFun Pushbutton switch 12mm × 1 Software apps and online services: Arduino Arduino IDE Hand tools and fabrication machines: Soldering iron (gener ...

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Arduino Without External Clock Crystal on ATmega328

Story An Arduino consists of many components like: a linear regulator, USB to Serial microcontroller, debug LED, power LED, reset button, RX & TX LED, crystal oscillator, etc. But a minimal circuit can have just the brain of the Arduino UNO, that is, an ATmega328p microcontroller (Reducing Arduino Power Consumption). You can assume this one is an extended version of that project. Making a Minimal Arduin ...

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Reducing Arduino Power Consumption

Story When it comes to portable electronics, one of the most important features is how to maximize the battery life. The ATmega328P, used on popular boards like the SparkFun RedBoard, Arduino Uno, and Pro Mini are actually quite power hungry. The RedBoard and Arduino Uno, draw around 15mA minimum, which doesn’t sound like much but as you’ll see in this project, we can drastically bring that down with just a ...

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Gimmick on Barebones Arduino 16MHz

Story Did you see this 8MHz no-crystal Arduino? Arduino on Internal Oscillator Crystal as Clock Source by Naman Chauhan is a great project if you can live with 8MHz using the internal RC oscillator of the Atmega328P chip. I really like Naman's project; I did my own version of the 8MHz Arduino many years ago here on Hackster. The 8MHz version conserves power, is Arduino IDE friendly, and is as cheap as the r ...

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Tri-Mode Digital Clock with ATtiny85 and RTC

Story Hello everybody, This is my first project using ATtiny85 microcontroller and also including a Real Time Clock (RTC) working with it. The use of ATtiny85 is a very interesting way to shrink your Arduino projects in a final tiny version. The Three-Modes Digital Clock includes a version with common decimal clock and also with two versions of binary clock. One version of binary clock is traditional where ...

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Bootload Your ATtiny85

Story What is a Bootloader? Microcontrollers require a programmer to install firmware on them. A programmer is a device, that when combined with software, loads firmware to the microcontroller. There are many programmers available. I won't go into to detail about them, but I will say that if you intend to do more than just tinker with microcontrollers, you will want to invest in a programmer. The Arduino ID ...

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