The battery indicator is an excellent knock-off of the glowing battery level indicator on the iPhone and looks great on a Windows desktop. With the iPhone Battery gadget, you can also mimic an antique meter, a Duracell® battery and a sphere battery among other cool things. If you're on a laptop or other portable Windows 7 device, the iPhone Battery gadget should definitely help you keep a closer eye on your available power. Sushi drive info windows 7. 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 need a Arduino Uno to program it. In this project I will explain how to do it. Below is the pin configuration of ATtiny85 and the datasheet can be found here. ATtiny85 Pin Configuration Configuring Arduino Uno as a ISP (In-System Programming) To program the ATtiny85 we need to first set Arduino Uno in ISP mode. Connect your Arduino Uno to the PC. SoftwareOpen Arduino IDE and open the ArduinoISP example file (File -> Examples -> ArduinoISP) and upload it. Adding ATtiny85 Support to Arduino IDE By default Arduino IDE doesn't support ATtiny85 so we should add ATtiny boards to Arduino IDE. Open File -> Preferences and in the Additional Boards Manager URLs give this url. Building an Arduino on a Breadboard. Place your Atmega chip into the Arduino board with the divot of the chip facing outward. The typical breadboard is laid out in a matrix of.1 inch spaced holes. Most through hole Integrated Circuit chips or ICs will fit snuggly in this matrix. Also, many headers and “breadboard friendly” components will fit nicely. Which holes you plug them into does matter. So lets take a look at how the breadboard is laid out. Arduino Tutorial Lesson 3 - Breadboard and LEDs. Upload the sketch to your Arduino. Now change your breadboard wiring so that it. ReferenceIf you are like and me and enjoy building electronic projects then you might have worked with the Arduino Uno. The Arduino uno is the most popular micro controller of the series and has a large collection of libraries which make working with it very easy. So there would be times where you may need more than one Uno for the project, I like to make my own micro controller rather than buying a new one, as this saves me some money which may be helpful for other such projects. In this tutorial I'm going to show you how to, build your own Arduino Uno clone, so you can use it along side with circuits. This is a breadboard tutorial so no soldering skills are required. You can check out my video tutorial above. The Arduino is based on the Atmega328 IC and it is also the heart of the circuit. All the processing and everything else is done by the IC. The Atmega328 has to have a arduino boot loader flashed on to it to program it using the Arduino IDE. The arduino uno is made of three parts • Atmega328 IC • Voltage Regulators • Serial Programmer You can purchase an Atmega328 IC with the Arduino boot-loader pre-installed or you can also install it yourself but you will need an Arudino uno to install the boot-loader. So it is recommended to get a Atmega328 with a pre-installed boot-loader. The first step will involve building a voltage regulator, the atmega328 is a 5V micro controller so is the arduino Uno. So we need a regulated power supply to power the Atmega328 IC. For this we will be using a L7805 voltage regulator this is a popular voltage regulator and is cheap and serves the purpose of building an Arduino uno. This voltage regulator gives a voltage of 5V and a maximum load current of 1A. You can also use a better efficiency regulator if you need more power output. Getting StartedYou may also use a breadboard power supply as an alternative. The circuit is fairly simple and the connections from the Arduino to any external circuit may vary depending on the external circuits. It would be recommended to try it out on a breadboard first. Follow the circuit above and assemble it on the breadboard. You can also add a led on digital pin 13 if you want to replicate the on board led as on the Arduino uno. I am assuming you got an arduino with a preinstalled boot-loader if you got one without the bootloader you can use an Arduino uno to flash the boatload on the IC. Great instructable. Building an 'Arduino' from the ground up so to speak is a good way of learning and I have done so many times Nevertheless -and i usually get flamed for this- if you 'just want an arduino' self building is not economical with a UNO clone available for about 3 USD. A bare Atmega328P-pu chip can be had for 1.30 USD, but then u still need to add crystal, 7805, capacitor, LED, breadboard and then you dont even have USB input yet If you want to go small and low power and therefore want to ditch the FTDI part, take a pro mini for about 1.50 USD. So to summarize, great instructable, great way to learn, but if you just want an arduino cheap, just buy one 1 year ago.
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