The 2313A have a price of about $1 each and the budding experimenter will be much less traumatized if a couple should go up in smoke. With the single Atmel MCUs, the builder controls all the options and expends much less cash than for the larger and more expensive Arduinos. Although we start with the ATTiny2313A, the discussion applies to the popular Atmel AVRs (8bit) such as the ATMega328p (of Arduino fame). This Instructable provides an introduction to using a single Atmel MCU. While planning to publish some MCU projects, it seemed reasonable to pass along the favor by providing some ‘Getting Started’ guides, although in considerably more detail, so that other interested people might benefit. Fortunately, a consulting firm supplying our MCU needs, also provided assistance for ‘getting started’ and pointers on the ‘secrets’.
Similar to other people, we had to learn certain well published ‘secrets’ of the Atmel AVR Microcontroller including, at the most basic level, the Data Direction Register DDR, PORT versus PIN and the USART data format (inverted). We began using the Atmel MCUs in the early 2000s in order to create Data Acquisition units for experiments with IC fabrication and for demonstrating a unique multichannel noise communicator.
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**NOTE: For those wanting the PDF of this instructable, download the attached PDF using the below link rather than the one automatically generated by the website - that automation does not maintain the association of the captions with the pictures. Startups 3 and 4 use the platform to demonstrate ‘Blinky’, the blinking LED, and to describe the ‘secret’ life of the Atmel PORT, PIN and DDR registers and pull-up resistors. The circuit will be used for the remaining three Startup Instructables. Startup 2 describes the construction of a ‘platform’ circuit on an experimenter’s breadboard used to set the internal fuse bits of the MCU.
This initial Startup describes the setup of the Atmel Studio and Programmer and the construction of an adapter cable for connecting the programmer to an experimenter’s board.
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Along the way, the series (Startup 5) shows how to construct the ‘Lifeline’ to fix wrongly set fuse bits – a simplest of projects but useful to the expert and makes a nice gift. Here starts the journey, albeit rather short, through a series of ‘Startup’ Instructables focusing on ‘getting started’ with the Atmel MCU. Installing Atmel Studio (AS) and a programmer embody the first steps on the path to using an individual Atmel AVR Microcontroller unit MCU as opposed to the MCU-on-a-board such as Arduino.
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