Adrianino. ATtiny 1614. UPDI.

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Introduction: Adrianino. ATtiny 1614. UPDI.

The following project was born with the idea that electronics is very easy to learn and modular at the same time. Although I have already finished my Fab Academy, I am still researching. Speaking with my instructors Nuria and Pablo, I told them that I wanted to continue working on the Hello World project, but I was not satisfied with making a board for each sensor or actuator.

So I decided to make a board with the ATtiny1614, where I could use the maximum pins for the inputs or outputs; that had external power; I2C connection. The idea is that a student can test as many sensors as possible, become familiar with electronics and programming little by little. And the Adrianino was born. Furthermore, I wanted to go one step further and place a VCC pin next to the UPDI programming pins, which I will explain later on how it works. This version of Adrianino has been updated for the new Serial-UPDI converter.

Step 1: Features

  • This board has FTDI and UPDI + VCC connection to program it without the need for external power (or the FTDI).
  • It contains a voltage regulator to power the board with a power supply (9V battery).
  • It has another 9V power connection to for example power a DC motor driver.
  • Then there are 4 outputs or inputs with VCC and GND on each side to be able to connect different inputs or outputs.
  • On the left there is an I2C connection to connect an LCD, OLED or a sensor that uses this communication.
  • There are 3 outputs or inputs at the bottom and with a GND pinout.
  • There is an LED and an integrated button, which will help us to test that the microcontroller works with a simple program.
  • Through the FTDI connection we can read the data from the different sensors through the Serial.

Step 2: Datasheet

ATTINY1614

As we have looked at the graph, there are more microcontrollers within the tinyAVR-1series family. Another ATtiny I use is the 1614. I combine the Datasheet image with the one from the SpenceKonde website on the ATtiny1614.

  • 14 pin package.
  • Two internal clocks 16 and 20 MHz.
  • 16 KB Flash Memory.256 B EEPROM.2 KB SRAM.
  • Maximum voltage: 6V; minimum voltage -0.5 V.

After looking at the basic features, you will find the pinning of the microcontroller.

Step 3: BOM and Schematic for Adrianino

This is the schematic where you can see all the components. More information here.

Step 4: Board Design

Here you can download the Eagle files and the PNG's. Here is a sample of the PNG's, traces and cutting lines. The files are for milling with a CNC machine.

Step 5: UPDI + VCC Module

You can find the files to create your Serial - UPDI + VCC converter here.

UPDI + VCC converter

Step 6: Operation

The connection is very simple, we only need the FTDI-USB and we connect the UPDI + VCC module to the board, in this case to the Adrianino that has the three pins (UPDI + GND + VCC).

Step 7: Programming With Arduino IDE and Windows.

Video Tutorial

Step 8: Inputs and Outputs.

You can connect different sensors and actuators. In the following video you can see several examples. In this link you can find more documentation.

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