ATtiny817 Digital Sound Recorder using DAC with parrot

This example demonstrates a digital sound recorder using ADC for sampling and DAC for playback. Samples timed at a defined frequency, controlled by a timer and event system. SPI used to store on a dataflash, driver included. This example uses START peripheral drivers.

The example is explained in more details in the application note AN2547.

Related Documentation

• AN2547 - Digital Sound Recorder using DAC
• Parrot (Voice Recorder) with ATtiny817 Hardware Users Guide
• ATtiny817 Product Page

Software Used

• MPLAB X IDE v6.25 or later
• XC8 (v3.00) alternatively AVR/GNU C Compiler 5.4.0 can be used
• ATtiny_DFP 3.3.272 or later

Hardware Used

• AVR Parrot
• Atmel-ICE debugger

Setup

• Connect usb power
• Connect a debugger of your choice

Operation

1. Download the zip file or clone the example to get the source code.
2. Open attiny817-digital-sound-recorder-with-parrot-mplab.X in MPLAB.
3. Connect the usb power and the debugger with your computer.
4. Make sure the kit is selected as the tool to be programmed under project settings.
5. Press the make and program button to program the device.
6. Use the buttons on the board to start recording, erase or start playback.

Conclusion

We have here shown how you can use a ATtiny817 as a digital sound recorder with the parrot board.