Develop applications using the AVR 1-series ATtiny1616Designed by LeoNerd's Store in United Kingdom
Still active despite the COVID-19 situation; though shipping times will be slightly slower at the moment.
Summary ATtiny1616 breakout UPDI+ programming header Status LED Reset button What is it? This board holds an AVR ATtiny1616 microcontroller, providing access to all of the IO pins. It adds power su…Read More…
This board holds an AVR ATtiny1616 microcontroller, providing access to all of the IO pins. It adds power supply decoupling capacitors, an LED, a button, and UPDI programming header to make a convenient self-contained development board for small microcontroller projects.
The LED is attached to the
PA7 pin via a 2k2 current-limiting resistor.
The button is attached to the
UPDI/RESET# pin via a series resistor to prevent damage in case of drive contention. Note that the
PA0 pin defaults to UPDI mode. Switching the pin to RESET mode will require the use of a 12V-capable UPDI programmer if you want to program the chip after this.
The board also provides a programming header in the AVR standard 2x3 layout. Note that this will requires a UPDI-capable programmer. An SPI-style ISP programmer will not work with this chip. This programming header also includes the USART.0 TX and RX signals in "UPDI+" layout, allowing single-cable programming and debug with a suitable programmer.
Finally, an extra 2-pin header is provided with another VCC and GND pin in case additional connections are required.
Reference icons are placed next to the pins used by the USART, I²C, SPI, and DAC modules, and where the LED is connected, to remind you what functions those pins usually perform.
This board is supplied with two 10 pin header strips for the IO pins and one 2x3 pin for the programming connector.
The ATtiny1616 is one of the new AVR 1-series microcontrollers, containing xmega-style peripherals. These are more powerful and flexible than previous generations of ATmega and ATtiny chips.
This particular chip contains 16 KiB of flash and 2 KiB of RAM on an AVR CPU clocked at 20 MHz. It provides three 16bit and one 12bit PWM-capable timers, a 16bit realtime counter, a USART with fractional baud rate generator, a master/slave capable SPI interface, I²C interface, three analog comparators, two 10bit ADCs, three 8bit DACs, and in total 18 IO pins split across three ports. It also provides a 6-channel event system and configurable custom logic block that can route events between peripherals without waking the CPU.
More information can be found on Microchip's website at https://www.microchip.com/wwwproducts/en/ATTINY1616
I wanted to experiment with the new AVR 1-series chips, but couldn't find any maker-oriented hardware for them.
I believe this may be the first use of an ATtiny814, outside of the development boards produced by Microchip themselves.
AVR UPDI Programmer with 12V A USB UPDI programmer with a second serial port and 12V pulse generator
AVR UPDI Programming Cable Flash firmware onto an AVR microcontroller chip via UPDI
ATtiny3217 Development Board A larger version of this board using the ATtiny3217 microcontroller
ATtiny814 Development Board A smaller version of this board using the ATtiny814 microcontroller
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Bjorn | June 29, 2022
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