Platform Atmel AVR: Atmel AVR 8-bit MCUs deliver a unique combination of performance, power efficiency and design flexibility. Optimized to speed time to market-and easily adapt to new ones-they are based on the industry’s most code-efficient architecture for C and assembly programming
Microcontroller  | 
AT90PWM216  | 
Frequency  | 
16MHz  | 
Flash  | 
16KB  | 
RAM  | 
1KB  | 
Vendor  | 
Please use at90pwm216 ID for board option in “platformio.ini” (Project Configuration File):
[env:at90pwm216]
platform = atmelavr
board = at90pwm216
You can override default Atmel AT90PWM216 settings per build environment using
board_*** option, where *** is a JSON object path from
board manifest at90pwm216.json. For example,
board_build.mcu, board_build.f_cpu, etc.
[env:at90pwm216]
platform = atmelavr
board = at90pwm216
; change microcontroller
board_build.mcu = at90pwm216
; change MCU frequency
board_build.f_cpu = 16000000L
Debugging currently does not support Atmel AT90PWM216 board.