Added support for ATtiny processors (#353)

* added support for ATtiny processors

* for ATtiny added more effects if the device has more memory

* fixed some signed/unsigned comparison warnings

* added note to ATtiny example sketch

* fix another signed/unsigned comparison warning

* added results of running the tester script

* fixed a typo

examples/tester.zsh

@@ -8,11 +8,9 @@
 # output a file and go get a cup of coffee:
 #   ./tester.zsh > tester.txt
 
-# add the Arduino IDE 1.0 application to $PATH
-# export PATH="$PATH:/Applications/Arduino IDE.app/Contents/MacOS"
-
 # path to the Arduino IDE 2.0 CLI executable (for MacOS)
-alias -g arduinoCLI="/Applications/Arduino\ IDE.app/Contents/Resources/app/node_modules/arduino-ide-extension/build/arduino-cli"
+#alias -g arduinoCLI="/Applications/Arduino\ IDE.app/Contents/Resources/app/node_modules/arduino-ide-extension/build/arduino-cli"
+alias -g arduinoCLI="/Applications/Arduino\ IDE.app/Contents/Resources/app/lib/backend/resources/arduino-cli"
 
 # test that we can execute the Arduino command
 # arduinoCLI version
@@ -22,12 +20,14 @@ alias -g leonardo-board="arduino:avr:leonardo"
 alias -g esp8266-board="esp8266:esp8266:nodemcuv2"
 alias -g esp32-board="esp32:esp32:esp32doit-devkit-v1"
 alias -g rp2040-board="rp2040:rp2040:rpipico"
+alias -g ATtiny-board="megaTinyCore:megaavr:atxy2"
 
 # port aliases
 alias -g leonardo-port="/dev/cu.usbmodem14101 (Arduino Leonardo)"
 alias -g esp8266-port="/dev/cu.usbserial-0001"
 alias -g esp32-port="/dev/cu.usbserial-0001"
 alias -g rp2040-port="/dev/cu.usbmodem14101 (Raspberry Pi Pico)"
+alias -g ATtiny-port="/dev/cu.usbserial-2340 SerialPort (USB)"  # Arduino Nano used as a programmer
 
 # example compile command:
 # arduinoCLI compile -b leonardo-board ws2812fx_segments/ws2812fx_segments.ino
@@ -109,3 +109,7 @@ arduinoCLI compile --no-color -b esp8266-board ws2812fx_soundfx/ws2812fx_soundfx
 # the ws2812fx_dma example sketch is written to work only on ESP8266 boards, so test that separately
 echo "\nCompiling ws2812fx_dma/ws2812fx_dma.ino for ESP8266"
 arduinoCLI compile --no-color -b esp8266-board ws2812fx_dma/ws2812fx_dma.ino 2>/dev/null; echo "exit status" $?
+
+# the ATtiny board is special, so test that separately
+echo "\nCompiling ws2812fx_ATtiny/ws2812fx_ATtiny.ino for ATtiny412"
+arduinoCLI compile --no-color -b ATtiny-board ws2812fx_ATtiny/ws2812fx_ATtiny.ino 2>/dev/null; echo "exit status" $?