Ensure your device works with these simple tests.
../examples/charlcd_mono_simpletest.py
../examples/charlcd_rgb_simpletest.py
../examples/charlcd_i2c_mono_simpletest.py
../examples/charlcd_i2c_rgb_simpletest.py
../examples/charlcd_spi_mono_simpletest.py
../examples/charlcd_keypad_simpletest.py
../examples/charlcd_rpi_mono_simpletest.py
../examples/charlcd_rpi_rgb_simpletest.py
../examples/charlcd_customcharacter.py
../examples/charlcd_custom_character_nyan_cat.py