contrib/gpio-mpd-rpi: improves and comment HD44780 init

[nit.git] / contrib / physical_interface_for_mpd_on_rpi / physical_interface_for_mpd_on_rpi.nit

diff --git a/contrib/physical_interface_for_mpd_on_rpi/physical_interface_for_mpd_on_rpi.nit b/contrib/physical_interface_for_mpd_on_rpi/physical_interface_for_mpd_on_rpi.nit
index 95eb246..4acbae2 100644 (file)
--- a/contrib/physical_interface_for_mpd_on_rpi/physical_interface_for_mpd_on_rpi.nit
+++ b/contrib/physical_interface_for_mpd_on_rpi/physical_interface_for_mpd_on_rpi.nit
@@ -235,11 +235,13 @@ class HD44780
                # set entry mode
                #entry_mode(true, true)
 
-               write(true, "33".to_hex)
-               write(true, "32".to_hex)
-               write(true, "28".to_hex)
-               write(true, "0C".to_hex)
-               write(true, "01".to_hex)
+               write(true, "33".to_hex) # init
+               write(true, "32".to_hex) # init
+               write(true, "28".to_hex) # 2 lines, 5x7
+               write(true, "0C".to_hex) # hide cursor
+               write(true, "06".to_hex) # cursor move right
+               write(true, "04".to_hex) # turn on display
+               write(true, "01".to_hex) # clear display
        end
 
        fun write_4_bits(v: Int)