Add a controller shell.

This adds a mini shell to the tcp server that allows the user
to modify the current state.

Commands are in the form:

  set [int_attribute] (=|+=|-=) [number]
  set [bool_attribute] (on|off|toggle)
  print
  end

for example:

  set brightness += 5
  set power on
  print
  end

1 files changed, 1 insertions, 1 deletions

diff --git a/include/ws2812b_writer.h b/include/ws2812b_writer.h
index 2252230..9da9345 100644
--- a/include/ws2812b_writer.h
+++ b/include/ws2812b_writer.h
@@ -11,7 +11,7 @@ typedef struct {
 
   struct {
     uint32_t time;
-    int32_t timetick;
+    int timetick;
     uint8_t brightness;
     uint8_t off;
     uint8_t n_snow;