调低液晶屏对比度
diff --git a/lcd/ST7565R.c b/lcd/ST7565R.c
index 9b91610..10eabe5 100644
--- a/lcd/ST7565R.c
+++ b/lcd/ST7565R.c
@@ -121,7 +121,7 @@
 
 
 #define GLCD_INIT_NHD_C12864WC_FSW_FBW_3V3_M
-uint8_t contrast = 37;
+uint8_t contrast = 33;
 void glcd_ST7565R_init(void) {
 	
 #if defined(GLCD_INIT_NHD_C12832A1Z_FSW_FBW_3V3)