From: Keith Packard <keithp@keithp.com>
Date: Sun, 28 Jan 2024 08:17:27 +0000 (-0800)
Subject: altos/st7565: Set default contrast to 13
X-Git-Tag: 1.9.18~2^2~23
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=7977ff5291c6161d37b7c1b1548258df2e58c09e

altos/st7565: Set default contrast to 13

This seems slightly better than 16. Might need to actually keep this
in config space.

Signed-off-by: Keith Packard <keithp@keithp.com>
---

diff --git a/src/drivers/ao_st7565.c b/src/drivers/ao_st7565.c
index 7540297c..3eec610d 100644
--- a/src/drivers/ao_st7565.c
+++ b/src/drivers/ao_st7565.c
@@ -128,7 +128,7 @@ ao_st7565_setup(void)
 	ao_delay(AO_MS_TO_TICKS(10));
 	ao_st7565_instruction(ST7565_RESISTOR_RATIO_SET(5));
 	ao_st7565_instruction(ST7565_DISPLAY_ON);
-	ao_st7565_set_brightness(0x10);
+	ao_st7565_set_brightness(13);
 }
 
 static uint8_t	rotbuf[AO_ST7565_WIDTH];