From 620360fd7e90f19dc4fe1407e9ac6074c43764d7 Mon Sep 17 00:00:00 2001
From: Brian Y <briancyiu@gmail.com>
Date: Sun, 15 Dec 2019 16:34:12 -0500
Subject: [PATCH] extract bytes from data

---
 RaspberryPi&JetsonNano/python/lib/waveshare_epd/epd2in7.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/RaspberryPi&JetsonNano/python/lib/waveshare_epd/epd2in7.py b/RaspberryPi&JetsonNano/python/lib/waveshare_epd/epd2in7.py
index 0c6b28c..7dc1f99 100644
--- a/RaspberryPi&JetsonNano/python/lib/waveshare_epd/epd2in7.py
+++ b/RaspberryPi&JetsonNano/python/lib/waveshare_epd/epd2in7.py
@@ -272,7 +272,7 @@ class EPD:
         epdconfig.spi_writebyte([command])
         if data:
             epdconfig.digital_write(self.dc_pin, epdconfig.GPIO.HIGH)  # HIGH: write data
-            epdconfig.spi_writebyte(data)
+            [epdconfig.spi_writebyte(byte) for byte in data]
 
     def set_lut(self):
         look_up_tables = {