From 87e60ac8c3e646bbaee54d0699a8d46278ab5711 Mon Sep 17 00:00:00 2001
From: Daniel Friesel <daniel.friesel@uos.de>
Date: Fri, 15 Nov 2019 13:42:31 +0100
Subject: ptalog: note that the current code may violate the Code128 quiet zone

---
 include/object/ptalog.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/object/ptalog.h b/include/object/ptalog.h
index c5caa98..bdd0a33 100644
--- a/include/object/ptalog.h
+++ b/include/object/ptalog.h
@@ -97,6 +97,8 @@ class PTALog {
 #ifdef PTALOG_GPIO_BAR
 		void startTransition(char const *code, uint8_t code_length)
 		{
+			// TODO increase sleep duration: quiet zone must be at least 10x long
+			// (100ms for 10ms per bar, oder 50ms for 5ms per bar)
 			arch.sleep_ms(20);
 			for (uint8_t byte = 0; byte < code_length; byte++) {
 				for (uint16_t mask = 0x01; mask <= 0x80; mask <<= 1) {
@@ -105,6 +107,7 @@ class PTALog {
 				}
 			}
 			gpio.write(sync_pin, 0);
+			// TODO increase sleep duration (see above)
 			arch.sleep_ms(20);
 		}
 #else
-- 
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