update readme.md

RobTillaart · Nov 22, 2023 · b5b9c63 · b5b9c63
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [0.3.9] - 2023-11-22
 - update readme.md
+  - section about hardware performance (Kudos to SteveMicroCode #29)
   - incl badges to platformIO
 
 

diff --git a/README.md b/README.md
@@ -18,14 +18,16 @@ Library for TM1637 driven displays and key scans.
 
 The TM1637 drives 7 segment displays and can also scan a 16 key keyboard.
 
-Library is tested with Arduino UNO and a 6 digits display and 4 digit (clock) display.
+The library is mainly tested with Arduino UNO, both a 6 digits display and 4 digit (clock) display.
 
 ESP32 is supported since 0.2.0 see https://github.com/RobTillaart/TM1637_RT/pull/5
 
 
 #### Related
 
 - https://docs.wokwi.com/parts/wokwi-tm1637-7segment#simulator-examples
+- https://github.com/SteveMicroCode/PIC-TM1637-Library-CodeOn 
+  - includes interesting hardware notes.
 
 
 #### Hardware connection and performance
@@ -47,6 +49,8 @@ beyond the specifications of the datasheet.
 Interference from other electronic components is often nearby, and if you need longer
 cables consider shielded ones.
 
+If you have additional performance tweaks, please let me know.
+
 Note: Ω = ALT-234
 
 

diff --git a/TM1637.cpp b/TM1637.cpp
@@ -276,7 +276,7 @@ void TM1637::displayCelsius(int temp, bool colon)
   if (_digits != 4) return;
   for (int i = 0; i < 8; i++) _data[i] = TM1637_SPACE;  //  16
   _data[0] = 12;             //  C
-  _data[1] = TM1637_DEGREE;  //  ° degreee sign
+  _data[1] = TM1637_DEGREE;  //  ° degree sign
 
   if (temp < -9) temp = -9;
   if (temp > 99) temp = 99;
@@ -299,7 +299,7 @@ void TM1637::displayFahrenheit(int temp, bool colon)
   if (_digits != 4) return;
   for (int i = 0; i < 8; i++) _data[i] = TM1637_SPACE;  //  16
   _data[0] = 15;             //  F
-  _data[1] = TM1637_DEGREE;  //  ° degreee sign
+  _data[1] = TM1637_DEGREE;  //  ° degree sign
 
   if (temp < -9) temp = -9;
   if (temp > 99) temp = 99;

diff --git a/TM1637.h b/TM1637.h
@@ -55,7 +55,7 @@ class TM1637
   void displayRefresh();
   //  EXPERIMENTAL 0.3.8
   void hideSegment(uint8_t idx);
-  void hideMultiSegment(uint8_t mask); // 0 bit = show  1 bit = hide
+  void hideMultiSegment(uint8_t mask);  //  0 bit = show  1 bit = hide
 
 
   //  BRIGHTNESS