matrix mini clock with alarm, thermometer and hygrometer

   After some time, I update project "mini clock" with DHT sensor, schematic is now

  

  Because, I realize in original program I haven't all characters I need, I "reverse engineer"-ing  file with characters using Hexadecimal to Binary Converter to made new charactes:

So, character are vertical and from up to down. so I design my characters:

     Now, my character file has new characters 😆

   For not be problems, I remane my file as and put near original file

So, for testing, I simulate al cases:

- low humitity (< 10%)

- normal humidity 

- 2-digit negative temperature:

- 1-digit negative temperature:

- 1-digit positive temperature:

- 2-digit positive temperature:

   Using my /mini_clock_1_3 sketch, I made matrix mini clock with alarm, thermometer and hygrometer

    I use DHT22 (AM2302) sensor so sketch is

and if you have DHT11 just change to

   I use RTC with DS3231, but work without changes with DS1307 (note; DS3231 is more accurate than DS1307)....