TM1637 4 LED Display testing using arduino library. first trial after unboxing
For one of my recent projects required 4Digit LED display
to display TDS of water.(Automatic RO with TDC controlling feature project)
i used 16 X 2 LCD display previously but to reduce cost & size i decided to discover other opetion.
& i found this nice littele chip on internet and purchased it from AliExpress below 1 $.
You can buy from : https://s.click.aliexpress.com/e/cA44...
Hope this will usefull four other people.