i sent 64 in a string , to get the number i choose to use [image] String indexOf() and lastIndexOf() Method | Arduino Documentation Look for the first/last instance of a character in a string. the problem serial.println (thedata) resluts in 46 78 results …

64 = 46 and 78 is 52 ????

TomGeorge October 22, 2017, 10:19am 2

Hi,
Try this link.

Its about serial comms with the Arduino.

Tom..