![]() ![]() Here’s Arduino Serial Write Syntax: Serial.write ( ‘DataSent’ ) where: DataSent is a simple byte and is used in these characters ‘ ‘. Use the function below to have a maximum of two decimal places. Arduino Serial Write Syntax 1: Arduino Serial Write is used to write some data on the Serial Port and it sends data in binary form. If you find that there are too many digits, you can round the floating point value. How to reduce the number of decimal places? It uses the same notation if the value is very small (below 1e-5). When the value is very large (above 1e7), ArduinoJson switches to the scientific notation and adds an exponent to the value. It uses up to 9 decimal places this is a limitation of the lightweight float-to-string algorithm. This behavior differs from Serial::print() which uses a fixed number of decimal places.ĪrduinoJson uses as few digits as possible: it doesn’t add trailing zeros. When you call serializeJson(), ArduinoJson converts each floating point value into a string with a variable number of decimal places.
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