# Trying to wrangle serial data from an Arduino

**URL:** <https://discourse.processing.org/t/trying-to-wrangle-serial-data-from-an-arduino/32720>\
**Category:** Electronics (Arduino, etc.)\
**Created:** [October 10, 2021, 3:28am UTC](https://discourse.processing.org/t/trying-to-wrangle-serial-data-from-an-arduino/32720 "2021-10-10T03:28:41Z")\
**Posts on this page:** 1\
**Showing post:** 18

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**Author:** ![GoToLoop](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/gotoloop/32/86_2.png) [@GoToLoop](https://discourse.processing.org/u/GoToLoop)\
**Post date:** [October 12, 2021, 12:13am UTC](https://discourse.processing.org/t/trying-to-wrangle-serial-data-from-an-arduino/32720/18 "2021-10-12T00:13:55Z")

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> [@Using two different readStringUntil "characters"](https://discourse.processing.org/t/using-two-different-readstringuntil-characters/10769/6):
>
> The solution I gave on that link expects the Arduino C code to send the multi-data as if they were a row of tab-separated values (TSV): face_with_monocle That is, each value is followed by a \t character; except last 1, which is followed by an \n instead: nerd_face Serial.print(temperature); Serial.write('\t'); Serial.print(masse); Serial.write('\t'); Serial.print(humidite); Serial.write('\t'); Serial.print(comptage); Serial.write('\t'); Serial.println(son); // implies '\n' At the Pro…

> [@Using two different readStringUntil "characters"](https://discourse.processing.org/t/using-two-different-readstringuntil-characters/10769/23):
>
> Now that it seems all’s been sorted out, how about some optimization? The range [-10 to 10] is so small (5-bit) that it comfortably fits in a byte (8-bit). So, rather than send those 2 small values as TSV, w/ lotsa extra separator characters, we can simply send 2 bytes only using Serial.write(): [https://www.Arduino.cc/reference/en/language/functions/communication/serial/write/](https://www.Arduino.cc/reference/en/language/functions/communication/serial/write/) We just need to create a char array of length = 2: signed char xy[2]; #define BAUDS 115200 #define DELAY 10 #define…

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