多变量Arduino的Python接口 [英] arduino python interface with multiple variables

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本文介绍了多变量Arduino的Python接口的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我想要把所有的时间改到我的Python接口3传感器变量。

I want to bring 3 sensor variables that change all the time to my python interface.

我与这个测试code尝试,它不工作,我究竟做错了什么?

I am trying with this test code, it does not work, what am I doing wrong?

Arduino的:

void setup() {
  Serial.begin (9600);
}

void loop() {
  Serial.print(random(1,3)); 
  Serial.print(random(3,5));
  Serial.print(random(5,7)); 
}

的Python:

Python:

canvas.create_text(190, 150, text=ser.readline(1), fill="gray", font="Helvetica 45 bold",tag="T1")

我怎样才能得到多个变量更新所有的时间?现在我刚开第一位的,它没有更新

How can I get multiple variables updating all the time? right now I am just getting the first one, and it is not updating

推荐答案

为什么要使用的readline 函数读取只是一个字节?由于需要多个值,用(例如)一个空格,然后使用的readline 来存储所有这些,拆分将它们分开:

Why are you using the readline function to read just one byte? Since you want multiple values, separate the variables with (for instance) a space, then use readline to store them all and split to separate them:

PS:注意,最后一个实际上是一个的println

PS: note that the last one is actually a println

Arduino的:

void loop() {
  Serial.print(random(1,3));
  Serial.print(" "); 
  Serial.print(random(3,5));
  Serial.print(" ");
  Serial.println(random(5,7)); 
}

的Python:

Python:

allitems=ser.readline()
separateditems=allitems.split();
canvas.create_text(190, 150, " - ".join(separateditems), fill="gray", font="Helvetica 45 bold",tag="T1")

在这个例子中,我把项目中的 separateditems 列表(让 separateditems [0] 等于随机的(1,3) separateditems [1] 等于随机(3,5- ) separateditems [2] 等于随机的(5,7))。后来我加入了他们,以显示随机的(1,3) - 随机的(3,5) - 随机的(5,7)。反正你可以做任何你想要收集的数据。

In this example I put the items in the separateditems list (so separateditems[0] is equal to random(1,3), separateditems[1] is equal to random(3,5) and separateditems[2] is equal to random(5,7)). Then I joined them to display "random(1,3) - random(3,5) - random(5,7)". Anyway you can do whatever you want with the collected data.

那么我强烈建议你把一个延迟循环里面,以避免发送太多的数据。我建议把一个延迟(100); 末或者,如果你需要做其他的事情在等待,看弹跳刻不容缓的例子

Then I HIGHLY suggest you to put a delay inside the loop, to avoid sending too many data. I suggest putting a delay(100); at the end or, if you need to do other things while waiting, see the "Bounce without delay" example.

这篇关于多变量Arduino的Python接口的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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