从python程序发送的RGB数据没有被arduino正确接收

Question

我正在开发 twitter 情绪灯，并拥有 arduino 和 python 代码。在丢失了我所有的 python 代码之后，它不得不从内存中重新制作它，但我遇到了一些问题。 python 代码将 rgb 数据发送到 arduino 以更改 rgb LED 的颜色。但由于某种原因，arduino 没有获取最后一个值，而是将第二个值更改为蓝色 LED。

例如：我发送了 50,50,50，这是一个暗白色，并且 LED 显示紫色（蓝色和红色），如果我发送 0,0,255（蓝色）它保持空白，如果我发送 0,255,0 （绿色亮起）它显示为蓝色。

我不知道已经尝试了这么多事情来让它发挥作用。

Python 代码： 我知道我要发送两次数据，这是发送功能起作用的唯一方式

from __future__ import division
import time
import csv
import serial
from TwitterAPI import TwitterAPI

# [angry, happy, sad]
emotion = [0,0,0]

# [R,G,B]
owe = "Nothing"
blinking = 0
BlinkIO = False
ecount = 0
mad = 0
sad = 0
happy = 0
love = 0
scared = 0
envy = 0
suprise = 0
off = (0,0,0)
cmad = (255,0,0)
csad = (0,255,0)
chap = (255,255,0)
clov = (255,0,255)
cscr = (255,255,255)
cenv = (0,255,0)
csup = (50,50,50)
omad = 0
osad = 0
ohap = 0
olov = 0
oscr = 0
oenv = 0
osup = 0
# number of times colour has been logged
count = 0

# delay between each log
delay = 60
blinkDelay = 1
# sets timer
timeout = time.time() + delay
blinktimer = time.time() + blinkDelay
#Boolean value for if Arduino is connected
connected = False

#Serial connection setup
ser = serial.Serial("COM3", 9600)

# Twitter API setup
TRACK_TERM = "i love you, i love her, i love him, all my love,i'm in love,i really love,happiest,so happy,so excited, i'm happy,woot,w00t,wow,O_o,can't believe,wtf,unbelievable,i hate,really angry,i am mad,really hate,so angry,i wish i,i'm envious,i'm envious,i'm jealous,i want to be,why can't i,i'm so sad,i'm heartbroken,i'm so upset,i'm depressed,i can't stop crying,i'm so scared, i'm really scared, i'm terrified,i'm really afraid,so scared"


# KEEP SECRET
CONSUMER_KEY = ''
CONSUMER_SECRET = ''
ACCESS_TOKEN_KEY = ''
ACCESS_TOKEN_SECRET = ''

api = TwitterAPI(
    CONSUMER_KEY,
    CONSUMER_SECRET,
    ACCESS_TOKEN_KEY,
    ACCESS_TOKEN_SECRET)

# Emotion algorithm
def send (emotion):
    serialColour = ','.join(map(str,off))
    ser.write(serialColour.encode())
    print "sent off"
    time.sleep(0.1)
    serialColour = ','.join(map(str,emotion))
    serv = serialColour.encode()
    print serv
    ser.write(serv)
    print "Sent once"
    time.sleep(1)
    ser.write(serv)
    print "Sent twice"
def sendBlink(emotion):
    serialColour = ','.join(map(str,emotion))
    ser.write(serialColour.encode())
def percentage(mood):
    output1 = mood / ecount
    output2 = output1 * 100
    output3 = int(output2)
    print output3
    return output3
def Calc_Change(per,old):
    if per == 0 and old == 0:
        print 0
        return 0
    elif old == 0 and per >= 0:
        print per
        return per
    elif per < old:
        out1 = old / per
        out = out1 - out1 - out1
        print out
        return out
    else:
        out = per / old
        print out
        return out
def ColorCalc(emotion,colorval):
    global color
    global BlinkIO
    if emotion >= 2:
        BlinkIO = True
        color = colorval
        print "Large change detected"  
        return True

    else:
        BlinkIO = False

        return False

#MAIN PROGRAM
emo = (csup)
send(emo)
value = ser.read(11,5)
print value
time.sleep(2)
send(off)
r = api.request('statuses/filter', {'track': TRACK_TERM})

for item in r: # for each tweet
    if time.time() > blinktimer and BlinkIO == True:

        print blinking
        if blinking == 0:
            blinking = 1
            send(color)
            print "blink on"
        elif blinking == 1:
            blinking = 0
            send(off)
            print "blink off"
    blinktime = time.time() + blinkDelay
    if time.time() > timeout: # If time elapsed
        print "Percentages"
        pmad = percentage(mad)
        psad = percentage(sad)
        phap = percentage(happy)
        penv = percentage(envy)
        psup = percentage(suprise)
        pscr = percentage(scared)
        plov = percentage(love)
        print "Change"
        fmad = Calc_Change(pmad,omad)
        fsad = Calc_Change(psad,osad)
        fhap = Calc_Change(phap,ohap)
        fenv = Calc_Change(penv,osad)
        fsup = Calc_Change(psup,osup)
        fscr = Calc_Change(pscr,oscr)
        flov = Calc_Change(plov,olov)
        emotions = {'mad' : fmad, 'sad' : fsad, 'happy' : fhap, 'envy' : fenv, 'suprise' : fsup, 'scared' : fscr, 'love' : flov}
        we = max(emotions,key=emotions.get)
        print "the world's mood is: " + we
        if we == owe:
            print "Same emotion"
        else:
            if we == 'mad':
                blinkI = ColorCalc(fmad,cmad)
                if blinkI == False:
                    send(cmad)

            elif we == 'sad':
                blinkI = ColorCalc(fsad,csad)
                if blinkI == False:
                    send(csad)

            elif we == 'happy':
                blinkI = ColorCalc(fhap,chap)
                if blinkI == False:
                    send(chap)

            elif we == 'envy':
                blinkI = ColorCalc(fenv,cenv)
                if blinkI == False:
                    send(cenv)

            elif we == 'suprise':
                blinkI = ColorCalc(fsup,csup)
                if blinkI == False:
                    send(csup)
            elif we == 'scared':
                blinkI = ColorCalc(fscr,cscr)
                if blinkI == False:
                    send(cscr)
            elif we == 'love':
                blinkI = ColorCalc(flov,clov)
                if blinkI == False:
                    send(clov)
        owe = we
        omad = pmad
        osad = psad
        ohap = phap
        oenv = penv
        osup = psup
        oscr = pscr
        olov = plov
        love = 0
        scared = 0
        suprise = 0
        sad = 0
        mad = 0
        happy = 0
        envy = 0
        ecount = 0
        timeout = time.time() + delay #resets timer

    #Manipulates tweet to add to emotion counter    
    leitem = item['text'] if 'text' in item else item # select tweet text

    if ('i hate' or 'really angry' or 'i am mad' or 'really hate' or 'so angry') in leitem: # if tweet contains angry
        mad += 1
        ecount += 1
        print "mad"
    if ('happiest' or 'so happy' or 'so excited' or "i'm happy" or 'woot' or 'w00t' )in leitem: # if tweet contains happy but not 'not happy'
        happy += 1
        ecount += 1
        print "happy"
    if ("i'm so sad" or "i'm heartbroken" or "i'm so upset" or "i'm depressed" or "i can't stop crying") in leitem: 
        sad += 1 # add 1 to sad count
        ecount += 1
        print "sad"
    if ('i love you' or 'i love her' or 'i love him' or 'all my love' or "i'm in love" or 'i really love') in leitem:
        love += 1
        ecount += 1
        print "Love"
    if ('wow' or 'O_o' or "can't believe" or 'wtf' or 'unbelieveable') in leitem:
        suprise += 1
        ecount += 1
        print "suprise"
    if ('i wish i' or "i'm envious" or "i'm jealous" or 'i want to be' or "why can't i") in leitem:
        envy += 1
        ecount += 1
        print "envy"
    if ("i'm so scared" or "i'm really scared" or "i'm terrified" or "i'm really afraid" or "so scared") in leitem:
        scared += 1
        ecount += 1
        print "scared"




ser.close()

Arduino 代码：

byte Red = 6;
byte Blue = 9;
byte Green = 3;
void setup() {
  // put your setup code here, to run once:
  pinMode(Red,OUTPUT);
  pinMode(Blue,OUTPUT);
  pinMode(Green,OUTPUT);
  Serial.begin(9600);
  analogWrite(Red,0);
  analogWrite(Blue,0);
  analogWrite(Green,0);
}

void loop() {
  // put your main code here, to run repeatedly:
  if (Serial.available() > 0){
    String string = Serial.readStringUntil('\n');

    int comma1 = string.indexOf(',');
    int comma2 = string.indexOf(',');
    int none = string.indexOf('\n');
    String first = string.substring(0,comma1);
    String second = string.substring(comma1 + 1,comma2);
    String third = string.substring(comma2 + 1, none);

    int r = first.toInt();
    int g = second.toInt();
    int b = third.toInt();

    Serial.print(string);
    analogWrite(Red,r);
    analogWrite(Green,g);
    analogWrite(Blue,b);
  }
}

所有这些代码都是从其他代码编辑的或基于它的，因此在 python 程序中存在的 cmets 没有任何意义
另外，我需要这个项目在 arduino 日（4 月 1 日）之前完成 提前非常感谢你

Answer 1

愚蠢的错误。我让第二个逗号索引正好在 arduino 代码中第一个逗号索引的位置（哎呀）