This is error ,I got.
And this is the code is written…
setChartLibrary(‘google-chart’);
setChartTitle(‘Buzzer ON?OFF’);
setChartType(‘lineGraph’);
setAxisName(‘TIME’,‘BEEP’);
plotChart(‘time_stamp’,‘BEEp’);
singleButton({name:“Buzzer On”,action:“digitalWrite”,pin:“0”,value:“HIGH”,bgcolor:“green”,shape:“circle”,align:“center”,“text_color”:“white”
})
singleButton({name:“Buzzer off”,action:“digitalWrite”,pin:“0”,value:“LOW”,bgcolor:“green”,shape:“circle”,align:“center”,“text_color”:“white”
})