NodeMCU API Sketch With 5 Temp and 1 Humidity Sensor, and 4 Line LCD Panel Example

[sirbooker]

Thank you for sharing this.
Paul.

[labbie48]

I'm a noob at this but have gotten 4 sensors to work. Use them for outdoor and indoor temperatures that trigger events. I'd like to sense the temperature every 5 minutes so I'd have to use a delay(300000) where in your code would I place this? After each sensor or just after the last one?

[bdraper]

I'm a noob at this but have gotten 4 sensors to work. Use them for outdoor and indoor temperatures that trigger events. I'd like to sense the temperature every 5 minutes so I'd have to use a delay(300000) where in your code would I place this? After each sensor or just after the last one?

You really can't put in a delay and have the plug-in work correctly, there are ways around this and it is talked about in the manual for the plug-in.

Wit that said, alter this line in the code and adjust it to your needs.. Good luck on your project.

const long interval = 5000; // interval at which to blink (milliseconds) 5 seconds

[labbie48]

I can live with it the way it is but why does one of my 18B20's bounce between the actual temperature and -196F ?

[langenet]

Bill,
I thought about dusting off my NodeMCU which I purchased a over a year ago now to just display a couple of lines of sump pump activity in my basement. I believe these devices operate on 3.3v. But the display needs 5 volts to work. I was hoping to use a spare cell-phone charger/adapter. Do I need a separate power source for my 2-line display? As well, which sketch do you use which has the wifi and networking stuff?

Thanks,

Robert

[thomauto@aol.com]

Bill,
I thought about dusting off my NodeMCU which I purchased a over a year ago now to just display a couple of lines of sump pump activity in my basement. I believe these devices operate on 3.3v. But the display needs 5 volts to work. I was hoping to use a spare cell-phone charger/adapter. Do I need a separate power source for my 2-line display? As well, which sketch do you use which has the wifi and networking stuff?

Thanks,

Robert

On my NodeMcu/ LCD setup its powered by the USB connector and I connected the LCD to the Vin pin, I used a I2C type LCD.