[Gizwits Gokit 3 Review] Part 4: Temperature and humidity monitoring and computer power on and off

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[Gizwits Gokit 3 Review] Part 4: Temperature and humidity monitoring and computer power on and off [Copy link]

 

 

1. Introduction

After the network access is successful, you need to start data communication. First, you need to modify the data points and add the following three data points. One is used to control the computer switch, and the other is used to obtain temperature and humidity. Since the board has its own temperature and humidity sensor, you can get it directly.

2. Design

First, enter the previous project and add data points, as shown in Figure 1 below.

Figure 1

Then just download the source code.

Figure 2

First add the dht library. I found one on the Internet and can call it directly.

Figure 3

Then, as in the previous article, comment some LOGs and add variables as shown in the figure below.

Figure 4

Initialize the motor pins. You will need to replace them with servos later and use them to control the computer switch buttons.

Figure 5

The pin for observing temperature and humidity is D3 port. At the same time, add the following code in the loop to obtain temperature and humidity + detect computer switch events and respond.

Figure 6

Finally I downloaded the program and used my phone to check it. There was another pitfall here. I had my own usual phone and when I opened the software it actually restarted my phone. Also, I had to reinstall the software after modifying the data points . Finally I changed to a spare phone and everything worked fine. Anyway, this is how I solved the problem of incorrect data points.

Figure 7

Figure 8

Finally, let’s take a look at the power consumption. As shown in Figure 9 below, 110mA is a bit high. Next time, we will try the low power consumption mode.

Fig. 9

3. Summary

I encountered some problems this time, but I finally solved them. I hope you won't get stuck when you encounter these problems! I will continue to update when I have time, including low power consumption and servo control.

Jacktang

It is better to use the onboard temperature and humidity sensor to obtain it directly. Thanks for sharing.

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Jacktang posted on 2021-3-21 21:03 It is better to use the onboard temperature and humidity sensor to obtain it directly, thank you for sharing

The temperature and humidity sensor on board is used.

freebsder

The interface is ok

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freebsder posted on 2021-3-22 22:06 The interface is ok

It's OK, the Android source code is open source, so we can make a better interface~

仙景

Awesome, come and support us

littleshrimp

Are the temperature 26 and humidity 14% the real values?

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littleshrimp posted on 2021-5-9 09:13 Is the temperature 26 and humidity 14% the real value?

Yes, do you think the humidity is a bit low? Because I am in the north~

littleshrimp

w494143467 posted on 2021-5-9 13:16 Yes, do you think the humidity is a bit low? Because I am in the north~

This is too low in the north.

w494143467

littleshrimp posted on 2021-5-9 13:50 This is too low in the north

Haha, I'm used to it. I'm still in the coastal area, not in the coastal areas!

littleshrimp

w494143467 published on 2021-5-9 15:22 Haha, I'm used to it. I'm still in the coastal area, not in the coastal areas!

I looked at the time and it should be because you had the heating on at that time.

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littleshrimp posted on 2021-5-9 18:58 I looked at the time and it should be related to the heating at that time

There should be heating at this time, but it is also relatively dry without heating, basically around 20%

littleshrimp

What's the humidity now?

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littleshrimp posted on 2021-5-10 11:01 What is the humidity now?

Today's weather forecast: Humidity 37%

littleshrimp

w494143467 posted on 2021-5-10 13:56 Today's weather forecast humidity is 37%

Almost like mine

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littleshrimp posted on 2021-5-10 15:35 It's similar to mine

Which city is the boss in?

littleshrimp

w494143467 posted on 2021-5-10 17:21 Which city is the boss in

Last night in Dalian, I used sensory.box to measure 21.5 40%

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littleshrimp posted on 2021-5-10 17:38 Last night in Dalian, I used sensorile.box to measure 21.5 40%

The humidity in Dalian, haha, I've been there once, it was so humid, but as you go inland, the humidity drops.