DIY fan PK competition is now open! Students who want to practice power supply please come in~~

okhxyyo

DIY fan PK competition is now open! Students who want to practice power supply please come in~~ [Copy link]

In the hot summer, let's fan it! EEWorld invites you to participate in the fan DIY PK competition!

Event time: From now until August 31

How to play DIY PK competition?

Step 1 : Sign up for the competition by following this post, stating the functions you want to DIY the fan, and set a flag!

Step 2 : Share your DIY process in the power technology section of the forum (it can be schematics, PCB, assembly process, function demonstration, etc.)

References :

Before starting the PK competition, we also made sufficient preparations and invited forum user @藍天使to provide a DIY fan solution. If you don’t have any ideas at the beginning, you can look at the information first and discuss any questions at any time.

>>>>>>Click here to view the open source information of DIY small fan

Welfare Benefits :

Super benefit: Enthusiastic forum engineers will give suggestions or opinions on your design. Unknowingly, you will practice power supply technology in the discussion.

In-kind encouragement: After the event, we will select the following awards

Excellent DIY Award 1-3 Prize: Komax (Lithium Drill Model) Warrior Set (selected by netizens participating in DIY PK)

Careful Thinking Award 3-5 Prize: Xiaomi Power Bank (selected from the discussion on DIY small fan open source)

Active Participation Award 5 Prizes: EEWorld commemorative T-shirt (selected from all netizens who participated in the event)

yang_alex

This is such a fun DIY, why is no one signing up? Take some time to participate.

xutong

1. Use semiconductor cooling sheet + fan to lower the temperature, blowing the person's side is cold, and the hot side is blown back

2. Temperature detection linkage, wear a temperature measuring bracelet on your arm, and the air will stop blowing when the temperature is below a certain value

3. The water pipe surrounds the fan, and the semiconductor cooling sheets are placed on both sides, one side is for heating and the other side is for heat dissipation. If you want to blow cold air, you can blow cold air, and if you want to blow hot air, you can blow hot air.

5. Ambient temperature detection

okhxyyo

xutong published on 2022-8-8 09:36 1. Use semiconductor cooling sheet + fan to lower the temperature, blowing on the side of the person is cold, and blowing the hot side backwards 2. Temperature detection linkage, wear a temperature measurement bracelet on the arm...

This is interesting, let’s do it!

xutong

okhxyyo posted on 2022-8-8 09:38 This is interesting, you can do it!

See if you have some spare time

okhxyyo

xutong posted on 2022-8-8 10:02 See if you have some spare time

hxm3000

On the basis of the small fan, it is possible to add a temperature measurement function, such as infrared temperature measurement. '

If the temperature of a person exceeds the set value, the fan will automatically turn on, and the wind speed will be selected according to the temperature. It will automatically stop when it is cool. This prevents you from falling asleep and catching a cold from the wind. Haha,

Take time to practice