Make a talking electronic wizard hat

dcexpert

Make a talking electronic wizard hat [Copy link]

 

 

It looks a lot like the Sorting Hat from Harry Potter and the Sorcerer's Stone, but the resemblance is mostly superficial. However, it's simple enough to add the appropriate audio files to make it a one-eyed sorting hat. That eye is a full-color OLED screen that displays a moving graphic of an eyeball. There are also two animatronic features: a moving mouth and a twitching eyebrow. The hat is controlled via a program, but users can activate these programs using a key fob, like the kind you use to unlock your car door. The

ESP32-based development board controls the eyeball graphic, servo motors, and audio output. It displays the graphics on an SSD1351-driven OLED screen, which is 1.5 inches with a resolution of 128x128 and 16 bits of color on each pixel. Standard SG90 micro hobby servos drive the 3D-printed mouth and eyebrow mechanisms. The audio is output via an I2S audio board with a DAC (digital-to-analog converter) and amplifier to a small speaker, and the audio clips are stored on an SD card. The key fob sends commands to the ESP32 via a receiver module designed for this purpose.

https://www.hackster.io/news/build-your-own-talking-animatronic-wizard-s-hat-for-halloween-4f9cf94a00e8

https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/28328/episode-620-stey-by-step-guide-to-creating-your-own-speaking- animatronic-hat

lkh747566933

You can do it when you are bored, and maybe you can even sell it by putting it online!

okhxyyo

This is quite interesting. It is also quite fun to make it.

dcexpert

okhxyyo posted on 2023-9-21 11:44 This is quite interesting. It will be fun to make it

You can refer to the link of e-Network Alliance at the back.

dcexpert

lkh747566933 posted on 2023-9-21 11:01 If you are bored, you can do it. Maybe you can sell it if you put it online!

This feeling is still very interesting

极限零

It would be even better if it could generate electricity through vibration and automatically sleep when not in use.

wangerxian

Posted by Extreme Zero on 2023-9-21 14:17 It would be even better if it could generate electricity through vibration and automatically sleep when not in use

It is easy to make it sleep when not in use, but it is difficult to generate electricity by vibration.

极限零

wangerxian posted on 2023-9-21 15:07 Sleeping during non-use time is easy to do, but vibration power generation is difficult.

These two should be the same, right? How do you tell if it's not in use now? I understand it means it's been stationary for a long time (not vibrating). If it's vibration power generation, I wonder if you can refer to the power generation principle of the dance mat

wangerxian

Extreme Zero published on 2023-9-21 16:01 These two should be the same. How do you tell if they are not in use now? I understand that it means being stationary for a long time (not vibrating). If it is vibration power generation, I don't know if it is...

Is there any information about [Dancing mat power generation]? I couldn't find it online.

吾妻思萌

This is something, but the eyes are a bit scary

dcexpert

Azuma Simeng posted on 2023-9-21 17:52 This is something, but it's a bit scary to the eyes

This eye is also a classic creation of adafruit

极限零

wangerxian posted on 2023-9-21 16:53 Is there any relevant information about [Dancing mat power generation]? I didn’t find it online.

There is a lot of information. You can search for dance power generation and sports power generation on Baidu Encyclopedia. However, the power of vibration power generation is a bit small.

lkh747566933

dcexpert posted on 2023-9-21 12:37 This feeling is still very interesting

Then you can make one for fun. I don't like this hat.

秦天qintian0303

It would be even better if we could add gesture collection, so that different actions can mean different things.

damiaa

This hat is very useful when you put it on a scarecrow and then command the scarecrow to wave the flag.

freebsder

This is interesting. My daughter will probably like it very much.