Automatics & Robotics & Arduino

Репост из: 3D models and printing

How smart is your cat?
This treat dispenser is an easy way to feed and entertain your cat when you're not at home. The box is triggered by a pad that detects a change in capacitance when touched. This makes it very sensitive to little paws, and can be easily repositioned it to make it easier or more challenging for your cat to trigger.
This project uses readily accessible household materials and a handful of electronics to create an interactive toy that your cat (or dog) will enjoy. This treat dispenser can be a good way to exercise your kitty's brain or as a proxy measure of their feline IQ.
https://learn.adafruit.com/automatic-cat-treat-dispenser

⭕️Every electrical engineer needs a soldering iron and a couple of other tools for creating projects. Here they are!⭕️

▪️All tools together - 30+ items!
4.7🌟
http://ali.pub/4cpqrc

▪️Programmable Soldering Iron TS100 (65W)
4.7🌟
http://ali.pub/4cpqkj

▪️Cheap Soldering Iron
4.8🌟
http://ali.pub/4cpqvt

▪️Third hand
4.8🌟
http://ali.pub/4cpqun

▪️Mulimeter Richmeters 102
4.9🌟
http://ali.pub/4cpqy5

▪️Hot glue gun, 20W
4.9🌟
http://ali.pub/4cpqep

⬇️SAVE POST⬇️

🚦 Make Custom LED Strips
I recently made an infinity mirror cube and I wanted to have it be a specific size with a specific number of LEDs. None of the LED strips that I could find had the correct characteristics for what I wanted, so I made my own. These strips are not flexible, but that wasn't necessary for my project. The basis for these strips are custom designed circuit boards. I didn't make the boards myself, but I did design them. This Instructable is about the process of assembling these strips after I received them.
https://www.instructables.com/id/Make-Custom-LED-Strips/

🌟 Doorbell With Face Recognition

The doorbell system is mainly designed for elderly or vision-impaired persons and is pretty straight-forward in its workings. In short, the doorbell switch triggers the camera to obtain footage. Next, faces in the footage are detected and matched with a whitelist and blacklist. The occupant gets clear visual feedback by a clear traffic light display. Hereby, the green, yellow or red light indicate that the person(s) are on the whitelist, unknown to the system or on the blacklist respectively. If the yellow or red light is triggered, the photo is sent by a Telegram bot to inform/warn a relative or caretaker.

https://www.instructables.com/id/Doorbell-With-Face-Recognition/

🤯 Freeform LED Sphere 🤯

My Christmas project is done! Everybody is crazy about LED cubes. I wanted to create one myself, but I wanted to make it an even bigger challenge and since I am not limited by the use of circuit boards, I've decided to make an LED ball.

It took me 24 hours to solder and one long night to finish. But it was worth it. It's nice when lit and even nicer when not. Enjoy!

https://www.instructables.com/id/Christmas-LED-Sphere/

📊Arduino RGB Color Picker – Pick Colors From Real Life Objects

Easily pick colors from physical objects with this Arduino based RGB color picker, enabling you to recreate the colors you see in real life objects on your pc or mobile phone. Simply push a button to scan the color of the object using a cheap TCS34725 colour sensor module and you’re given the RGB color values as well as an indication of the measured color on an RGB LED.


https://www.instructables.com/id/Arduino-RGB-Color-Picker-Pick-Colors-From-Real-Lif/

DIY Image Sensor and Digital Camera
There are many tutorials online about building your own film camera, but I don't think there are any about building your own image sensor! Off the shelf image sensors are available from a lot of companies online, and using them would make designing your own digital camera not super difficult(but still very hard!). I wanted to take it to the next level and use only simple components, break it down to the most basic parts, so that you're controlling every aspect of the design and programming.
https://www.instructables.com/id/DIY-Image-Sensor-and-Digital-Camera/

Adjustable Double Output Linear Power Supply


Features:

AC – DC Conversion Double output voltages (Positive – Ground – Negative)
Adjustable positive and negative rails
Just a Single-Output AC transformer
Output noise (20MHz-BWL, no load): Around 1.12mVpp
Low noise and stable outputs (ideal to power Opamps and Pre-amplifiers)
Output Voltage: +/-1.25V to +/-25V Maximum output current: 300mA to 500mA
Cheap and easy to solder (all component packages are DIP)

https://www.instructables.com/id/Adjustable-Double-Output-Linear-Power-Supply/

Anet A8 Plus 3D Printer

Upgraded Printing Size & Operation Method:

Printing size is enlarged to 300*300*350mm, and large enough to satisfy your creativity; the magnetic movable LCD control panel and convenient knob type control design make your operation more efficient and more flexible.


Upgraded Material & Structure:

Consist of more durable aluminum alloy frame; the Y axis is designed with double polished rods, and the Z axis with double threaded rods, which to achieve a breakthrough and upgrade of the structure and movement stability; the tightness of Z axis and Y axis belts can be freely adjusted and are more convenient to use.


Upgraded Heatbed & Mainboard:

Aluminum substrate heatbed comes with a glass panel, so that the printing is smooth without sharp edge and the model is easy to remove; the mainboard is added designs of over-current protection and short-circuit protection, with smaller current configuration, safer and more reliable.


Upgraded Filament Loading & Extruder Structure:

Added automatically loading and unloading filament function, which is very easy to add or exchange filament.Using the patented extruder structure, the filament extruding is more smooth without clogging. Direct filament loading improves printing effect of TPU filament.


Wide Compatibility and Application:

Compatible with various 1.75mm printing filaments like PLA, ABS, HIPS, TPU, wood, etc; widely used in architecture, medical, home decoration, industry, education, movie and other many fields.



There are 2 options:

Full-DIY (DIY A8 Plus)option: All parts are unassebled;

Semi-DIY (Pre-assemable A8 Plus)option: Main body is assebled.

*If you are good at handworks, you could choose the Full-DIY option, if not, please choose the Semi-DIY option, which will save you more work.

http://ali.pub/4bg15r