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☀ An omnidirectional robot is able to drive in any direction due to its omnidirectional wheels, as the omnidrive enables the robot to change direction instantly without having to turn the wheels.

☀ This omnidirectional robot is controlled by an ESP32-S2 with lots of sensors and an OV2640 camera on board

Find more details at:  https://www.youtube.com/@makermoekoe 

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☀ This watch displays the current time in the base-two number system.

☀ The row at the bottom of the watch represents the least significant bit (1) and the row at the top is the most significant bit (8). Each column represents a digit in the hh:mm time format. If an LED is ON, you count that value. If an LED is OFF, you ignore it.

☀ To read the first digit, sum all the activated LEDs corresponding values in the first (left most) column. Do the same for the other digits from left to right. You have now read the time in BCD!

Find more details at:  https://www.instructables.com/PCB-Binary-Watch/ 

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Have you ever tried to modify an existing RC car?

Parikshit Pagare made an Arduino Uno-powered robot car that can be controlled manually, by voice, or operate autonomously. These modes are all enabled through an Android app.

Features:
Wireless control with Bluetooth
Dedicated Android app

Manual control using buttons on app
PWM-based 3 levels of motor speed control.

Ultrasonic sensor-based autonomous mode with direction display on the app.

Voice control using Google Speech Recognizer along with obstacle detection feature to avoid a collision.

Find more details at :  https://github.com/parikshitpagare 

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This is a cyberdeck built around a Raspberry Pi 400, an 7" screen, and a power bank.

The complete list of tools you will require to make on your own:

2020 Aluminium extrusion x4
7″ HDMI screen 1024×600
Raspberry pi 400
Power bank board
Samsung tablet battery
HDMI ribbon cable
PAM8403 3W amp board
Speaker
USB C cable x2
3.5mm male to male audio cable
M6 bolts x8
M6 gopro nuts and bolts x4
3D printing parts

Find more details at:
 https://facelesstech.wordpress.com/ 

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You might have used an oscilloscope before, but was it smaller than this?

This Arduino-based oscilloscope is made by Ken Kawashima.

Specifications:
Vertical sensitivity (value per full scale)
fixed range: 50V, 20V, 10V, 5V, 2V, 1V, 0.5V, 0.2V
Auto range: 50V, 5V (so that the waveform is displayed as large as possible)
50ms, 20ms, 10ms, 5ms, 2ms, 1ms, 500us, 200us automatically at 1/2 level of trigger 　
Waveform PP Trigger.
Trigger slope UP/DOWN can be specified.

The waveform is displayed even if the trigger is not detected, and the trigger detection failure is displayed (displayed as unsync)

Find more details at:  https://www.youtube.com/channel/UCbfH... 

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In this setup, Vaclav Krejci displays smooth filling gauges on a 16x2 OLED connected to an Arduino without using custom characters.

Many 16x2 LCDs feature a built-in backlight, typically in the form of LED (Light Emitting Diode) or EL (Electroluminescent) backlight.

This backlighting enables the display to be readable even in low-light conditions. The backlight is usually controlled separately from the actual characters on the display.

Find more details at: github.com/upiir

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This is a 2 in 1 deformation quadcopter and motorcycle.

This drone features dual cameras, including a wide-angle lens, as well as dual lights.

It incorporates an Optical Flow function for improved image stability.

The drone also offers a hand gesture feature for easy camera switching and selfie capture.

Other features:
Follow Me
HD Wide Angle Lens
Auto Return
Headless Mode
Roll 360 Flights
Speed Switching
Master Mode
Gesture Photography
Emergency Stop

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Do you prefer pocket-sized or regular-sized laptops/computers?

This portable computer made by Daniel Norris' has just 10 keys. The computational power is provided by a Raspberry Pi 4 Model B while a 5" touchscreen allows for easy navigation.

The tiny computer gets its power from an array of six 18650 lithium battery cells through an AmpRipper 4000 power supply.

Find more details at:  https://github.com/a8ksh4/chonky-pocket 

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This is Eachine Nano LR3, an FPV racing drone built around standard 18650 Lithium-Ion batteries as its power source.

Features：
Super light 3-inch 2S nano long-range quad, suitable for long-range cruising

It can carry naked GoPro / Insta360 go2 for HD video filming

Pre-installed GPS and equipped with the return to home feature.

Albert Kim gave a detailed review of the drone on his Youtube channel. You can check the video here:
 https://youtu.be/-s1aJUlIc_M 

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☀Scott Lawrence created an Arduino Leonardo-based system for converting a collection of slides to digital photos with a modern DSLR camera.

☀The user interface, made with a six-digit seven-segment display and a rotary encoder, lets the operator set up the number of slides to capture, the pause between slides, backlight brightness, and so on.

☀When activated, the controller tells the carousel to load a slide, triggers the camera’s shutter, and then repeats with the next slide.

☀Each slide only takes a few seconds to load and capture, which means this can digitize more than a thousand slides per hour.

Find more details at:  https://www.youtube.com/@yorgle 

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