Acrobatic Open-Source Robot, DIY Electric 3D Scanning Turntable, Transparent Arduino UNO Board

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Dance Robot Acrobot

Acrobatic Open-Source Robot, DIY Electric 3D Scanning Turntable, Transparent Arduino UNO Board | DF Maker Weekly (Issue 122)

Acrobot is a structurally simple yet highly expressive four-joint robot developed by Daniel Simu. Let’s take a look at its performance on the American version of “America’s Got Talent”.

Now, the author has attempted to open-source this project, allowing us to create and assemble it ourselves, and control this unique robot through software.

The project provides detailed resources, including:

3D model files: including 3D models of the robot’s body, shoulders, hips, hands, and feet, which you can print using a 3D printer. It is recommended to use PLA material for the body and TPU98A for the shoulders, hips, hands, and feet to achieve better flexibility.
Electronic components: The project recommends using DFRobot’s 6Kg 300° clutch servo as the motor, the TTGO-T18 ESP32 development board, and a 18650 battery. Additionally, you will need some screws, nuts, and bolts to assemble the robot.
Bottango software configuration: Bottango is a powerful animation control software. The project provides Bottango project files and firmware for the ESP-NOW Dongle, making it easy to connect your computer to the robot and control its movements.

Although the project currently does not provide very detailed assembly instructions, you can refer to the schematic and PCB Gerber files in the project, or design the circuit yourself.

GitHub link: https://github.com/hapiel/workshop_bot

Transparent Arduino UNO Board

I just saw a transparent Arduino UNO board on Reddit, very cool! This board retains all the functions and compatibility of the original Arduino UNO. The transparent design is not only aesthetically pleasing but also very suitable for teaching, especially for helping beginners understand circuit wiring and connections. It allows students to visually see the internal components and connections of the circuit board, which is very helpful for learning and understanding circuit principles.

Source: https://www.reddit.com/r/arduino/comments/1j8riqv/do_you_like_this_transparent_uno/

DIY Electric 3D Scanning Turntable

This maker project demonstrates how to create a motorized rotating platform for smartphone 3D scanning.

The design consists of three main parts: a fixed top plate (for placing the object to be scanned), a middle rotating plate with an internal gear mechanism, and a base that houses all the electronic components. The core of the system uses a 28BYJ-48 stepper motor to drive the middle gear plate for 360-degree rotation, while equipped with a phone holder to keep the phone at a fixed distance for smooth rotation around the object.

The highlight of the project is its clever three-layer structural design and the application of four ball bearings, ensuring smooth rotation. The electronic part uses an ESP8266 development board, supporting wireless control, making the entire scanning process more convenient. Paired with smartphone 3D scanning applications (like Polycam), this DIY turntable can help makers easily create high-quality 3D models, making it ideal for enthusiasts interested in 3D modeling and printing.

Source: https://www.instructables.com/How-to-Build-a-Motorized-3D-Scanning-Turntable-for/

Dual-Mode Wireless Communication Analyzer

This is a multifunctional portable device that integrates LoRa long-distance communication and Wi-Fi network analysis, equipped with laser ranging capabilities.

This device, named DualCast, can be considered a Swiss Army knife for wireless communication enthusiasts. It can analyze real-time traffic of 2.4GHz Wi-Fi networks and send AES-128 encrypted long-distance commands via 915MHz LoRa technology, with a transmission distance exceeding 1 kilometer under default settings. The device features a flip design, allowing you to switch between Wi-Fi and LoRa modes by simply rotating it 180 degrees.

In addition to its powerful wireless capabilities, DualCast also integrates various sensors, including the BME280 for atmospheric monitoring, the BMI323 for orientation detection, and the VL53L4CX laser radar for precise distance measurement from 0 to 6 meters. The built-in rechargeable lithium battery allows you to use this feature-rich device anytime, anywhere, without worrying about power issues.

For makers and electronics enthusiasts, this is a great project that can be used for network analysis and security testing, as well as serving as a control center for smart home devices, sending encrypted commands to various custom devices. All design files and source code are open-sourced, allowing for customization and expansion according to your needs.

Source: https://www.instructables.com/Compact-Long-Range-LoRa-Transceiver-and-Wireless-N/

Bluetooth Remote-Controlled Arduino 3D Printed Car

This is a 3D printed remote-controlled car project based on Arduino, allowing you to easily control your DIY RC car using your phone’s Bluetooth. The highlight of this project is that it can be entirely made using 3D printing and common electronic components, including a complete chassis, suspension system, and electronic control system.

The vehicle features a front and rear suspension design, equipped with an ESC electronic speed controller, a servo steering system, and relay-controlled forward/reverse functionality. The control is very convenient; just install the RoboRemo app on your phone and connect via Bluetooth for wireless remote control. The project also supports optional RGB light strips and front and rear LED lights, allowing your car to look cool while driving at night.

Even for beginners, following the detailed guide step by step will allow you to complete this fully functional remote-controlled car, making it an ideal project for electronics DIY and 3D printing enthusiasts.

Source: https://www.instructables.com/3D-RC-Arduino-Based-RC-Car/

This weekly report was first published in the DF Maker Community

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