ESP32 Universal Remote Control 3D Printed Case Files - Black Technology Open-Source Remote Control

Printing suggestions: PLA or PETG. The filament used for prototyping by the blogger is Bambu PETG Translucent.

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The blogger only organized the model and prototyped it with the Bambu Lab A1 printer

Original author: Heiren Heikeji

Original author's actual test results: Watch the test video for more details: DIY Universal Remote Control_Bilibili_bilibili

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Below is a brief explanation of the original author's project, organized by the blogger:

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Project Description: When playing with various RC models, robots, or other toys, it is common to encounter situations where different devices require different remote controls, leading to management confusion. Therefore, I designed this multifunctional universal remote control, which can not only control numerous devices but also connect to a computer via Bluetooth for use as a game controller, and even allow for writing small games on the remote for entertainment. Achieving the elegance of 'one control in hand, the world is mine'!

Project Features:

1. Core Chip: Based on ESP32-S3, using a development board with a 1.91-inch 240*536 resolution screen, providing excellent display effects.
2. Input Devices: Including 4 regular buttons, 4 toggle switches, 2 potentiometer knobs, 2 high-precision RC joysticks, 8 function buttons, 2 onboard buttons, and 1 MPU-6050 electronic gyroscope.
3. Communication Module: Uses a 20dBm nRF24L01 module, equipped with a 3dBi gain antenna, allowing for a remote control distance of over 2000 meters.
4. Power Supply: Uses two 2600mAh high-capacity 18650 lithium batteries, integrating a charging and discharging module to ensure long battery life and convenient charging.

Design Principle: The remote control continuously reads the status of each button and joystick, combines this data into a custom structure, and sends it to the receiver via nRF24L01. After receiving the data, the slave device parses it and performs the corresponding actions.

Casing Design:

1. Comfortable Grip: Extensive chamfer and fillet designs ensure the casing fits the hand well and is not prone to slipping.
2. Ease of Manufacturing: Utilizes a modular design, separating irregularly shaped parts, leaving as many flat surfaces as possible to facilitate 3D printing, and supports multi-color printing.
3. Aesthetic and Practical: While meeting comfort and manufacturability, efforts were made to enhance the aesthetic appeal and add personalized elements.

Manufacturing Process:

1. Procure Components: Purchase all necessary components according to the list (detailed list in attachment).
2. Solder PCB: Solder components onto the PCB, install the development board and batteries, and connect the power cables.
3. 3D Printing: Print the casing and all buttons, knobs (plain version casing files provided).
4. Assembly: Assemble the electronic components with the casing.
5. Final Installation: Finally, install the keycaps and antenna to complete the hardware assembly.