1. Project Description
1.1 Project Document Description
1.1.1 Mind Map: The
Mind Map file contains the mind map, logic diagram, and physical block diagram used in this project.
1.1.2 Shell Design:
The Shell Design file contains the shell design data for this project.
1.1.3 Circuit Design:
The Circuit Design file contains the circuit schematic, PCB layout diagram, BOM, and other data used in this project.
1.1.4 Software
: The Software File contains the software code and other data used in this project.
1.1.5 Display Attachments
: The Display Attachments file contains physical images, demonstration videos, and other data for this project.
1.1.6 Notes:
The Notes file contains notes on this project, future iterations, and other information.
2. Project Hardware
2.1 PCB

2.2 Shell Design:
The main shell is made of aluminum alloy, with dimensions of 100*90*44mm. The control indicator panel is made of PCB board, aluminum alloy, or other materials.
2.3 External Components (OLED bare screen, 100K dual potentiometer, USB alligator clip)

3. Project Software
3.1 Terminal main
control chip is STC8H1K17
4. Open Source License
4.1 Open Source License
Open Source License: GPL 3.0
4.2 Introduction to Open Source License
GPL (GNU General Public License): GNU General Public License.
The starting point of GPL is the open source/free use of code and the open source/free use of reference/modification/derived code, but it does not allow the modified and derived code to be released and sold as closed source commercial software.
5. Project Related Functions

5.1 Functions
(1) Adjustable positive and negative power output 1.3V~11V/3A
(2) Real-time battery power display
(3) Real-time output voltage and current display
5.1 Accuracy
Voltage: 0.1V
Current: 0.2A
Power: 2%

6. Project Attributes
This project is being published for the first time and is my original project. The project has not won any awards in other competitions.
7. Project progress
> February 16, 2024 Project establishment
> March 12, 2024 Schematic design
> April 10, 2024 PCB design
> May 10, 2024 Shell design, assembly and debugging
> June 10, 2024 Project completion
8. Physical display

9. Design notes
(1): The crystal oscillator circuit of the MCU circuit in the application does not need to be soldered. The crystal oscillator frequency is adjusted to 12MHz when downloading.
(2): The 30Ω surface mount inductor in the circuit can be replaced by a 0Ω resistor.
(3): It is recommended to connect a 470uF electrolytic capacitor in parallel with the 10uF tantalum capacitor at the power input and output terminals; this can better optimize the filtering effect.

10.
For the complete video, please watch it on Bilibili: https://www.bilibili.com/video/BV1Lb421e7bw/?pop_share=1&vd_source=e061bdf6570d681c1cb0d961ec9d8281
11. Note (Special Note):
This version is a preview version 0.3. Further optimizations and updates will follow. Please stay tuned!