The simplest extended version's schematic diagram is as follows:
The PBC part is as follows:
The 3D file drawings are as follows:
The software and tutorials are available on Gitee: https://gitee.com/tanzihua
beae56f9f87c33a8d25e44f7ee30abe9.mp4
PDF_LED Tachometer and Gear Display.zip
Altium_LED Tachometer and Gear Display.zip
PADS_LED Tachometer/Gear Display.zip
BOM_LED Tachometer and Gear Display.xlsx
93533
Heart-shaped voice-activated LED running light
This is a very complex LED running light design, requiring both 138 and 160 chips! It could easily be solved with just two CD4017s, but this is a requirement of the project manual. Of course, this is a small course project with little technical complexity. The LED protection resistor is a bit too small; it could be replaced with a 1K resistor.
The sound signal is amplified by the microphone and used as a clock signal to provide a signal to 160, thereby achieving the sound control effect. The two levels of 160 control the opening and counting of 138 respectively. After reaching 20, it is directly cleared to zero and the next cycle begins.
Demonstration video of the flowing light section.mp4
PDF_Heart-shaped Voice-activated LED Flowing Light.zip
Altium_Heart-shaped Voice-activated LED Flowing Light.zip
PADS_Heart-shaped Voice-activated LED Flowing Light.zip
BOM_Heart-shaped Voice-activated LED Flowing Light.xlsx
93535
【RubyFPV】Radxa Zero 3W Expansion Board
This expansion board is designed for Radxa Zero 3W with RubyFPV firmware. It uses the Blink 8812EU as the receiving network card and requires a dual Type-C OTG cable to connect the expansion board and the 3W (a portable Wi-Fi data cable can be used).
PDF_【RubyFPV】Radxa zero 3W expansion board.zip
Altium_【RubyFPV】Radxa zero 3W expansion board.zip
PADS_【RubyFPV】Radxa zero 3W expansion board.zip
BOM_【RubyFPV】Radxa Zero 3W Expansion Board.xlsx
93536
Desktop temperature and humidity meter
Learn to replicate a temperature and humidity tester with the LCSC training camp, including schematic drawing, PCB layout, manual board soldering, software debugging, and more.
The SMT32G030K6T6 main control IC sends data to the SHT40 sensor, and the raw data received from the sensor is fed back to the main control IC for calculation, analysis, and display on two three-digit LED displays. Low power consumption is also configured. The system is woken up by an external button, displays twice, and then re-enters sleep mode.
34a40f9fb30bd4118b5dbc76aadb6d9e.mp4
PDF_Desktop Temperature and Humidity Monitor.zip
Altium Desktop Temperature and Humidity Monitor.zip
PADS Desktop Temperature and Humidity Monitor.zip
BOM_Desktop Temperature and Humidity Monitor.xlsx
93537
STC 32F/32G/8H 15F/15W DIP40 Adapter Board
The STC 32F/32G/8H 15F/15W series also has a DIP40 package, but the pinout is different from the traditional 8051. This adapter board allows it to be used on traditional 8051 DIP40 development boards.
When learning 8051 microcontrollers, textbooks almost always include DIP40 packages
, as shown in the image below.
Therefore, development boards with DIP40 locking sockets for traditional
8051 microcontrollers are very common. The STC 32F/32G/8H 15F/15W series also have DIP40 packages, but their pinouts differ from the traditional 8051.
Using STC-ISP software,
we can compare the pinouts of different series:
STC32F12k64,
STC8H8k64U,
and STC15F2K60S2 .
A closer look reveals that the differences are minor.
Therefore, the goal is to use a single adapter board for the STC 32F/32G/8H 15F/15W series DIP40 packages, enabling them to be used on traditional 8051 DIP40 development boards, allowing older development boards to use the latest microcontroller series.
I'm a complete beginner in PCB design, with ideas but limited skills. I stumbled upon this activity and want to participate in this competition to challenge myself.
My work has absolutely nothing to do with electronics;
because I have to work, I can only participate in this activity in my spare time. Only
after receiving the prototype
and truly starting from scratch did I realize how difficult it was to turn what I thought was simple
into a tangible product. The various difficulties involved in transforming a seemingly simple idea into a physical object are something you can only truly understand after experiencing them yourself, but that's part of the joy of loving electronics. I'm grateful to JLCPCB for this platform and for this opportunity to participate in the STC Microcontroller Creative Design Competition.
Since I'm just starting to learn PCB design, the project involves four boards. I found a problem with V3 after creating the board, but it worked after manually modifying the jumpers.
V4 fixed the errors in V3 and optimized the circuitry, but I didn't create another board for it.
All the design functions have passed testing. The test video is too large to upload; please click the links to watch it on
Xigua Video,
Bilibili, or other platforms.
Finished product front view.jpg
The back of the finished product.jpg
Button modified circuit board.jpg
Button plus jumper 1.jpg
Button plus jumper 2.jpg
Test light modification circuit board.jpg
Physical simulation image - description.png
PDF_STC 32F-32G-8H 15F-15W DIP40 Adapter Board.zip
Altium_STC 32F_32G_8H 15F_15W DIP40 Adapter Board.zip
PADS_STC 32F_32G_8H 15F_15W DIP40 Adapter Board.zip
BOM_STC 32F_32G_8H 15F_15W DIP40 Adapter Board.xlsx
93538
Arduino Uno - Arthur Morgan Commemorative Edition - Red Dead Redemption 2
Blank + Color Silkscreen Type-C / CH340C / ATMega328P Arduino Uno R3 Development Board
A blank Arduino Uno R3 development board with Type-C, CH340C, and ATMega328P pins
, featuring colored silkscreen printing
! [IMG_7132.jpg]
[2024-07-25_13-00-37.png]
[2024-07-25_13-03-38.png]
This standard Arduino Uno R3 development board is simple to use; you can draw various colored silkscreen pin
layouts to ensure compatibility with the official design.
[preview]
Bilibili promotional videos:
https://www.bilibili.com/video/BV1Ay411q7CH/
https://www.bilibili.com/video/BV17y411i7Wf/
abeno.mp4
PDF_Arduino Uno - Arthur Morgan Commemorative Edition - Red Dead Redemption 2 .zip
Altium_Arduino Uno - Arthur Morgan Commemorative Edition - Red Dead Redemption 2 .zip
PADS_Arduino Uno - Arthur Morgan Commemorative Edition - Red Dead Redemption 2 .zip
BOM_Arduino Uno - Arthur Morgan Commemorative Edition - Red Dead Redemption 2 .xlsx
93539
electronic
The antenna mount uses this type (5cm in length): 
Five-way buttons: Up = Previous, Down = Next, Left = Back, Right = Shortcut key Q1 Inward = Confirm. 
京公网安备 11010802033920号
MB11101GBN
