#Training Camp# Simple Oscilloscope [Open Source File Download] 9.9 RMB GD32 Microcontroller STM32 Microcontroller 1.8-inch 7735 Screen - 632263W

       　　　　　　　　　　　　　　　　　　　　　　　　　　　　　In March 2024
　　　, I participated in the LCSC training camp, learning the principles of a simple oscilloscope, PCB fabrication, GD32 microcontroller programming experiments, and how to design the casing for LCSC EDA. It was my first time using LCSC EDA to design casings and panels, and I was truly impressed by its power, ease of learning, and convenience. Crucially, LCSC has promised to provide LCSC EDA permanently free of charge; LCSC's contributions to the nation are immeasurable, and I deeply admire them.
　　　As an audiophile who frequently works on audio circuits, I already own an oscilloscope, but it's quite bulky. For a long time, I've wanted a mini oscilloscope—not requiring high precision or high frequency measurements, just something convenient for checking circuit waveforms. This training camp was perfect for me.
          After learning, I modified the layout, prioritizing practicality and ease of use: the left hand operates the probe (input is on the left), and the right hand operates all function keys and knobs (most function keys are located within right-hand reach), conforming to my usual usage habits.
 
       On the software side, I'm a complete beginner with the GD32 microcontroller (I had never even heard of it before joining the training camp). I'm currently learning programming, referencing the default program from the training camp, replicating and improving it. The improved version is available for download in the attachment. (Links to the official tutorial videos and complete materials are below; I won't repeat the principles and circuits here.)
 
       Regarding the casing, I was surprised how convenient it was to design the casing using "LCSC EDA" (I've never learned any other 3D modeling software, always considering it a huge hurdle). Because this PCB design uses connectors for the microcontroller and display, the overall thickness is relatively high. This was my first time designing a casing, so the focus was on familiarizing myself with the software's functions and the order-making process. Next time, I'll design a second version with an integrated circuit board, where the casing can be made ultra-thin.
       The actual product is more refined and attractive than the pictures. I often play with it on my desk. Aside from its functionality, I use it as a stress-relieving toy (like a ZIP lighter)
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　　This was my first time attending LCSC's training camp, and I learned a lot. I felt very refreshed and corrected my bad habits when doing PCB design. I used to think that LCSC EDA was just more convenient than Protel, but now I know that in addition to being easy to use for PCB design, LCSC EDA can also be used to make 3D shells and product panels. It's a one-stop shop for design and production, and the entire product can be directly output. I went through the entire process, thanks to JLCPCB, I'm awesome!
 
Official materials for this training camp: (Downloadable files below include: official documents and my own work after learning)
Oscilloscope Project Documentation https://www.yuque.com/wldz/jlceda/dso?singleDoc    
Hardware Design Recordings https://www.bilibili.com/video/BV13x4y1k7mk/?spm_id_from=333.999.0.0    
Software Design Recordings https://www.bilibili.com/video/BV1kw4m1o73g/?spm_id_from=333.788    
 
            Also, because I registered for the training camp late, the QQ group was full, and the official website videos were also full due to the large number of participants. So I was essentially adrift and couldn't see the group discussions, which was a bit of a disappointment. Thankfully, the training camp provided very comprehensive online materials and learning videos. So I can confidently tell anyone wanting to replicate this project: don't hesitate, come and replicate it! The official materials are very comprehensive, and you'll learn a lot.
 
The actual costs have been explained in the Bilibili videos; there are four videos on Bilibili:
http://bilibili.com/video/BV1jJ4m1578k/?spm_id_from=333.999.0.0&vd_source=aa5025be82f5969b7242b0126842d2f5
https://www.bilibili.com/video/BV1ZC41157bk/?vd_source=aa5025be82f5969b7242b0126842d2f5 From
 
        another perspective, JLCPCB provided manpower and resources, designing and producing circuit products and courses that we can learn from. I don't know the time the teachers spent in the initial preparation phase, but just from the start of the course to graduation, managing and answering student questions took more than a month. Thank you to all the teachers for your hard work! Over 2,000 students submitted assignments .
       If we assume 2,000 students, and JLCPCB sponsored an average of 100 RMB per person, then over 200,000 RMB would have been given to us for free (and this is just one training camp session). This is the first time we've encountered such a wonderful company. Thank you, JLCPCB, from the bottom of my heart! I hope JLCPCB grows stronger and stronger!!
 
Bilibili:
http://bilibili.com/video/BV1jJ4m1578k/?spm_id_from=333.999.0.0&vd_source=aa5025be82f5969b7242b0126842d2f5
https://www.bilibili.com/video/BV1ZC41157bk/?vd_source=aa5025be82f5969b7242b0126842d2f5
 
There are 3 videos below + 4 videos on Bilibili (This page limits playback to 3 videos directly; there are 2 more unique videos on Bilibili).