[Replica] Crystal Point - CW32 Multifunctional Test Pen

The Dianjing CW32 Multifunctional Test Pen
 
Official Training Camp Replica (https://oshwhub.com/heyh/dian-jing-testpen)
features a redesigned PCB and a streamlined shape similar to a reading pen, improving grip. The overall size is identical to the original.
The 3D shell uses 3D Monkey 8001 transparent material, and the top cover is made of LCSC printed acrylic.
 
The LDO has been modified to SOT-353

ME6211C33R5G

. The original SOT-23 SBAT54SLT1G Schottky diode is a single pair in series; be careful not to buy the wrong one. Alternatively, two two-pin Schottky diodes can be used.
 
The lighting has been changed to two 1.1*1.7 side-mounted LEDs .

The XL-1606UWC

 
firmware
uses the original firmware, only modifying the boot image and display delay.
The image extraction code is changed in logo.h,
and the boot image can be changed by modifying LCD_ShowPicture in main.c.
 
 
Bluetooth
can be detected. After connection, data can be viewed via a host computer.
The TTL, 
PWM,
and DC OUT
 
batteries are 402030, which are a bit large for my setup; I squeezed them in. A smaller one would normally be preferable.
 
Physical verification
: https://www.bilibili.com/video/BV1sQ4y1b7WR/?vd_source=74a9f6cb9a59140477fef67bbb0ec8ee