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92682

Dong Xiaofeng's voltmeter and ammeter

This project utilizes the LCSC Divinstar development board as its core to achieve high-precision real-time voltage and current measurement. It supports a wide voltage range and USB-C power supply, offering both through-hole and surface-mount versions for flexible selection. All versions feature a 3D housing design, creating an integrated, multi-functional voltage and current meter solution.

Project Overview:
This product is a voltage and current meter designed using the CW32 LCSC Diwenxing development board as its core. It features simultaneous measurement, calibrability, and multiple power supplies.
Project Attributes:
This product is available in through-hole and surface-mount versions. The surface-mount version achieves the same functionality with higher density and features a 3D shell design. It also adds a widely used USB-C interface as a power option to improve usability.
Hardware Part:
Wide Input Module
(
Through-hole and Surface-mount Versions)
Overall Routing: For both through-hole and surface-mount
versions , it is recommended to start with smaller components and solder the through-hole components last. Note that the USB-C connector is relatively difficult to solder; if your soldering skills are average, it is recommended to omit this function. The overall soldering difficulty of the board is relatively low. Software Part: Keil 5 is used for programming and function implementation. Material Selection Plug-in Version Quantity Comment Designator Footprint Value Manufacturer Part Manufacturer Supplier Part 3 100nF C1,C2,C5 CAP-TH_L5.0-W2.5-P5.00-D1.0 100nF CC1H104MC1FD3F6C10MF Dersonic (DERC) C254085 2 10nF C3,C4 CAP-TH_L4.8-W3.2-P5.08-D1.2 10nF CC1H103ZC1ED3F4D1100 Dersonic (DERC) C2761727 1 100pF C6 CAP-TH_L5.0-W2.5-P5.08-D0.7 100pF CC1H101KC74DSL4B10MN Dersonic (DERC) C254079 2 100nF C7,C8 C0805 100nF CC0805KRX7R9BB104 YAGEO (国巨) C49678 1 ZX-XH2.54-3PZZ CH1 CONN-TH_3P-P2.54_2501S-3P ZX-XH2.54-3PZZ Megastar (兆星) C7429633 2 M3960V-02P CN1,CN2 CONN-TH_2P-P3.96_B4P-VH-B-LF-SN M3960V-02P XFCN (兴飞) C492513 3 1N4148 D1,D2,D3 DO-35_BD2.0-L4.2-P8.20-D0.5-RD 1N4148 LGE (鲁光) C402212 1 1N5819 D4 DO-41_BD2.4-L4.7-P8.70-D0.9-RD 1N5819 LGE (Luguang) C402218 1 DC-005-2.5A-2.0 DC CONN-TH_DC-005-2.5A-2.0 DC-005-2.5A-2.0 XKB Connection (China Xingkun) C319099 2 47uF EC1,EC2 CAP-TH_BD6.3-P2.50-D1.0-FD 47uF KS476M050E07RR0VH2FP0 CX (Chengxing) C45100 1 100uF EC3 CAP-TH_BD6.3-P2.50-D1.0-FD 100uF KS107M016E07RR0VH2FP0 CX (Chengxing) C43805 2 22850120ANG1SYA01 H1,H2 HDR-TH_20P-P2.54-VF 22850120ANG1SYA01 JILN (Jinling) C429947 1 PZ254V-11-04P H3 HDR-TH_4P-P2.54-VM PZ254V-11-04P XFCN (Xingfei) C492403 2 B-2100S02P-A110 JP1,JP2 HDR-TH_2P-P2.54-VM-1 B-2100S02P-A110































































 









 









 









 









 





























 









 









 

Ckmtw (灿科盟)
C124375


3
KH-6X6X9H-TJ
K1,K2,K3
SW-TH_4P-L6.0-W6.0-P4.50-LS6.5
 
KH-6X6X9H-TJ
kinghelm (金航标)
C2837519


2
FJ2381AH
LD1,LD2
LED-SEG-TH_FJ2381AH
 
FJ2381AH
志浩
C10701


1
MHL5013URDRT
LD_PWR
LED-TH_BD5.8-P2.54-FD
 
MHL5013URDRT
MEIHUA (美华)
C417347


1
XL-502UWC
LED1
LED-TH_BD5.9-P2.54-RD_WHITE
 
XL-502UWC
XINGLIGHT (Chengxingguang)
C2895480


1
100mΩ
R0
RES-TH_BD3.5-L9.0-P13.00-D0.5
100mΩ
MF1WS-0Ω1±1%-2T52
VO (Xiangsheng)
C2903206


6
300Ω
R1,R2,R3,R4,R5,R6
RES-TH_BD2.2-L6.5-P10.50-D0.6
300Ω
MFR0W4F3000A50
UNI-ROYAL (Housheng)
C58609


5
10kΩ
R7,R10,R12,R15,R16
RES-TH_BD2.3-L6.5-P10.50-D0.5
10kΩ
MF1/4W-10KΩ±1% T
CCO (Qianzhi Electronics)
C119347


1
220kΩ
R8
RES-TH_BD2.3-L6.5-P10.50-D0.5
220kΩ
MF1/4W-220KΩ±1% T
CCO (Qianzhi Electronics)
C119374


2
1kΩ
R9,R13
RES-TH_BD2.3-L6.5-P10.50-D0.5
1kΩ
MF1/4W-1KΩ±1%T52
Huaxing Electromechanical
C713997


1
10Ω
R14
RES-TH_BD2.2-L6.5-P10.50-D0.6
10Ω
MFR-25FTE52-10R
YAGEO (Yageo)
C138214


1
200kΩ
R17
RES-TH_BD2.3-L6.5-P10.50-D0.5
200kΩ
MF1/4W-200KΩ±1% T
CCO (Qianzhi Electronics)
C119373


2
5.1kΩ
R18,R19
R0805
5.1kΩ
0805W8F5101T5E
UNI-ROYAL (Housheng)
C27834


2
10kΩ
RP1,RP2
RES-ADJ-TH_3296W
10kΩ
3296W-1-103-8mm
BOCHEN (Bochen)

C330432




SMD



Quantity
Comment
Designator
Footprint
Value
Manufacturer Part
Manufacturer
Supplier Part


3
100nF
C1,C2,C5
C1206
100nF
FN31X104K500PXG
PSA (Xinchang Ceramics)
C464972


2
10nF
C3,C4
C1206
10nF
FV31X103K102ECG
PSA (Xinchang Electroceramics)
C394163


1
100pF
C6
C1206
100pF
FV31N101J202ECG
PSA (Xinchang Electroceramics)
C382205


2
47uF
C7,C8
CAP-SMD_BD5.0-L5.3-W5.3-FD
47uF
RVT1E470M0505
HONOR (Honor)
C696191


1
BX-XH2.54-3PZZ
CH1
CONN-TH_3P-P2.50_BX-XH2.54-3PZZ
 
BX-XH2.54-3PZZ
Bossie (Bossie)
C18077834


2
M3960V-02P
CN1,CN2
CONN-TH_2P-P3.96_B4P-VH-B-LF-SN
 
M3960V-02P
XFCN (Xingfei)
C492513


3
1N4148
D1,D2,D3
DO-35_BD2.0-L4.2-P8.20-D0.5-RD
 
1N4148
LGE (Luguang)
C402212


1
1N5819
D4
DO-41_BD2.4-L4.7-P8.70-D0.9-RD
 
1N5819
LGE (Luguang)
C402218


1
DC-005-2.5A-2.0
DC1
CONN-TH_DC-005-2.5A-2.0
 
DC-005-2.5A-2.0
XKB Connection (China Xingkun)
C319099


2
47uF
EC1,EC2
CAP-SMD_BD6.3-L6.6-W6.6-LS7.2-FD
47uF
VP1H470M0605
HONOR (Honor)
C4054383


1
100uF
EC3
CAP-SMD_BD6.3-L6.6-W6.6-LS7.2-FD
100uF
RVT1C101M0605
HONOR (Honor)
C37308


2
BX-PM2.54-1-20PY
H1,H2
HDR-TH_20P-P2.54-VF
 
BX-PM2.54-1-20PY
Bossie (Bossie)
C18078139


1
PZ254V-11-04P
H3
HDR-TH_4P-P2.54-VM
 
PZ254V-11-04P
XFCN (Xingfei)
C492403


2
B-2100S02P-A110
JP1,JP2
HDR-TH_2P-P2.54-VM-1
 
B-2100S02P-A110
Ckmtw (灿科盟)
C124375


3
HX TS669TP 250gf 009
K1,K2,K3
KEY-SMD_4P-L6.0-W6.0-P4.50-LS9.0
 
HX TS669TP 250gf 009
hanxia (韩下)
C5340129


2
FJ2381AH
LD1,LD2
LED-SEG-TH_FJ2381AH
 
FJ2381AH
志浩
C10701


1
XL-502SURD
LD_PWR1
LED-TH_BD5.9-P2.54-RD_RED
 
XL-502SURD
XINGLIGHT (成兴光)
C2895492


1
XL-502UWC
LED1
LED-TH_BD5.9-P2.54-RD_WHITE
 
XL-502UWC
XINGLIGHT (Chengxingguang)
C2895480


1
100mΩ
R0
RES-SMD_L6.4-W3.2
100mΩ
FMF25FPJR100-LH
PSA (Xinchang Electric Ceramics)
C335243


6
300Ω
R1,R2,R3,R4,R5,R6
R1206
300Ω
1206W4F3000T5E
UNI-ROYAL (Thick Sound)
C17887


5
10kΩ
R7,R10,R12,R15,R16
R1206
10kΩ
1206W4F1002T5E
UNI-ROYAL (Thick Sound)
C17902


1
220kΩ
R8
R1206
220kΩ
1206W4F2203T5E
UNI-ROYAL (Thick Sound)
C17956


2
1kΩ
R9,R13
R1206
1kΩ
1206W4F1001T5E
UNI-ROYAL (Thick Sound)
C4410


1
10Ω
R14
R1206
10Ω
1206W4F100JT5E
UNI-ROYAL (Thick Sound)
C17903


1
200kΩ
R17
R1206
200kΩ
1206W4F2003T5E
UNI-ROYAL (Thick Sound)
C17954


2
5.1kΩ
R20,R21
R1206
5.1kΩ
1206W4F5101T5E
UNI-ROYAL (厚声)
C26033


2
10kΩ
RP1,RP2
RES-ADJ-TH_3296W
10kΩ
3296W-1-103-8mm
BOCHEN (博晨)
C330432


4
M3 screws
TP1,TP2,TP3,TP4
M3 screws
 
 
 
 


1
SE8550K2-HF
U5
SOT-89-3_L4.5-W2.5-P1.50-LS4.2-BR
 
SE8550K2-HF
SEAWARD (思旺)
C115012


1
TL431(0.5%)
U6
TO-92-3_L4.9-W3.7-P1.27-L
 
TL431(0.5%)
UMW (友台电子)
C351448


1
HX TYPE-C 6PIN
U7
USB-C-SMD_HX-TYPE-C-6PIN
 
HX TYPE-C 6PIN
hanxia (韩下)
C18357552



8. Physical verification, voltage measurement.