#The7thLiChuangElectricityContest#USB Ammeter

1. Project function introduction:
USB ammeter based on N32G430C8L7+INA199, with an accuracy of 1%, can check the current when USB is working.
2. Project attributes
are not original, based on training camp content. This is the first time for a pure novice to contact electronic circuits and PCBs, and learn step by step according to the official tutorial case.
 
3. Open source agreement
GPL 3.0: https://opensource.org/licenses/GPL-3.0
 
4. Hardware part
5.
See the attachment for software part
 
6. BOM list
No.
Quantity
Comment
Designator
Footprint
Value
Manufacturer Part
Manufacturer
Supplier Part
Supplier
1
2
1TS001G-2700-1500-CT
BOOT,RST
SW-SMD_4P-L5.1-W5.1-P3.70-LS6.5-TL-2
 
1TS001G-2700-1500-CT
HYP(鸿源精准)
C318800
LCSC
2
7
100nF
C1,C2,C4,C5,C6,C7,C8
C0603
100nF
HMK107B7104KA-T
TAIYO YUDEN(太诱)
C385971
LCSC
3
1
4.7uF
C10
C0603
4.7uF
JMK107BJ475MA-T
TAIYO YUDEN
C412628
LCSC
4
2
22uF
C11,C12
C0603
22uF
GRM186R60J226ME15D
muRata
C237460
LCSC
5
1
100nF
C13
C0603
100nF
 
 
 
 
6
1
2.54-1x6P Straight Pin
H1
HDR-TH_6P-P2.54-VM-1
 
2.54-1x6P Straight Pin
BOOMELE
C37208
LCSC
7
1
XC6220B331MR-G
Q1
SOT-25-5_L3.0-W1.8-P0.95-LS3.0-BR
 
XC6220B331MR-G
TOREX
C86534
LCSC
8
2
10K
R1,R2
R0603
10K
 
 
 
 
9
1
91kΩ
R3
R0603
91kΩ
CR0603F91K0P05Z
EVER OHMS
C881144
LCSC
10
1
0.01Ω
R4
R2512
0.01Ω
WSLP2512R0100FEA
VISHAY
C241862
LCSC
11
1
10kΩ
R5
R0603
10kΩ
ERJU3RD1002V
PANASONIC
C491175
LCSC
12
1
0Ω
R6
R0603
0Ω
ERJS030R00V
PANASONIC
C713447
LCSC
13
1
N32G430C8L7
U1
​​LQFP-48_L7.0-W7.0-P0.50-LS9.0-BL
 
N32G430C8L7
Nations
C3032170
LCSC
14
1
INA199B1DCKR
U2
SC-70-6_L2.2-W1.3-P0.65-LS2.1-BL
 
INA199B1DCKR
TI (Texas Instruments)
C398920
LCSC
15
1
0.91OLED-IIC-IO4
U6
0.91-OLED-IIC-12832
 
 
 
 
 
16
1
917-181A102ED60200
USB_IN
USB-A-TH_AM90
 
917-181A102ED60200
Jingtuojin
C9739
LCSC
17
1
U-A-24DS-W-1
USB_OUT
USB-A-SMD_U-A-24DS-W-1.
 
UA-24DS-W-1
Korea Hanrong
C530628
LCSC
 
7. Competition LOGO verification
 
8. Complete the physical object