#The 7th Lichuang Electric Competition#USB interface current and voltage display

Note: * is a required field,
please fill it in during the registration stage↓
 
* 1. Project function introduction
It can detect current, voltage, and power, and display them through 0.91 oled. The crystal oscillator circuit in the
input voltage 5V project can be removed and the internal crystal oscillator of the chip can be used. Because the crystal oscillator shell I bought is metal and there is no air gun, I did not use an external crystal oscillator. *2. Project attributes are learned through the LiChuang EDA summer training camp and drawn according to its circuit diagram. * 3. Open source agreement note: Altruism is self-interest, please read the following content carefully. Embrace open source and give unlimited value to the project. It is recommended that more than 80% of the core functions of the project be open source; if a part of the function is irreplaceable and the project cannot solve the corresponding problem after deleting it, then the function implemented by this part is the core function of the project; for example, if an electronic load is designed and a host computer software is designed to monitor power changes, the electronic load is the core function and the host computer software is an auxiliary function; for example, an isolated 485 module is used in the electronic load to communicate with the host computer, then the communication function implemented by this 485 module is an auxiliary function; the project should choose an open source protocol that suits it. If the project references other open source projects, the source should be indicated and the original author's open source protocol should be followed; the original project is recommended to use the GPL3.0 open source protocol; the functions directly referenced from the original circuit or original code of the open source project cannot be used as the core functions of your own project, and the functions directly implemented using the general modules on the market cannot be used as the core functions of your own project. Please fill in the following in the competition stage↓ *4. Please enter the content for the hardware part ... Note: It is recommended to use Jiali Chuang EDA. If you choose other EDA tools, please upload the schematic diagram in PDF format, the PCB drawing in PDF format, and the PCB file in Gerber format in the attachment. Here you can explain in detail the implementation principle and mechanism of your project, precautions, debugging methods, testing methods, etc. It is recommended to introduce your ideas to others in the form of pictures and texts. *5. The software has not been started yet and will be uploaded after the product is available. *6. BOM list No. Quantity Device Designator Footprint Value Manufacturer Part Manufacturer Supplier Part Supplier 1 8 CL10B104KB8NNNC C1,C3,C5,C6,C7,C8,C10,C17 C0603 100nF CL10B104KB8NNNC SAMSUNG C1591 LCSC 2 3 FN18N4R7B500PSG C2,C4,C9 C0603 4.7pF FN18N4R7B500PSG PSA C565615 LCSC 3 2 0603CG120J500NT C11,C12 C0603 12pF 0603CG120J500NT FH C1642 LCSC 4 1 917-181A102ED60200 CN1 USB-A-TH_AM90 917-181A102ED60200 C9739 LCSC 5 1 B -2100S02P-A110 H2 HDR-TH_2P-P2.54-VM-1 B-2100S02P-A110 Ckmtw C124375 LCSC 6 1 2.54-1x6P Straight Pin H4 HDR-TH_6P-P2.54-VM-1 2.54-1x6P Straight Pin BOOMELE C37208 LCSC 7 1 2.54-1*4P Female H6 HDR-TH_4P-P2.54-VF 2.54-1*4P female BOOMELE C2718488 LCSC 8 3 0603WAF1002T5E R1,R2,R3 R0603 10k 0603WAF1002T5E UNI-ROYAL C25804 LCSC 9 1 LR2512-23R010F4 R4 RES-SMD_L6.4-W3.2 0.01Ω LR2512-23R010F4 RALEC F LCSC 10 1 0603WAF9102T5E




 
 
 






 

 


 

 


 














































 









 









 









 



























R5
R0603
91kΩ
0603WAF9102T5E
UNI-ROYAL (thick sound)
C23265
LCSC
11
1
0603WAF0000T5E
R6
R0603
0Ω
0603WAF0000T5E
UNI-ROYAL (thick sound)
C21189
LCSC
12
1
DS-THAM04-ABB- R
SW2
SW-SMD_D-SWITCH_DS-THAM04-ABB-R
 
DS-THAM04-ABB-R
D-SWITCH(Desong)
C2981352
LCSC
13
1
N32G430C8L7
U2
LQFP-48_L7.0-W7.0-P0.50-LS9.0-BL
 
N32G430C8L7
Nations(National Technology)
C3032170
LCSC
14
1
INA199A1DCKR
U3
SC-70-6_L2.2-W1.3-P0.65-LS2.1-BR
 
INA199A1DCKR
TI(Texas Instruments)
C59135
LCSC
15
1
AMS1117-3.3
U4
SOT-223- 3_L6.5-W3.4-P2.30-LS7.0-BR
 
AMS1117-3.3
USA AMS
C6186
LCSC
16
1
U-A-24DS-W-1
USB1
USB-A-SMD_U-A-24DS-W-1.
 
UA- 24DS-W-1
Korea Hanrong
C530628
LCSC
17
1
TAXM8M2QLFCDT1T
X2
OSC-SMD_L5.0-W3.2
8MHz
TAXM8M2QLFCDT1T
TAE (Ya Jingxin)
C122522
LCSC
 
*7. For the competition logo verification
 
, please upload the project image containing the competition logo. The logo is printed on the PCB in the form of silk screen.
Click zip to download the competition logo! ( Competition logo).zip
 
* 8. Demonstrate your project and upload it as a video