Cov txheej txheem:
- Kauj Ruam 1: Muab Tam Sim No Sensor Ua Ke
- Kauj Ruam 2: Cuam Tshuam Sensor Board Ua Ke Nrog Arduino Nano
- Kauj Ruam 3: Txuas ntxiv hauv LCD thiab Load Resistor rau Pawg Thawj Coj
- Kauj Ruam 4: Ua tiav Qhov System
- Kauj ruam 5: Arduino Sketch
Video: Tsawg Ohmic Resistance Meter Nrog INA219 Tam Sim No: 5 Cov Kauj Ruam
2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:27
Nov yog tus nqi qis milliohm meter uas tuaj yeem tso ua ke los ntawm kev siv 2X INA219 lub ntsuas tam sim no, Arduino nano, 2X16 LCD zaub, 150 Ohms load resistor thiab yooj yim arduino code uas lub tsev qiv ntawv tuaj yeem pom hauv online. Qhov zoo nkauj ntawm txoj haujlwm no tsis muaj qhov xav tau tam sim no xav tau raws li qhov ntsuas tam sim no yuav saib xyuas qhov ntsuas.
Kauj Ruam 1: Muab Tam Sim No Sensor Ua Ke
Txij li INA219 qhov ntsuas tam sim no siv I2C raws li nws kev sib txuas lus raws tu qauv. Muab lawv ua ke hauv kev sib txuas sib txuas thiab muab txhua pawg thawj coj nrog nws qhov chaw nyob tshwj xeeb yuav ua.
Kauj Ruam 2: Cuam Tshuam Sensor Board Ua Ke Nrog Arduino Nano
Solder ob qho tib si INA219 lub rooj tsav xwm tam sim no ua ke nrog Arduino nano raws li cov phiaj xwm pom saum toj no. Sab saum toj tam sim no sensor 100mOhm resistor raug tshem tawm.
Kauj Ruam 3: Txuas ntxiv hauv LCD thiab Load Resistor rau Pawg Thawj Coj
Txuas lub LCD thiab thauj khoom tiv thaiv kom ua tiav qhov system. 150 Ohms load tsis kam yog siv los txwv qhov tam sim no dhau los ntawm DUT. Nws tau siv los txwv qhov tam sim no qis dua 100mA nrog cov hluav taws xob nkag ntawm 12VDC.
Kauj Ruam 4: Ua tiav Qhov System
Cov kab ke ua tiav raws li qhia. Yeej yog ib qho ntawm lub rooj tsav xwm sensor tam sim no yuav raug siv los ntsuas qhov tam sim no hauv qhov kaw kaw. Raws li peb paub tam sim no hauv lub voj kaw uas tsis muaj brunches zoo ib yam. Lub rooj tsav xwm INA219 thib ob yog siv los ntsuas qhov ntsuas hluav taws xob hla DUT. Txoj cai yooj yim Ohms tuaj yeem siv los xam qhov tsis kam ntawm DUT. V = kuv * R; R = V / I hauv Ohms
Kauj ruam 5: Arduino Sketch
Arduino daim duab
www.youtube.com/watch?v=4fyYZ-gOCig
Pom zoo:
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