This design is a device that can measure the size of capacitance and resistance, and can measure the voltage value of the resistance to be measured through ADC, and automatically select the range. The resistor under test and the reference resistor in the circuit divide the voltage. If the voltage of the resistor under test is too large or too small. The chip will automatically select the appropriate range until a more accurate voltage value is measured. Finally, the resistance value is displayed on the screen through the OLED screen. The capacitance measurement uses the NE555 oscillation circuit to obtain the capacitance value, and displays the capacitance value on the OLED screen through the capacitance calculation formula.
All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.
It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.
Supported by EEWorld Datasheet
EEWorld
subscription
account
EEWorld
service
account
Automotive
development
community
Robot
development
community
About Us Customer Service Contact Information Datasheet Sitemap LatestNews
Room 1530, 15th Floor, Building B,
No.18 Zhongguancun Street,
Haidian District,
Beijing, Postal Code: 100190
China
Telephone: 008610 8235 0740
京公网安备 11010802033920号
M87C257-15F3X
