A new manometer with arduino

Abstract

Manometer, the U-shaped tube contains liquid, is the apparatus for measuring pressure. By reading the risen liquid level, the pressure can be obtained. Arduino is the microcontroller that plays a crucial role for physics instruction because the device is simple, inexpensive and accurate. Arduino can be connected with many types of probe, for example, lux meter, sound meter, pressure meter, etc. Due to its application, teaching physics with Arduino can draw students' attention excellently. The purpose of the study was 1) to invent the new manometer with Arduino for measuring pressure at different level of dept and figuring out the buoyance force on the object 2) to improve students' understanding in pressure and buoyance force. The participants were 40 students. The method for the study was a one-group pretest-posttest design including 10 three-tier questions. The finding indicated that 1) the new manometer was handy and accurate 2) students' concept about pressure and buoyance force had been improved at the significant level of.05.