Hello i am tring to make arduino multimeter, this is my progress so far. This device has multiple features and it can track analog readings from sensors or components, measure resistance and drop voltage of the diode. It has built in continuity test, temperature sensor. It can show voltage of the battery and also produce signals using PWM.
I build it to test and track behaviours of various components and sensors. It can also track average, minimum and maximum values of sensor or component. Later i got idea to improve it to be little
multimeter.
The display is
IIC I2C 0.91" 128x32 white OLED LCD Display , it cost around 3 dollars on ebay and it can be used with adafruit 1306 or with u8g2 library. Other parts are arduino nano, buzzer, 2K resistor, 220 resistor, 4.7K resistor and 18b20 temperature sensor. And some female and male headers.
terryking82 i will send mail very soon. I want to modify sketch beacouse names of variables and comments are in croatian lenguage, i will translate it to english. Thank you for sharing my project.