Micro Amp Meter (Enclosure)

thingiverse

This text appears to be a tutorial on how to assemble and use an ultra-low current measuring device known as the uAmp meter. The author provides instructions on how to modify the original code to work with current libraries, and notes that the circuit works better than expected. The text also includes some final thoughts on the device's capabilities, including its precision and fast response time, which makes it useful for estimating battery life in digital designs. The author also notes that the device requires an isolated power supply and provides tips on how to ensure this. Here are the main points from the text: * Assemble the uAmp meter using the provided instructions. * Modify the code to work with current libraries by changing the library name, instantiating the ADC, commenting out a line in setup(), adding a line at the end of setup(), and updating the platformio.ini file if using PlatformIO. * The circuit works better than expected and is useful for estimating battery life in digital designs. * The device requires an isolated power supply to avoid common ground issues. * Use a USB charger or other isolated power source to power the uAmp meter. The text also includes some additional notes on how to use the device, including: * You can connect A+ and B+ together, but this will affect the accuracy of the measurement. * You can also connect A+/B+ both to ground, then A- to the ground of node A, and B- to the ground of node B. This allows for arbitrary source voltages from a common ground. * Be careful not to short-circuit the loop by connecting both A+ and B+ together. Overall, this text provides a detailed guide on how to assemble and use the uAmp meter, including modifications to the code and tips on how to ensure accurate measurements.