Turn-key PCB assembly services in prototype quantities or low-volume to mid-volume production runs

DIY an Autorange Capacitance Meter!

Sometimes, it’s hard to find the suitable capacitance meter, especially those that in the autorange version. Instead of searching it all over the places, it’s better to develop one for your own use! Today, you’ll learn how to DIY an autorange capacitance meter! Since it’s in the autorange version, this also means it doesn’t need to adjust the range settings anymore! Moreover, the measuring range for this autorange capacitance meter is quite large as well, where it ranges from 5 pF all the way to 2600 uF. Don’t worry about the range, as it’s all taken care of by the PIC16F873A inside the circuit. This project is based on a very simple circuit analysis principle of charging and discharging of capacitors in an RC circuit. Thus, the further components are… Continue reading