Freedom KL02z and 20×4 LCD

If till now you have used only libraries for 20×4 LCD then it will be more difficult to shifted to the another microcontroller if library is not available for new microcontroller. That time you need to know basic working of LCD. After that you can use this LCD...

Simple signal translator using Some resistances

Recently, I was working on the serial communication between two devices and I found that these two devices are not working on same voltages. That’s why the signal generated from one device will not be read correctly from the other device. It means we need a voltage...

AC Power Measurement

Introduction A whole house energy monitor measures the energy used by appliances connected to the house mains. To understand how it does this work, it is useful to know something about how appliances interact with the electrical system. Not all appliances interact...