A Typical Input Stage for an Analog Oscilloscope Using a Dual JFET The front end of any oscilloscope is critical to its performance, dictating how accurately and without distortion external signals are captured. For analog oscilloscopes, a common…
In this tutorial, I will show you how to easily convert any audio file into a C-Header file for your embedded systems projects using my web-based Audio to C-Header Converter tool. From there, we’ll move to the hardware side, where I’ll show you …
In proteus one can use actual audio signal from audio wav file or use microphone input from PC. One way to use real audio signal in Proteus is to use the Audio generator input probe as shown. The audio file in .wav format can be imported and set a…
The DS3231 Real-Time Clock (RTC) Module is one of the most popular and reliable time-keeping solutions for Arduino, Raspberry Pi, and other microcontroller projects. Unlike simpler RTC chips such as the DS1307, the DS3231 features a built-in temper…
Here, I demonstrate how to build a high-precision digital clock and thermometer using the DS3232 Real-Time Clock (RTC) and a 0.91-inch I2C OLED display. This project is a perfect upgrade for any embedded system that requires accurate timekeeping and…
Yesterday, I wrote briefly on a circuit which allows one to send or communicate audio using light as the communication channel. In that circuit only the NE555 Timer with the sine wave signal as input audio was used for purpose of testing. Here, I w…
Transistor biasing is fundamental skill one must master in electronics circuit design. Given that you have an electret microphone and want to output the microphone audio into a $8 \Omega$ speaker, how would you do that? There are many ways and one…
