Digital GLCD Oscilloscope with 650KSPS

Figure 1 

The project aims to create a digital GLCD oscilloscope with a speed of about 650,000 samples per second or showing around 60 KHz frequency signal.

This 650KSPS digital GLCD oscilloscope contains some possibilities that cannot be compared with any other types such as PC sound card oscilloscope or LED oscilloscope since it has the options for activating gridding, division, or other factors. The records can be saved by adding an external serial EEPROM. The design of the circuit involves the use of easily available components with low prices. The whole device has 1M Ohm of high input impedance.

The oscilloscope features the Trigger level as well as Volt Division and Time Division. The voltage values in the range of +/- 0.1 to 250V can be shown while all the operation of the system is in digital format. An external ADC0820 converter chip, aside from the built-in one, is used to increase the speed. The AVR speed and the ADC contribute to limiting the speed of the oscilloscope. An external Quartz clock generator with 16MHz maximum speed is included in the ATmega32 microcontroller. The display used is a 64×128 pixel dots graphical LCD screen.

Rest of the project