ADSO is a digital storage oscilloscope running on an arduino microcontroller. It samples, stores and analyses an electrical signal in a very user-friendly way.
Buy an arduino, some hardware (OLED-display, keys, some resistors for a probe), solder all parts, install the arduino software (IDE including appropriate libraries) on your PC and compile/upload "adso.ino" to your arduino.
- Samples signals on one channel up to 500 Hz and 50 Volts
- Shows signal graphically (80x64 pixel respective 10x8 divisions) as pixmap or polygon
- Selectable scales (Volts per division, ms per division)
- 1:1 and 10:1 probe
- Triggering of periodic signals (selectable trigger level)
- Selectable x and y offset
- Reference signals: rectangular, PWD-output, 5V, 3.3V, GND
- Hold/Save/Load/Reset signal and adjustments (permanent via EEPROM)
- Fourier transformation (frequency analysis and harmonics)
- Accuracy: As the signal is shown with a pixmap with 80x64 pixels - a difference of one pixel implies a deviation of more than 1.5%.
- Bandwidth: Due to limited sample/converting-performance and several calculations the arduino microcontroller can handle signals up to 500 Hz.
- Measures up to 50V input voltage - more at your own risk with another probe (i.e. 100:1 with 1MOhm-resistor to 10:1-input)