This is an improved version of Jeremy's Oscilloscope. Features include: - View, measure, and capture waveform in real time - Automatically calculate frequency, Vpp, and DC offset - Frequency from 0.1Hz to 20kHz - Input voltage from +/-1mV to +/-20V - ADC resolution: 8 to 10 bits (depending on sampling rate) - Sampling rate up to 50kHz - 16 different T/div from 5sec to 50us - 10 different V/div from 5V to 5mV - Powered by micro-USB cable - Providing charging power to the Android phone/tablet