Features 1、[Simple Oscilloscope] Consists of for tl072 analog front end processing circuit, for lm393 frequency comparator circuit, for STM32f103C8T6 single chip microcontroller circuit, human machine interaction circuit, power circuit. 2、[1.8 Inch LCD Display] Features 1.8 inch LCD color display screen, showing input signal shape, amplitude, frequency, displaying square waveform signal output state, frequency, duty cycle. 3、[BNC Input Interface] One way signal BNC input interface, with a maximum resolution of 10 bits and a sampling rate of 1 MHz. Can achieve AD or DC input coupling switching, 1:1 or 1:50 input attenuation switching. 4、[Knob Adjustment] By rotating the time base adjustment knob, adjust the signal expansion degree on the screen to view more detailed or broader waveforms. 5、[Square Waveform Output] One way square waveform signal output, 2.54 pin header interface. Can set PWM output enable, PWM frequency, PWM duty cycle through buttons. 6、[Extensible Functionality] Users can implement all functions of oscilloscope through example codes and expand them. Specification Item Type: Simple Oscilloscope Material: PCB Features: 1. BNC interface, compatible with general oscilloscope probes 2. AC and DC coupling can be switched, 1:1 and 1:50 attenuation ratios can be switched 3. Comes with square waveform signal output, adjustable duty cycle, frequency, and enable, output amplitude 3.3V, output frequency range 1KHZ~8KHZ, output duty cycle range 0%~97% 4. 10BIT resolution, 1MHz sampling rate; Input signal voltage range: ±5V (1:1 attenuation mode), ±220V (1:50 attenuation mode); Input signal frequency range 1KHZ~100KHZ (example code, if a larger measurement range is required, the example code can be modified for secondary development) 5. TYPE C interface power supply 6. 1.8 inch LCD color display screen 7. Onboard power indicator light, PWM output indicator light Package List 1 x Simple Oscilloscope 1 x Connecting Cable