The DSO138 Digital Oscilloscope Kit is designed around an ARM Cortex-M3 processor (STM32F103C8) and a 2.4-inch color TFT display. Delivered as an unassembled (or pre-soldered mainboard depending on variant) educational kit, it introduces users to surface-mount and through-hole soldering while providing a fully functional handheld oscilloscope for observing low-frequency audio and digital waveforms.
Key Features
Educational DIY Assembly: Great hands-on project for learning soldering techniques and understanding oscilloscope hardware architecture.
Color TFT Display: Clear 2.4-inch display showing real-time waveform parameters like frequency, period, duty cycle, and peak-to-peak voltage.
Adjustable Timebase & Sensitivity: Vertical sensitivity and horizontal timebase controls with auto, regular, and one-shot trigger modes.
Built-in Test Signal: Includes a 1KHz / 3.3V test square wave signal generator output for quick probe calibration.
Technical Specifications
Feature
Specification
Max Real-Time Sampling Rate
1 Msps
Analog Bandwidth
0 – 200 kHz
Sensitivity Range
10mV/div – 5V/div
Max Input Voltage
50Vpk (1:1 probe), 400Vpk (10:1 probe)
Power Supply
9V DC (8V – 12V recommended)
Processor
ARM Cortex-M3 (STM32F103C8)
Weight
1450 g
Dimensions
10 × 10 × 10 cm
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