The DSO138 Oscilloscope Kit is designed specifically for electronics education and practical training. It features an ARM Cortex-M3 processor and a color TFT screen, offering a simple yet reliable circuit with moderate assembly difficulty and a high success rate. This kit emphasizes the key components of an oscilloscope, enabling students to gain both hands-on skills and a deeper understanding of oscilloscope structure and principles. Upon completion, students not only enhance their practical skills but also acquire a functional tool for future electronics learning.
Key Features
- Comprehensive Educational Focus:
Complete documentation including schematics, assembly instructions, usage guidelines, and troubleshooting tips, ensuring a high success rate. - Varied Component Types:
Suitable for learning to identify components and practicing soldering of both through-hole and surface-mount devices (SMD). - Functional Learning Tool:
Students can use the finished oscilloscope for measuring waveforms in applications such as audio, video synchronization, low-frequency power supplies, and infrared transmission, increasing learning engagement and effectiveness. - Advanced ARM Platform:
Powered by an ARM Cortex-M3 processor (STM32F103C8) and includes a 2.4-inch color TFT display, making it suitable as an ARM development board for experimentation. - Open Source for Customization:
Source code is provided, enabling advanced users to modify the oscilloscope, such as converting it into a millivoltmeter, data logger, or other custom applications. - Reliable Circuit and Affordable Price:
The kit offers a simple and reliable design, making it accessible for a wide range of users.
Specifications
- Maximum Real-Time Sampling Rate: 1Msps
- Resolution: 12-bit
- Sampling Buffer Depth: 1024 bytes
- Analog Bandwidth: 0 - 200KHz
- Vertical Sensitivity: 10mV/Div – 5V/Div (1-2-5 increments)
- Vertical Offset Adjustment: With indicator
- Input Impedance: 1MΩ
- Maximum Input Voltage:
- 50Vpp with 1:1 probe (included)
- 400Vpp with 10:1 probe (sold separately)
- Coupling Modes: DC / AC / GND
- Time Base Range: 10μs/Div – 50s/Div (1-2-5 increments)
- Trigger Modes: Auto, Normal, and Single-shot for capturing transient waveforms
- Edge Trigger: Rising and falling edges
- Adjustable Trigger Level: With indicator
- Pre-Trigger Observation: View waveform before trigger (negative delay)
- HOLD Function: Freeze the display at any time
- Test Signal Generator: Built-in 1Hz / 3.3V square wave
- Waveform Parameters Display:
Shows frequency, period, pulse width, duty cycle, max/min values, average, peak-to-peak, and RMS values. - Waveform Save/Recall:
Waveforms remain saved even after power-off.- Enable/Disable Parameter Display: Place the cursor at the time base position and long-press the OK button.
- Save Waveform: Press SEL + + keys simultaneously.
- Recall Saved Waveform: Press SEL + - keys simultaneously.
- Test Mode:
Enter by holding the OK button while pressing RESET.- If the LED blinks rapidly, it indicates a short circuit on the microcontroller's PB or PC ports (connected to the LCD). Troubleshoot by checking for short circuits.
- If the LED blinks every 4 seconds, it suggests an open circuit on the relevant connections. Use a voltmeter to locate the fault, following the instructions in the manual.
Package Contents
- 1 × Mainboard
- 1 × Component pack
- 1 × TFT display screen
- 1 × Simple probe
- 1 × User manual
- 1 × Assembly guide
This DSO138 Oscilloscope Kit offers a perfect blend of education and functionality, making it an essential tool for both learning and practical applications in electronics.