1. Introduction
The BSIDE O2 is a dual-channel touch-screen digital oscilloscope and signal generator designed for maintenance and R&D professionals. This compact device integrates two primary functions: a high-performance oscilloscope and a versatile signal generator.
The oscilloscope features an FPGA+MCU+ADC hardware architecture, offering a real-time sampling rate of 250MSa/s and an analog bandwidth of 50MHz. It includes a built-in high-voltage protection module, supporting a maximum peak voltage measurement of ±400V. Users can capture and save waveform screenshots for secondary analysis.
The integrated DDS function signal generator can output 12 types of function signals with a maximum output frequency of 2MHz (Sine wave: 10MHz, other waveforms 5MHz) and a step of 1Hz. Output frequency, amplitude (0.1V-3.0V), and duty cycle (0-99%) are adjustable.
The device is equipped with a 3.98-inch touch display and a 3000mAh rechargeable lithium battery, providing up to 7 hours of standby time. Its small size ensures excellent portability without compromising on practical functionality.

2. Setup and Initial Use
2.1 Unboxing and Inspection
Upon receiving your BSIDE O2, carefully open the package and verify that all components are present and undamaged. The standard package includes:
- BSIDE O2 Host Unit
- Oscilloscope Probe (x1)
- Optional Oscilloscope Probe (x1, if purchased with kit)
- Multimeter Probe (x1)
- USB Type-C Cable (x1)
- Carrying Cloth Bag (x1)
- Product Manual (x1)
- Warranty Card (x1)

2.2 Charging the Device
Before first use, ensure the device is fully charged. Connect the provided USB Type-C cable to the device's charging port and a compatible 5V/2A USB power adapter (not included). The battery indicator on the screen will show charging status.

2.3 Powering On/Off
To power on the device, press and hold the power button located on the side. To power off, press and hold the power button again. The device also features an automatic power-off function to conserve battery life.
2.4 Language Selection
The device supports both Chinese and English languages. To change the language, long press the menu key to enter the menu, navigate to 'language selection', and select your preferred language.

3. Operating Instructions
The BSIDE O2 features a 3.98-inch resistive touch screen for intuitive operation, complemented by a function wheel for precise adjustments.

3.1 Oscilloscope Function
The oscilloscope mode allows for detailed waveform analysis. Connect the oscilloscope probes to the OSC 1 and OSC 2 inputs on the device and to the circuit under test.
3.1.1 Screen Elements and Menu Navigation
The main screen displays various parameters and the waveform. Navigation is primarily done via touch and the function wheel.

Key Screen Elements:
- Channel: CH1, CH2
- Running Status: Indicates if the oscilloscope is actively measuring.
- Voltage Scale: Vertical scale for voltage.
- Time Base: Horizontal scale for time.
- Trigger Level: Threshold for triggering waveform capture.
- Measured Data: Period, frequency, peak-to-peak value, max/min value, average, effective value, amplitude, duty cycle, pulse width.
Menu Structure:
- Main Menu: Access settings for VOLT, TIME, MOVE, TRIGGER, CURSOR, MEASURE.
- Accessibility Menu: Includes options for Calibrate, Default, USB Source, Version, Image, Cursor, Measure, Output, Setting, Display, Persist, Format, BL time.
3.1.2 Adjusting Parameters
Use the touch screen to select parameters and the function wheel or on-screen numeric keypad for adjustments. For example, to adjust frequency or amplitude in signal generator mode, tap the corresponding field and use the keypad.
3.1.3 Waveform Display Modes
The device supports XY, YT, and Scroll waveform display modes. Select the appropriate mode from the menu for your analysis needs.
3.1.4 Math Calculations
Perform mathematical operations on waveforms, including 1+2, 1-2, 1*2, 1/2, -1, -2, |1|, |2|, and FFT (Fast Fourier Transform).
3.1.5 Waveform Saving and Export
The BSIDE O2 has a built-in 120Mbit storage space, capable of storing up to 250 waveforms and 90 screenshots. These can be easily viewed on the device or exported to a computer via the USB Type-C cable for further analysis.

3.2 Signal Generator Function
The integrated DDS function signal generator can output various waveforms. Connect the multimeter probe to the output port for signal generation.
3.2.1 Waveform Types
The signal generator supports 12 types of function signals:
- Sinusoidal wave
- Square wave
- Sawtooth wave
- Half wave
- Full wave
- Positive step wave
- Negative step wave
- DC signal
- Exponential rise
- Exponential fall
- Multi-audio
- Sync pulse


3.2.2 Adjusting Signal Parameters
In signal generator mode, you can adjust the frequency (0-2MHz), amplitude (0.1V-3.0V), and duty cycle (0-99%) using the touch screen and numeric keypad.
4. Maintenance
4.1 General Care
- Keep the device clean and free from dust and moisture. Use a soft, dry cloth for cleaning.
- Avoid exposing the device to extreme temperatures or direct sunlight.
- Store the device in its carrying cloth bag when not in use to protect it from scratches and impacts.
- The device features a full silicone sheath for enhanced user experience and protection.

4.2 Battery Care
- Charge the device regularly, even if not in frequent use, to maintain battery health.
- Avoid completely draining the battery for extended periods.
- Use only the provided USB Type-C cable and a compatible 5V/2A power adapter for charging.
4.3 Firmware Upgrades
The device supports firmware upgrades. Check the manufacturer's website for the latest firmware versions and instructions on how to update your device.
5. Troubleshooting
If you encounter issues with your BSIDE O2, refer to the following common problems and solutions:
- Device does not power on: Ensure the battery is charged. Connect the device to a power source using the USB Type-C cable and try again.
- Screen is unresponsive: Perform a soft reset by holding the power button for an extended period (e.g., 10-15 seconds) until the device restarts. Ensure the screen protector is properly applied or removed if it interferes with touch.
- Inaccurate readings: Check probe connections and ensure they are securely attached. Verify probe attenuation settings (1x/10x) match the physical probe. Perform a calibration if available in the settings menu.
- No signal output from generator: Ensure the signal generator function is enabled and parameters (frequency, amplitude, duty cycle) are correctly set. Check the connection of the multimeter probe.
- Device freezes or crashes: Try restarting the device. If the issue persists, consider performing a factory reset (refer to the manual's 'Accessibility Menu' for options) or updating the firmware.
6. Specifications
| Category | Characteristic | Instruction/Value |
|---|---|---|
| Oscilloscope | Channel | Dual channel |
| Analog Bandwidth | 50MHz | |
| Real-time Sample Rate | 250MSa/s | |
| Storage Depth | Up to 128kByte | |
| Input Impedance | 1MΩ | |
| Time Base Range | 10ns/div - 20s/div | |
| Vertical Sensitivity | 10mv/div - 20v/div | |
| Time Base Accuracy | 20ppm | |
| Maximum Measured Voltage | ±400V | |
| Probe | 1x/10x | |
| Signal Generator | Channel | Single channel |
| Frequency | 0-2MHz (Sine: 10MHz, others: 5MHz) | |
| Amplitude | 0.1V-3.0V | |
| Square Wave Duty Cycle | 0-99% | |
| Signal Types | 12 types (Sine, Square, Sawtooth, Half, Full, Step, DC, Exp. Rise/Fall, Multi-audio, Sync Pulse) | |
| General | Display Size & Resolution | 3.98 Inch (480*272 pixels) |
| Screen Material | Tempered glass + TFT color screen | |
| Power Supply | TYPE-C (5V/2A) | |
| Battery | 3000mAh lithium battery | |
| Product Size | Approx. 170 x 81 x 24mm | |
| Product Net Weight | Approx. 268g |

7. User Tips
- For optimal performance, ensure probes are properly calibrated before critical measurements.
- Utilize the waveform saving feature to document your findings, especially for intermittent signals or comparative analysis.
- When using the signal generator, start with low amplitude settings and gradually increase to avoid damaging sensitive circuits.
- The compact size makes it ideal for field work; always use the carrying case for protection during transport.
8. Warranty and Support
The BSIDE O2 comes with a 12-month warranty from the date of purchase. Please retain your purchase receipt and the warranty card for any warranty claims.
For technical support, troubleshooting assistance, or warranty inquiries, please contact BSIDE Official Store customer service. Refer to the contact information provided in your product packaging or on the official BSIDE website.

























