JYETech 13805K DSO138 Mini Digital Oscilloscope 200KHz DC 3.5V-6V

DSO138mini brings in the following improvements: Better structure and smaller size. The bulky pin-headers connecting the LCD and main board in old DSO138 has been eliminated. The soldering of these pin-headers has being found problematic for beginners. USB or battery powered. This makes the scope much more convenient to be used as a portable device. New version analog board (PN: 109-13801-00H, aka "H version") can accommodate a battery charger JYE118 (see here) to make the device more practical. External trigger input. This input can accept a TTL or LVTTL signal as trigger source. Serial output of waveform data. This means captured data can be saved and displayed by PC. For example, this photo shows a captured single byte (0x35) sent from a serial port at 115200bps. This photo shows the same waveform displayed on PC using Gnuplot. General controller. The main board can be used as a general purpose control board with LCD display. MCU ports were brought to board edges for easy connection to the target system. There are a few optional parts that can be chosen to make the oscilloscope even more complete: BNC connector. The kit comes with a two-pin header for the simple hook probes (see the manual). This connector replaces the two-pin header and will allow you to connect to standard professional BNC probe. Standard BNC probe. Battery charger breakout board JYE118. >>>>>>>> Product ID: 1337078 Acrylic enclosure. Please see the photo below. The instructions for enclosure assembly is here. >>>>>>>> Product ID: 1337077 Major features of DSO138mini: Analog bandwidth: 0 - 200KHz Sampling rate: 1Msps max Sensitivity: 10mV/Div - 5V/Div Sensitivity error: < 5% Vertical resolution: 12-bit Timebase: 10us/Div - 500s/Div Record length: 1024 points External trigger Built-in 1KHz/3.3V test signal Waveform frozen (HOLD) function available Save/recall waveform Important Notes: The power supply is not included in the kit. User needs to prepare a USB cable with micro-USB style plug to run the scope. Any USB port with higher than 150mA current capacity can be used as power source for the scope. Product Documents and firmwares: (Click to open) Users Manual (for "F" analog board) Users Manual (for "H" analog board) [NEW] Mainboard schematic (version H) Mainboard schematic (version I) [NEW] Analog board schematic (version F) Analog board schematic (version H) [NEW] Troubleshooting Guide Beginners How to Test DSO138mini DSO138mini: How to Upgrade Firmware DSO138mini Enclosure Assembly Guide Specifications Number of Channel 1 Analog Bandwidth 0 - 200KHz Sensitivity 10mV/Div - 5V/Div Sensitivity error < 5% Resolution 12-bit Input Impedance 1M ohm Maximum Input voltage 50Vpk Coupling DC, AC, GND Max Real-time Sampling Rate 1Msps Timebase 10us/Div - 500s/Div Record Length 1024 Trigger Modes Auto, Normal, Single Trigger Types Rising/falling edge Trigger Position 1/2 of buffer size fixed Display 2.4-inch color TFT LCD with 320 x 240 resolution Power Supply 3.5V - 6V DC Supply Current 120mA @5V Dimension 85mm x 75mm x 15mm Weight 50 gram (not including cables) Package includes: 1 x Mini Digital Oscilloscope 1 x User manual