Original JYETech 13805K DSO138mini DIY Digital Oscilloscope Kit SMD Pre-soldered 200KHz 3.5V-6V DC
52
Direct purchase from the factory 
Garantisadong Ligtas na Checkout
Libreng Regalo
Patakaran sa Pagpapadala
Patakaran sa PagbalikLibreng Regalo
Welcome to Roymall, your professional website for purchasing premium department store gifts. We highly value and appreciate your support, and we want to express our gratitude by adding an extra touch of excitement to your purchases. When you shop with us, you not only get to enjoy high-quality products that enhance your lifestyle, but you'll also receive an exclusive free gift with every order you place. Ready to explore our collection and find your perfect gifts? Browse our selection of premium department store items, place your order, and look forward to the excitement of your free gift arriving alongside your purchase.Patakaran sa Pagpapadala
We will work hard to deliver items to you after receiving your orders and make sure they arrive safely. Delivery details will be provided in your confirmation email.In most cases, orders are processed within 2 days.Under special circumstances, it will be delayed as follows: When you place an order on Saturday, Sunday or public holidays, it will be delayed for 2 days..Normally, it needs 5-7 working days (Monday to Friday) without being affected by flight delay or other environmental factors..Because our shipping service is worldwide so the delivery times will depend on your location so it may need a few times and please wait patiently if you are in remote districts or countries.1. Patakaran sa Pagbalik at Pagpapalit
We only accept items purchased from roymall.com. If you purchase from our local distributors or other retailers, you cannot return them on our side. Final sales items or free gifts are not acceptable for a return. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.After receiving return instructions from us, please package up your returned items and drop your package at the local post office or another courier.We will process your return or exchange item within 3-5 working days after we receive it. The refund will be processed and credited automatically to your original method of payment.No returns or exchanges can be accepted if the product was custom produced, including custom size, custom color, or custom printed.Need more help, please contact us. service@roymall.com or Whatsapp: +8619359849471
2.Patakaran sa Refund
You'll get a full refund or 100% store credit after we receive the returned package and check it. The refund will be processed and credited automatically to your original method of payment. Please note that shipping costs and any duties or fees are not refundable. The extra shipping costs are non-refundable once the package has been shipped. You are responsible for paying these fees and we’re unable to waive or refund them, even if the order is returned back to us.Once we received and confirmed your returned item, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.If you have any problems regarding the refund process, please contact us. service@roymall.com or Whatsapp: +8619359849471
DSO138mini brings in the following improvements:
ntBetter 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.
ntUSB 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.
ntExternal trigger input. This input can accept a TTL or LVTTL signal as trigger source.
ntSerial 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.
ntGeneral 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.
tThere are a few optional parts that can be chosen to make the oscilloscope even more complete:
ntBNC 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.
ntStandard BNC probe.
nttMajor features of DSO138mini:
nttAnalog bandwidth: 0 - 200KHz
ttSampling rate: 1Msps max
ttSensitivity: 10mV/Div - 5V/Div
ttSensitivity error: < 5%
ttVertical resolution: 12-bit
ttTimebase: 10us/Div - 500s/Div
ttRecord length: 1024 points
ttExternal trigger
ttBuilt-in 1KHz/3.3V test signal
ttWaveform frozen (HOLD) function available
ttSave/recall waveform
Note:
1. If you need lithium battery power, you need to add an additional power module.n2. This is an unsoldered kit, you need to solder it yourself.
ntttImportant Notes:
ntttThe 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.
tttIt is assumed that users have adequate soldering skills and troubleshooting skills to assemble the DSO138mini kits. It is not guaranteed that you will end up with a working device. But make as much efforts as we can to approach that goal.
nttttProduct Documents and firmwares: (Click to open)
1 x DIY Oscilloscope Kitn
n
n
