I use it for educational purposes to show fellow ham's the usage of a (Nano)VNA during club meetings and courses.

The reason I bought this from Jason is because of bad experience with the Rf Demo Kit for NanoVNA boards using UFL connectors. UFL connectors aren't made for multiple insertions. This PCB uses normal SMA PCB connectors and can be used over and over again (professional specs say 500 times, but for hobby and education, they may last a lifetime).

The used components are standard, and the more difficult components (BPF and BSF), you can buy them at digikey or mouser. Our you could do like I did, de-soldered from the now un-used Rf Demo Kit I had laying around (the one with damaged UFL connectors).

Depotbg Id 15316 | March 6, 2023

Very good product

For AVR-HF QRP Trx ADX - FT4-FT8-JS8-WSPR

Good packaging of the shipment. It works very well after calibration.
Perfect communication with the seller. I highly recommend.

Thanks !

Bohuslav | Dec. 5, 2022

The transport from Malta to the Czech Republic took too long

For SI4735-D60 All Band radio - ESP32- TFT -P.C.B

The shipment arrived fine. PCB and manual excellent. Communication with the seller is good. I am satisfied.

Algimantas | Oct. 13, 2022

product is perfect

For SI4735 D60 TFT 2.8" ESP32 ALL BAND RADIO

I am fully satisfied with SI4735 D60 TFT 2.8" ESP32 ALL BAND RADIO, and will use it with an external preselector/preamplifier for better reception

Paulusjacobus | July 9, 2022

Great little reflow oven controller

For Reflow Oven Controller Universal Board Ver 2.01

This is a nice and great build for everyone! Well built and compact format so fits in a tiny box. I used a $12 K type thermocouple since others were 4x the price. The issue with thermocouples is that they create a tiny voltage (around 40 micro volts) so they are susceptible to noise especially at the screw terminals. So I had a few go's at that to get it to work properly. Also I built in a simple pc fan to cool the toaster oven down fast. I guess adding these tips to the manual would complete this kit. I would love to get a look at the source code. Initially to fix my thermocouple issues but lucky enough no source code forced me to research. So I learned something here as well (research, research and research before hammer and duct tape approach. :) ). Well done Jason Kits.

Dawid | June 3, 2021

Good product, works fine.

For 3DPRINTER Filament Width Sensor Kit V4

Works great.

The Kit is easy to assemble, aside from the tiny SMD capacitors. Those are tricky to solder and make it more complicated, but its doable with a little soldering experience and a set of fine tweezers.

Values for R3 and R4 in the schematic are switched. The Documentation for Version 4 shows the correct steps: R1, R2, R3 are 1k and R4 is 10k.

Reported filament width is ok and the calibration button works.

If you have issues with wrong filament width and/or calibration does not work correctly, try to use an external, stable power supply. I power the sensor via my raspberry pi and it works fine. If I power it via my SKR 2, the reported width is too small. Printer mainboards often do not put out stable 5V or do not provide enough current for the board.

If you print the case at home, print it with black filament. If the holes for the Filament are too small, take a 2 mm drill bit or small screwdriver, heat it up with a lighter and push it through the hole.

Shipping took very long, but I guess due to Corona everything gets delayed. Excellent communication with the seller.

Amitabh | Aug. 8, 2019

Great value for the money!

For Reflow Oven Controller Universal Board Ver 2.01

Had some issues getting the temp sensor working, which I'm now guessing had to do with grounding issues in my oven itself. The kit itself is great, the user interface is simple and intuitive. The documentation of wiring could use an update and I couldn't find the source code anywhere.

But the kit works great if you just want to reflow some boards. I made a 3d printed stand and mounted the controller on the oven itself. You can find the mount here- https://www.thingiverse.com/thing:3797144

Response from JasonKits | Aug. 8, 2019

Thanks for your review

Source code is available on request !

Hermann | July 22, 2019

Works good for a DIY Sensor

For 3D Printer Filament width Sensor PCB Kit

I ordered just the Kit because I do a lot of soldering for my projects. But mostly through hole components.
But like in the manual the soldering of the LCD chip is very easy. I didn't expect it to work, because it seemed like no solder was going under the chip. But it works.
Soldering the SMD capacitors I was a bit fooled by the pictures on the product page. First I soldered them in the through hole place.
Also it wasn't very clear how to orient the ATiny85 chip. This should be documented better in the instructions.

First I printed the case in red PLA. It worked by daylight was interfering with the reading. Also I printed the Remix version of the top to fit PTFE tubes and fittings. Now that I printed it in pure black the sensor seems less affected by daylight.
It took me also a while where to put the shutter from the print (didn't notice what that part would be). Here also would help a description in the manual.

The sensor is connected to a Bigtreetech SKR1.3 board. This can only handle 3.3V on analog Inputs. Since there is now Filament with more than 3.3mm diameter it would be cool if the output is limited to 3.3V. My board I protected with a 3.3v zener diode.

Thank you for this design.
I'm printing now for a while with crappy PLA (1,7-1,9mm diameter) and the prints turn out good so far. The live adjustment looks also very good.

Jose | June 7, 2019

Good sensor

For 3DPrinter Filament Diameter Width Sensor Assembled

It is a little difficult to connect to the GT2560 board. You must to do a weld and it is not so easy. You must also know the board pinout to select the proper pin and assign it in Marlin.
Then a better info from the seller would be very useful for the user.
The device runs perfectly and it is a good option to forgive the filament width issues.

Paul | March 15, 2019

Working as intended

For 3D Printer Filament width Sensor PCB Kit

I was initially apprehensive about soldering the tiny little sensor onto the board but it turned out to be really easy as the instructions were clear and helpful. Aside from some slight confusion with the SMD capacitors with the extra through holes, which turned out to be a blessing in disguise ( I am really bad at SMD ) it all went together. In total, 4 kits were purchased and assembled by myself and a friend and we had 100% success rate.

As to whether or not it is improving my print quality.... That isn't really the point.

Marrion | Aug. 24, 2018

Excellent

For 3DPrinter Filament Diameter Width Sensor Assembled

Product works as expected. Overall assembly is very professional and looks great.
Seller is very helpful and swiftly responds to any queries.

Ruslan | July 25, 2018

Ruslan

For 3DPrinter Filament Diameter Width Sensor Assembled

Все хорошо.. Спасибо все получил быстро.. Сам датчик на 3+..
All is well .. Thank you all received quickly .. The sensor itself is for 3+ ..

Tindie

JasonKits

Overall Rating:

Review Breakdown

Average Ratings

All Reviews

The best Nano VNA Test Board you can get.

Very good product

The transport from Malta to the Czech Republic took too long

product is perfect

Great little reflow oven controller

Good product, works fine.

Great value for the money!

Response from JasonKits | Aug. 8, 2019

Works good for a DIY Sensor

Good sensor

Working as intended

Excellent

Ruslan