I got my SAA2 a few days ago, the bare bones version from tindie.
BTW, is feedback expected at tindie? Found no mechanism on their page, but I'm not registered, so...
I have already ordered a battery before, so I connected it, and it works. A bit clumsy that there is no option to fasten the battery. I have just put it between the two boards, will probably use some two sided sticky tape.
Also thinking of soldering together a case out of 1mm FR4 material. Does anybody have experience if a metal (copper clad) case will cause any degradation?
Why are the LEDs lit for some time after power off? That's pretty confusing, especially when first encountered.
When I'll find some time, I hope to do some tests and write a short review.
Marko Cebokli
|
Re: Android NanoVNA WebApp
The forum Wiki has all the info you'll need to use the nanoVNA
- - Please use it - -
There is a link at the bottom of every forum email sent out.
toggle quoted message
Show quoted text
On Tuesday, May 26, 2020, 5:56:23 a.m. GMT-4, tuckvk3cca <tuckvk3cca@...> wrote:
Didn't know there is a Phone App for the nanovna. Where can I find it?
|
Re: Android NanoVNA WebApp
Didn't know there is a Phone App for the nanovna. Where can I find it?
|
Thank you, avvidclif, agreed on your point (shielding from stray signals
and interference). For whatever's worth, my initial state of confusion was
to the lack of identifying markings, or accompanying guidelines, on the
standards. Once helpful members here described a bit in more detail how I'm
supposed to think about it, it all made total sense.
I'm hopeful my systematic errors with filters measurements will also get
some insightful light shed on them too here. I'm currently risking running
out of time with the vendor, in case I'm dealing with a defective unit.
Thank you all,
Radu.
<>
Virus-free.
www.avg.com
<>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
toggle quoted message
Show quoted text
On Sun, May 24, 2020 at 4:47 PM avvidclif <clif@...> wrote: On the previous question about why using the OPEN cal standard instead of
nothing. The standard prevents the ingress of any stray RF that might be
floating around.
|
Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
On Mon, May 25, 2020 at 01:28 PM, hwalker wrote: Good point DiSlord. The S-A-A-V2 has a 18-pin socket for plugging the display
module into, which makes assembly and changing to different display sizes
hassle free - as long as the firmware supports the display.
Changing the display of the -H or -H4 is another matter and requires above
average soldering skills and tools. One slip and you might as well purchase a
new unit. In the States you can get a NanoVNA-H4 for $59 USD delivered in 3-4
days, almost not worth the hassle except for the learning experience.
- Herb
For S-A-A-V2 situation more easy, it use not only display module, it use PCB board vs module, all PCB board have standart pins 4` ST7796S display module on board 2.8` ILI9341 display module on board 3.2` ILI9341 display module on board They have equal pin connector, and can be easy replaced (have only board size problems) Also need order module vs XPT2046 touch And yes ST7796S and ILI9341 drivers should be supported by software.
|
Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
On Mon, May 25, 2020 at 12:56 PM, Larry Rothman wrote:
Since the F303 was a drop-in upgrade from the F072, all the pinouts remained
the same.
I have attached portions of the H and H4 schematics - the SD card interface?
from the uP is the same for both boards.
...Larry
Then possible try build H version vs SD Card support, possibly in future i do it At this moment i get one problem RTC clock on STM32. Then use internal oscillator not run then power off, and not possible fix it, so timer settings not valid after power on For fix this need use external oscillator for RTC on MCU pin Pin 3 - PC14 - OSC32_IN
Pin 4 - PC15 - OSC32_OUT Easy way to install it use P3 connector and olc clock 32768 oscillator For additional need enable use LSE by software. But need detect installed external osc, and if it not present enable internal mode (but in this mode clock not show correct time). At this moment i only enable LSE, it correctly run, not reset on power off (only if remove battery)
|
Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
On Mon, May 25, 2020 at 12:28 PM, DiSlord wrote:
"You should understand
1 - Most Display module for H4 (ST7796S driver) like this
Have 40pin connector
H version use ILI9341 module like this
Have 18 pin connector"
=============================================
Good point DiSlord. The S-A-A-V2 has a 18-pin socket for plugging the display module into, which makes assembly and changing to different display sizes hassle free - as long as the firmware supports the display.
Changing the display of the -H or -H4 is another matter and requires above average soldering skills and tools. One slip and you might as well purchase a new unit. In the States you can get a NanoVNA-H4 for $59 USD delivered in 3-4 days, almost not worth the hassle except for the learning experience.
- Herb
|
Aleks,
Two suggestions from your photo:
1. Calibrate the unit. The NanoVNA-V2 does not interpolate between points when you change frequency settings and forces you to re-calibrate to the new frequency range for accuracy. When you power the V2 up it does not automatically recall "Save 0" settings. You have to manually "Recall 0" yourself.
2. The NanoVNA-V2 defaults to 101 pts. For increased accuracy change the range to 201 pts.
I haven't seen a translation of the NanoVNA-V2 manual to Cyrillic. Maybe you could help some of the USSR users by doing so.
- Herb
|
Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
Since the F303 was a drop-in upgrade from the F072, all the pinouts remained the same.
I have attached portions of the H and H4 schematics - the SD card interface? from the uP is the same for both boards.
...Larry
toggle quoted message
Show quoted text
On Monday, May 25, 2020, 3:54:13 p.m. GMT-4, Larry Rothman <nlroth@...> wrote: Since the F303 was a drop-in upgrade from the F072, all the pinouts remained the same. I have attached portions of the H and H4 schematics - the SD card interface? from the uP is the same for both boards. ...Larry ? ? On Monday, May 25, 2020, 3:28:22 p.m. GMT-4, DiSlord <dislordlive@...> wrote: On Mon, May 25, 2020 at 10:03 AM, Larry Rothman wrote:
? The Gekko version of the early nanoVNAs had the solder pads for an SD card
slot - look at my forum photo from almost a year ago.
I actually added a slot to mine but then sold the unit and bought a better
made one (no SD pads).
/g/nanovna-users/message/223
I have ordered an ST32F303 and I'm looking for the proper LCD panel so that I
can convert my H into an H4.
I will add an SD slot to the PCB as well.
...Larry
? ? On Monday, May 25, 2020, 12:50:54 p.m. GMT-4, DiSlord
<dislordlive@...> wrote:
? No for H need compile its own firmware, it have about 14kB free flash. Only
Fat32 and short filenames need ~10kB (but i don`t test this for H firmware)
Also H version not have SD slot on PCB board, need add it, but this difficult
for me (for my test).
?
If SD card on this board connected as on H4 board, possible compile firmware version for H vs SD Card support I have ordered an ST32F303 and I'm looking for the proper LCD panel so that I can convert my H into an H4. You should understand 1 - Most Display module for H4 (ST7796S driver) like this Have 40pin connector H version use ILI9341 module like this Have 18 pin connector Yes possible replace it, but ... i don`t know, you have to overcome many difficulties
|
Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
On Mon, May 25, 2020 at 10:03 AM, Larry Rothman wrote:
The Gekko version of the early nanoVNAs had the solder pads for an SD card
slot - look at my forum photo from almost a year ago.
I actually added a slot to mine but then sold the unit and bought a better
made one (no SD pads).
/g/nanovna-users/message/223
I have ordered an ST32F303 and I'm looking for the proper LCD panel so that I
can convert my H into an H4.
I will add an SD slot to the PCB as well.
...Larry
On Monday, May 25, 2020, 12:50:54 p.m. GMT-4, DiSlord
<dislordlive@...> wrote:
No for H need compile its own firmware, it have about 14kB free flash. Only
Fat32 and short filenames need ~10kB (but i don`t test this for H firmware)
Also H version not have SD slot on PCB board, need add it, but this difficult
for me (for my test).
If SD card on this board connected as on H4 board, possible compile firmware version for H vs SD Card support I have ordered an ST32F303 and I'm looking for the proper LCD panel so that I can convert my H into an H4. You should understand 1 - Most Display module for H4 (ST7796S driver) like this Have 40pin connector H version use ILI9341 module like this Have 18 pin connector Yes possible replace it, but ... i don`t know, you have to overcome many difficulties
|
|
|
Re: Android NanoVNA WebApp
Did you select the Menu (3 bars, top left of screen)?
Trace settings are there.
toggle quoted message
Show quoted text
On Monday, May 25, 2020, 1:24:30 p.m. GMT-4, travlytle@... <travlytle@...> wrote:
I have this app working on my phone, but I can't figure out how to change traces.? I click on a different trace bubble near the top and it just takes me to the settings for that trace.? I'm assuming I'm missing something stupid here, can anyone help?
|
I have this app working on my phone, but I can't figure out how to change traces. I click on a different trace bubble near the top and it just takes me to the settings for that trace. I'm assuming I'm missing something stupid here, can anyone help?
|
Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
The Gekko version of the early nanoVNAs had the solder pads for an SD card slot - look at my forum photo from almost a year ago. I actually added a slot to mine but then sold the unit and bought a better made one (no SD pads). /g/nanovna-users/message/223I have ordered an ST32F303 and I'm looking for the proper LCD panel so that I can convert my H into an H4. I will add an SD slot to the PCB as well. ...Larry
On Monday, May 25, 2020, 12:50:54 p.m. GMT-4, DiSlord <dislordlive@...> wrote:
No for H need compile its own firmware, it have about 14kB free flash. Only Fat32 and short filenames need ~10kB (but i don`t test this for H firmware)
Also H version not have SD slot on PCB board, need add it, but this difficult for me (for my test).
|
I bought the two units from Amazon Seesii USA with 2 day shipping on the
last one. Both units were labeled with 50 KHz starting frequency. But
they can start at 10 KHz if that is entered under Stimulus.
Rolf
KC6HTR
toggle quoted message
Show quoted text
On Thu, May 21, 2020 at 8:12 AM Larry Rothman <nlroth@...> wrote: Please read the forum WIKI and notes in the forum FILES sections.
You need to install the latest version of firmware for the model of Nano
you purchased.
On Thursday, May 21, 2020, 11:03:31 a.m. GMT-4, marxtech@... <
marxtech@...> wrote:
I just got my Nanovna-Hv3.4 from amazon seesii. I was ready to return it
because the back states frequency:50k-300MHz. I am looking for the 10KHz
starting frequency.
Now I see your expert review. Thanks so much!
How do I access the lowered starting frequency?
Rolf
KC6HTR
|
Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
DiSlord
And with 0.9.2 firmware I get this :
ch>? SD_SendCmd err CMD0, 0xFF, 0x00000000
?CMD0 Ok
?CMD8 Ok
?CMD8 0xAA010000
CMD8 Ok, ACMD41 99
?CMD58 OCR = 0x0080FFC0
CardType 12
filename VNA_20200525_05196.bmp
open 0
close 0
?Read? speed = 156981 Byte/s (count 13, time 424)
?Write speed = 163047 Byte/s (count 607, time 19061)
Jos
Op 25-5-2020 om 18:28 schreef DiSlord:
toggle quoted message
Show quoted text
Add support ExFAT filesystem and check work on my SD card
Samsung EVO Plus 128Gb HD XL All worked, support ExFat need additional 4kB flash and can`t be suppoted on NanoVNA-H (if add card slot in it)
But on H4 stiil more flash space (only ~89kB + 64kB for calibration save used from 256kB)
On Samsung EVO Plus 128Gb HD XL read speed ~300kB/sec write ~190kB/s
|
Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
No for H need compile its own firmware, it have about 14kB free flash. Only Fat32 and short filenames need ~10kB (but i don`t test this for H firmware)
Also H version not have SD slot on PCB board, need add it, but this difficult for me (for my test).
|
Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
DiSlord,
With your comment below, do you mean that the non-ExFat version of your firmware that supports the SD cards should work on an H if I add an SD slot?
...Larry
toggle quoted message
Show quoted text
On Monday, May 25, 2020, 12:28:12 p.m. GMT-4, DiSlord <dislordlive@...> wrote: Add support ExFAT filesystem and check work on my SD card Samsung EVO Plus 128Gb HD XL All worked, support ExFat need additional 4kB flash and can`t be suppoted on NanoVNA-H (if add card slot in it) But on H4 stiil more flash space (only ~89kB + 64kB for calibration save? used from 256kB) On Samsung EVO Plus 128Gb HD XL read speed ~300kB/sec write ~190kB/s
|
Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
DiSlord,
With this firmware I see :
?CMD0 Ok
?CMD8 Ok
?CMD8 0xAA010000
CMD8 Ok, ACMD41 99
?CMD58 OCR = 0x0080FFC0
CardType 12
filename VNA_20200525_04212.bmp
open 0
close 0
?Read? speed = 238139 Byte/s (count 10, time 215)
?Write speed = 155634 Byte/s (count 606, time 19936)
Regards,
Jos
Op 25-5-2020 om 17:30 schreef DiSlord:
toggle quoted message
Show quoted text
Found my error in card type detect
try this
|
Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
Add support ExFAT filesystem and check work on my SD card Samsung EVO Plus 128Gb HD XL All worked, support ExFat need additional 4kB flash and can`t be suppoted on NanoVNA-H (if add card slot in it) But on H4 stiil more flash space (only ~89kB + 64kB for calibration save used from 256kB) On Samsung EVO Plus 128Gb HD XL read speed ~300kB/sec write ~190kB/s
|
F4WCV
