Re: Which I2C address does the 320x240 TFT display on the v6 use?
Gordon, The I2C is brought out on a connector (similar to the ubitx wire connectors). It has 5 pins : GND,?+3.3v, 5V, A5, A4. You can connect any I2C device to it. More in an hour?or so. - f
On Thu, Mar 26, 2020 at 11:23 AM AC9NM - Jerry Ponko < ac9nm.jp@...> wrote: The tft display uses the SPI bus and not the I2C bus. The only conflict on the I2C bus I can think of would be with the Si5351 which is at address 0x60.
Jerry
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Re: Which I2C address does the 320x240 TFT display on the v6 use?
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On Thu, Mar 26, 2020 at 11:23 AM AC9NM - Jerry Ponko < ac9nm.jp@...> wrote: The tft display uses the SPI bus and not the I2C bus. The only conflict on the I2C bus I can think of would be with the Si5351 which is at address 0x60.
Jerry
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Re: Which I2C address does the 320x240 TFT display on the v6 use?
Consider his code:
XPT2046_Touchscreen ts(CS_PIN);
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);
The ILI9341 is usually associated with SPI interfaces, so doesn't use a slave address.
Jack, W8TEE
On Thursday, March 26, 2020, 11:17:29 AM EDT, Evan Hand <elhandjr@...> wrote:
Could you not get the address from the github source code?
73
Evan
AC9TU
-- Jack, W8TEE
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Re: Which I2C address does the 320x240 TFT display on the v6 use?
The tft display uses the SPI bus and not the I2C bus. The only conflict on the I2C bus I can think of would be with the Si5351 which is at address 0x60.
Jerry
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Re: Which I2C address does the 320x240 TFT display on the v6 use?
Could you not get the address from the github source code?
73
Evan
AC9TU
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same problem in my ubitx how can solve
Error receive length = 0/1027
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This is our draft of a Double-Double Mag Loop, which was just published in Rad Com. Note how it results in much higher efficiencies.
Jack, W8TEE
On Thursday, March 26, 2020, 10:36:23 AM EDT, McRuss via Groups.Io <wtrrtw@...> wrote:
Vic, I took a look at your setup, nice.? The case you are using is the same I have on order for my V6.? Any issues with it and did you use the 3D face-plate or cut your own out?? I intend to try cutting my own but will fall back on the 'ready made' if all else fails.? Glad your loop works well, the commercial model I tried must have been defective because I could never get the SWRs out of the red!
--
Russ
K5FJR
-- Jack, W8TEE
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Vic, I took a look at your setup, nice.? The case you are using is the same I have on order for my V6.? Any issues with it and did you use the 3D face-plate or cut your own out?? I intend to try cutting my own but will fall back on the 'ready made' if all else fails.? Glad your loop works well, the commercial model I tried must have been defective because I could never get the SWRs out of the red!
--
Russ
K5FJR
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Which I2C address does the 320x240 TFT display on the v6 use?
I don't completely understand the I2c and need to get a pressure transducer that doesn't conflict with the I2C address of the TFT display that Ashar is using.
Can anyone explain to me which I2C address NOT to purchase on the pressure transducers?? ?They come in multiple different (fixed) I2C addresses.
thanks, sorry for the dumb quesiton but time limited here.
Gordon
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Steve, the loop works pretty well, but it is a loop so the "capture area" is a lot less than a dipole and the signals are lower. Tuning is actually pretty easy at lower frequencies and just tuning by peaking the noise in the receiver it will be pretty much dead on with under 1.5:1 SWR. At higher frequencies body capacitance seems to affect it and it gets a little more touchy, but you learn to peak the noise, check SWR, then make a small adjustment in the opposite direction and you are pretty much on. I made the mod to be able to check SWR on screen on my V4 with the CEC software and that makes for a very compact portable package. The rig, the antenna with the PVC arms broken down, a small tripod, and a small 12v Lithium battery all fit in a small cloth briefcase. I made a couple of small WSPR beacon transmission indoors on a table at the Virginia FrostFest in February to demonstrate it and had signals reported back from the west coast. You can see the setup here:
=Vic=
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Re: Okay last time questions and then i quit
I know that there are some people in the nabourhood with licence(i spotted them on FT8 ) but with the corona crisis i have to be patience....But i am gonna try today again. Thx fot tips and trucs,?
Regards
Rene
Netherlands
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Re: Okay last time questions and then i quit
Okay Jonathan thx for feedback,and yes i use earphones so.....taday maybe a new try...regards
Rene
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Re: #v6 question on uploading software
#v6
Hi Ralph,
The browser is only needed for downloading the Arduino software and uBiTX source code. Once you have downloaded and installed the Arduino software, you will run it to upload to the compiled source code to the Arduino Nano in the radio.
Reed
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with all cost cutting that is in fashion in recent times and a
lot of RFI to have to fight to find and fight harder to get it
fixed sometimes loop is only way left to cut down a lot of
interference. It is why I built a 20 M loop? just give this remote
sdr a listen to hear real RFI??
Gud DX 73? stay safe
Andy
On 2020-03-25 9:24 p.m., Alex Netherton
wrote:
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I will reply to this, but I may not be liked for it.
The antenna that is used as a reference for most other antennas is
the half wave dipole. It just works. Anything else is generally a
compromise. Some antennas like a center fed doublet, fed with
twinlead work fine on all bands, but you still have some
tradeoffs.?
The problem with loops is that they are often? a fraction of a
wavelength on the lower bands,, so when you try to transmit on 40,
your losses are horrible.
It is not that hard to do a portable end fed antenna,? just wind
it up and slip it in the pack, and carry it up the mountain.
Deployment is a cinch if there are any trees around, and if not, a
couple of tent poles will do.
Loops are nice, but at the price, I cannot justify shelling out
for something that is not as efficient as a dipole, and actually
has to be setup when I get there too.
Just sayin'...
--
Alex Netherton, W5ALX
Buncombe County NC, EM85ro
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I will reply to this, but I may not be liked for it.
The antenna that is used as a reference for most other antennas is the half wave dipole. It just works. Anything else is generally a compromise. Some antennas like a center fed doublet, fed with twinlead work fine on all bands, but you still have some tradeoffs.?
The problem with loops is that they are often? a fraction of a wavelength on the lower bands,, so when you try to transmit on 40, your losses are horrible.
It is not that hard to do a portable end fed antenna,? just wind it up and slip it in the pack, and carry it up the mountain. Deployment is a cinch if there are any trees around, and if not, a couple of tent poles will do.
Loops are nice, but at the price, I cannot justify shelling out for something that is not as efficient as a dipole, and actually has to be setup when I get there too.
Just sayin'...
--
Alex Netherton, W5ALX
Buncombe County NC, EM85ro
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You could try posting your question to the loop antennas group
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Re: Homebrewing a uBITX according to M0HYT
"They are normally clear-coated..."? Oops, I should have wrote, "They are normally not coated.."
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Re: Homebrewing a uBITX according to M0HYT
A bit of mix up there,
HF transformers, unless they are for tuned designs, are normally of ferrite material.? They are normally clear-coated, and most often type 43 material unless for the upper end of the HF spectrum and then 61 is used more often.
Powdered iron cores are normally for tuned and not wideband use:? their Al value is more precise and does not change a lot with temperature.? Type 6 (yellow coated) material or type 2 (red coated) are most often used in HF.
Note: on some of the bitx transformers, they are wound trifilar but only two windings are used.? So some can be wound bifilar (if you want to save on wire and lessen the chance of getting the ends mixed up).
73,
Mark
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Thanks but as I said, I¡¯m going to be undergoing & then recovering from chemo and radiation therapy. I don¡¯t want to build anything else, I just want to play. But thanks a bunch for your suggestions. Perhaps somebody who¡¯s looking for an experiment Will read my post and make good use of your ideas.
73¡¯s, Steve, KC1ASO
Steve
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On Mar 25, 2020, at 15:56, Laurence Oberman <oberman.l@...> wrote:
?Dennis,
That is an awesome last name to have when you give Antenna advice.
Makes me smile every time I see it.
For those who dont know
On Wed, Mar 25, 2020 at 3:33 PM Dennis Beverage <Sodypop@...> wrote:
OR, explore building one by scanning for loop antenna projects at ARRL.com. They have published articles on a couple of very good ones over the past year or so.
--
Sodypop?
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Dennis,
That is an awesome last name to have when you give Antenna advice.
Makes me smile every time I see it.
For those who dont know
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On Wed, Mar 25, 2020 at 3:33 PM Dennis Beverage <Sodypop@...> wrote:
OR, explore building one by scanning for loop antenna projects at ARRL.com. They have published articles on a couple of very good ones over the past year or so.
--
Sodypop?
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Vic WA4THR
Alex Netherton
Bob Benedict, KD8CGH