Congratulations to Farhan!
I would love to see Farhan as a speaker of a forum on QRP in general and on BITX20 in particular in the next Hamvention! Those who like this idea should contact the Hamvention committee and tell them about it. I am.
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Re: Raduino_v1.12 released
I just used the following: 40 Pin 2.54mm Single Row Pin Header Strip You can simply break off the number you need. I then use female to female connectors. Cut off the end you need to solder to a pot or a switch. A pack of female to female jumpers is cheaper than hookup wire. Premium Jumper Wires Female / Female 300mm Pack of 40. ? v/r Fred W4JLE ? ?
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From: [email protected] [mailto:[email protected]] On Behalf Of terryhugheskirkcudbright via Groups.Io
Sent: Sunday, May 21, 2017 15:33
To: [email protected]
Subject: Re: [BITX20] Raduino_v1.12 released ? hi ? i just looked at the taydaelectronics web page . which item did you use for the on board connector and the mating connecting terry gm4dso ? ?
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I was there. It was momentous.? Congratulations to both.
On May 21, 2017 2:23 PM, "Bill K7WXW" < k7wxw@...> wrote: This may be old news... Farhan was inducted into the QRP Hall of Fame last night, as was?Bill Meara, N2CQR. Two more generous and deserving candidates could not be found.? Congrats to both of you! ?73 de bill K7WXW
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Re: BITX Ver3 tuning issues
This is how a 10T pot shall be wired up. Note that the wiper terminal is not the one in the centre:
73 Allard PE1NWL
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Re: BITX Ver3 tuning issues
Recheck your connections. A ten turn pot has the most rearward connection as the wiper. In this case the violet wire goes to the most rearward and the yellow and green to the two pins closet to the front. ? v/r Fred W4JLE ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Sasi Nayar
Sent: Sunday, May 21, 2017 11:20
To: [email protected]
Subject: [BITX20] BITX Ver3 tuning issues ? Hi all Finally got around?finishing my BITX40 Ver3?yesterday. It passed the smoke test. Eveything seems to be OK except for the tuning. It is locked on 6.9MHz. I am using a 10T, 100K precision pot for tuning with the default pre-loaded sketch. I searched the archives and found some mention about this issue being attributed to the faulty A7 pin on? the Raduino. I cannot seem to find this message when I searched again. Any help in diagnosing / troubleshooting the issue will be appreciated. 73 Sasi VK5SN
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Re: Raduino_v1.12 released
Terry,
pin A0 is used for the PTT sense line.
Everything else in your mail is correct.
See full description at
73, Allard PE1NWL
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On Sun, May 21, 2017 19:50, terryhugheskirkcudbright via Groups.Io wrote: hi
on the picture
where does a0 go
i assume a1 goes to the key
looks like a2 is not connected
a3 goes to the function button
a4, a5, a7 go to tune pot
where does a6 go
d7 is for cw break in
d6 is for cw on
d5 is for side tone
Am i right or am i wrong
Terry GM4DSO
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Re: Raduino_v1.12 released
hi
i just looked at the taydaelectronics web page . which item did you use for the on board connector and the mating connecting terry gm4dso
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This may be old news... Farhan was inducted into the QRP Hall of Fame last night, as was?Bill Meara, N2CQR. Two more generous and deserving candidates could not be found. ?Congrats to both of you! ?73 de bill K7WXW
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Re: New BITX40 owner, and a few issues
Hi guys, I'm back with an update on my BITX40 - ongoing - project. This time I made a video showing the latest mods I made to the transceiver?(more on that on the video description), and how it sound like on RX. So, for you guys who want to have a look, here it is. I just want to mention, it was connected to an external speaker until I switched to the tiny internal one at 2:05. You will hear the difference. --- 73 from Reunion Island Etienne
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Re: Raduino_v1.12 released
I installed a row of header pins on mine. That allows the use of DuPont connectors to wire things up. The best and cheapest place to buy the connectors, header strips etc. is
It is fun to fill a bag with parts and have a bill of $10.00. As an example, I was looking for some silicon insulators for the 510 final. EBay found some folks selling them from $1.41 to $8.00 for a package of 5. Taydaeelectronics had them for $.06 each. ? v/r Fred W4JLE ? ?
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From: [email protected] [mailto:[email protected]] On Behalf Of philip yates
Sent: Sunday, May 21, 2017 07:24
To: [email protected]
Subject: Re: [BITX20] Raduino_v1.12 released ? What are those connectors called, We use HE14 connectors at work, but they are different, could do with a set. ? On Sun, May 21, 2017 at 12:16 PM, Allard PE1NWL <pe1nwl@...> wrote: The standard BITX40 board doesn't come with a connector for those pins.
I just soldered the wires directly to the board. But of course you could
install a connector for those pins if you want to.
73 Allard PE1NWL
On Sun, May 21, 2017 13:00, terryhugheskirkcudbright via Groups.Io wrote:
> hi
>
> the picture appears to show D5, D6, D7 connected directly to the board
> without a white connector. Is that right
>
> Terry GM4DSO
>
?
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Re: BITX Ver3 tuning issues
Can you put the original 10K back in the circuit (maybe you did that already) I had a 10k t10 wired up wrong and of course I couldn't tune. wired correctly No Problem since.
On Sun, May 21, 2017 at 10:27 AM, Jerry Gaffke via Groups.Io <jgaffke@...> wrote: Those pins out of the Nano are rather dainty, could have blown the Nano's IO cell if you soldered it to the pot while the wiring harness was connected to the Nano and the soldering iron wasn't quite grounded properly, ? Or perhaps just a static discharge. ? Here's the old post: ?/g/BITX20/message/20876 I'd check if the voltage into the Nano goes from 0 to 5 volts as you turn the pot before doing anything else.
On Sun, May 21, 2017 at 08:20 am, Sasi Nayar wrote:
Finally got around?finishing my BITX40 Ver3?yesterday. It passed the smoke test. Eveything seems to be OK except for the tuning. It is locked on 6.9MHz. I am using a 10T, 100K precision pot for tuning with the default pre-loaded sketch. I searched the archives and found some mention about this issue being attributed to the faulty A7 pin on? the Raduino. I cannot seem to find this message when I searched again. Any help in diagnosing / troubleshooting the issue will be appreciated.
?
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Re: BITX Ver3 tuning issues
Some may have been confused by pinout on the 10-turn pots.
On 270-degree pots the wiper is the center connection, but on
many 10-turn pots the wiper is the terminal furthest from the
mounting nut and tuning knob.
_._
On Sun, May 21, 2017 at 11:38 AM, ac2pl via Groups.Io <jeffbonanno@...> wrote: i had a similar issue, tested raduino with stock pot, worked fine. put 10 turn 10k pot in (tested good with vom) frequency went all the way up and would not respond to adjustment. swapped stock back in, worked fine. used different 10 turn 10k pot, worked fine. i triple checked wiring and soldering, so must be something off with that pot. i advise testing the board with the stock 1 turn pot before getting into it with the nano.
Jeffrey Bonanno, Ph.D., AC2PL
?jeffbonanno@...
--------------------------------------------
On Sun, 5/21/17, Allard PE1NWL <pe1nwl@...> wrote:
?Subject: Re: [BITX20] BITX Ver3 tuning issues
?To: [email protected]
?Date: Sunday, May 21, 2017, 1:29 PM
?100K is fine too.
?I'm using 100K linear and it works
?perfectly.
?73 Allard
?PE1NWL
?On Sun, May 21, 2017
?18:05, Dennis Zabawa wrote:
?> You need a
?10K l inear taper 10 turn pot.
?>
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Re: Raduino_v1.12 released
hi on the picture where does a0 go i assume a1 goes to the key looks like a2 is not connected a3 goes to the function button a4, a5, a7 go to tune pot where does a6 go d7 is for cw break in d6 is for cw on d5 is for side tone Am i right or am i wrong Terry GM4DSO
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Re: BITX Ver3 tuning issues
i had a similar issue, tested raduino with stock pot, worked fine. put 10 turn 10k pot in (tested good with vom) frequency went all the way up and would not respond to adjustment. swapped stock back in, worked fine. used different 10 turn 10k pot, worked fine. i triple checked wiring and soldering, so must be something off with that pot. i advise testing the board with the stock 1 turn pot before getting into it with the nano.
Jeffrey Bonanno, Ph.D., AC2PL
jeffbonanno@...
--------------------------------------------
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On Sun, 5/21/17, Allard PE1NWL <pe1nwl@...> wrote: Subject: Re: [BITX20] BITX Ver3 tuning issues To: [email protected] Date: Sunday, May 21, 2017, 1:29 PM 100K is fine too. I'm using 100K linear and it works perfectly. 73 Allard PE1NWL On Sun, May 21, 2017 18:05, Dennis Zabawa wrote: > You need a 10K l inear taper 10 turn pot. >
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Re: BITX Ver3 tuning issues
The pot does not have to be linear if you find the ADC input reading at
half rotation and then modify that setting in the sketch.? Tuning rate with
a tapered pot may be a bit faster in one direction versus the other one
but a few minutes with the system and your mind will adjust for that.
_._
On Sun, May 21, 2017 at 11:29 AM, Allard PE1NWL <pe1nwl@...> wrote: 100K is fine too.
I'm using 100K linear and it works perfectly.
73 Allard PE1NWL
On Sun, May 21, 2017 18:05, Dennis Zabawa wrote:
> You need a 10K l inear taper 10 turn pot.
>
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Re: BITX Ver3 tuning issues
100K is fine too.
I'm using 100K linear and it works perfectly.
73 Allard PE1NWL
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On Sun, May 21, 2017 18:05, Dennis Zabawa wrote: You need a 10K l inear taper 10 turn pot.
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Re: BITX Ver3 tuning issues
Also make sure you wire it up correctly:
73 Allard PE1NWL
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On Sun, May 21, 2017 18:05, Dennis Zabawa wrote: You need a 10K l inear taper 10 turn pot.
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Re: Scan feature, need coding help
A pair of 5K resistors in series between ground and +Vcc would set the Center rotation woltage. ?Then use a larger resistor through each switch to pull that center voltage up or down. ?Problem with this is that you would have only one tuning speed.
Arv K7HKL _-_
Sent from my Verizon, Samsung Galaxy smartphone
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-------- Original message -------- From: philip yates <phil@...> Date: 5/21/17 1:53 AM (GMT-07:00) Subject: Re: [BITX20] Scan feature, need coding help
Would also like a scan feature, could it be done from separate UP & DOWN buttons. I know that may be a bit more involved, or not ?
Just happen to use a microphone that has UP & DOWN buttons.
Also is there a version that has the S meter in the code.
Phil - G7BZD
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Re: BITX Ver3 tuning issues
Another test on the Nano is to try one of the sample programs that is shipped with the IDE. A good one that has visual feedback is Blink (File --> Examples --> 01.Basics --> Blink). After loading, it should blink the on-board LED at a one second pace. As to static discharge and the Nano, I've not had a problem with that. Of course, my shack is in the basement and I could rub two cats together and not get a spark. Still, I've never had a club member have a static issue, either.
Jack, W8TEE
From: Jerry Gaffke via Groups.Io <jgaffke@...>
To: [email protected]
Sent: Sunday, May 21, 2017 11:27 AM
Subject: Re: [BITX20] BITX Ver3 tuning issues
Those pins out of the Nano are rather dainty, could have blown the Nano's IO cell if you soldered it to the pot while the wiring harness was connected to the Nano and the soldering iron wasn't quite grounded properly, ? Or perhaps just a static discharge. ? I'd check if the voltage into the Nano goes from 0 to 5 volts as you turn the pot before doing anything else.
On Sun, May 21, 2017 at 08:20 am, Sasi Nayar wrote:
Finally got around?finishing my BITX40 Ver3?yesterday. It passed the smoke test. Eveything seems to be OK except for the tuning. It is locked on 6.9MHz. I am using a 10T, 100K precision pot for tuning with the default pre-loaded sketch. I searched the archives and found some mention about this issue being attributed to the faulty A7 pin on? the Raduino. I cannot seem to find this message when I searched again. Any help in diagnosing / troubleshooting the issue will be appreciated.
?
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Re: BITX Ver3 tuning issues
You need a 10K linear taper 10 turn pot.
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Allard PE1NWL
bill