When I had to cool a RPi, I got these fans:?
They're smaller and easier to fit in a case. But in case those are still too big, you could try these:?
I forget what I got those for, but they do move quite a bit of air.
-=-=-=-=-=-=-=-=- 73, Gwen, NG3P
On Sat, Jul 20, 2024 at 11:50?AM Joel Caulkins/N6ALT via <caulktel= [email protected]> wrote: On Wed, Jun 26, 2024 at 05:54 PM, Bob Benedict, KD8CGH wrote:
Has anyone tried this yet? I am actively looking for a way to cool my sBitx V3 Raspberry pi 4 cpu, I've had the case opened up for days trying to fit a laptop squirrel cage fans and other fans to the vent by the power plug but there just isn't enough room to fit it. I really wanted to be able to seal a fan to one of the vents so I could pull/push cool air from outside the cabinet and exhaust it outside but I just can't seem to find a way. By the end of day when I shut my sBitx down it's running at 71C, (the only thing running is sBitx), in a air conditioned room, that's on the upper edge of being too hot. It's like running around in a car that on the edge of overheating all the time, it takes the fun out of operating the radio. The Pi 4 should have been flipped over on it's back from the beginning so we could cool the cpu? properly.
?
Joel
N6ALT
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Thank you for this fan recommendation, did you use this fan? Is it quiet? Did you blow air on the Pi or draw air away from it?
?
Joel
N6ALT
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Gyula,
?
What did you make the fan plate out of? It looks like maybe PCB material? What length standoffs did you use to space the fan away from the back of the Raspberry Pi? Thanks for the info.
?
Joel
N6ALT
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|
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Joel,
the RPi is not cooled by the fan from the side of the IC part in this method, but by blowing air on the back side of the pcb. This is how you achieve cooling and you don't have to deal with cutting out the side panel in the case of sBitx v2, v3, because there is enough space to fit the 10 mm high fan together with the support plate and keeping it away from the RPi. I've had this installed since May 7th (I document everything) ;-) so now during the heat wave the CPU temperature starts at 35 degrees C and longer usage for 1-2 hours in digital mode doesn't even reach 60 degrees C. You will surely find more pictures in the forum search.
--
Gyula HA3HZ
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On Wed, Jun 26, 2024 at 05:54 PM, Bob Benedict, KD8CGH wrote:
Has anyone tried this yet? I am actively looking for a way to cool my sBitx V3 Raspberry pi 4 cpu, I've had the case opened up for days trying to fit a laptop squirrel cage fans and other fans to the vent by the power plug but there just isn't enough room to fit it. I really wanted to be able to seal a fan to one of the vents so I could pull/push cool air from outside the cabinet and exhaust it outside but I just can't seem to find a way. By the end of day when I shut my sBitx down it's running at 71C, (the only thing running is sBitx), in a air conditioned room, that's on the upper edge of being too hot. It's like running around in a car that on the edge of overheating all the time, it takes the fun out of operating the radio. The Pi 4 should have been flipped over on it's back from the beginning so we could cool the cpu? properly.
?
Joel
N6ALT
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On Sat, Jul 20, 2024 at 09:52 AM, Rafael Diniz wrote:
You can just use the Makefile and the ATTinyCore I mention to compile the "stock" firmware (just swap the .ino to Farhan's). I don't use the Arduino IDE, which I hate tbh.
: )
Rafael,
?
No argument there about the IDE. I normally use visual studio. But this sketch is so small, it doesn't really matter. Looks like your build environment is on Linux.? Mine is on Windows.?
?
73,
Dean
KK4DAS?
|
Hi Dean,
You can just use the Makefile and the ATTinyCore I mention to compile the "stock" firmware (just swap the .ino to Farhan's). I don't use the Arduino IDE, which I hate tbh.
: )
ATtiny has 512 bytes of non-volatile memory, so this is useful for our project, for example, to hold the radio serial number, so user can swap the SD card while retaining all specific board setup and calibration.
Btw, more info about HERMES here:
I also uploaded a couple of SD card images of our HERMES system for the sBitx:
Cheers,
Rafael
toggle quoted message
Show quoted text
On 7/20/24 01:43, Dean Souleles wrote: On Fri, Jul 19, 2024 at 05:26 PM, Rafael Diniz wrote:
I use this one:
Thanks Rafael - the SpenceKonde ATTinyCore doesn't currently load in the Arduino IDE.? When you follow the instructions to install it using the IDE you get certificate errors.? Following a bunch of posts on the Arduini support forum where there has been much discussion about this for moths, I did manage to load it manually earlier today an got a clean compile.? I wont be back in the shack until Sunday to test.? I also have found a couple of other cores that rely on TinyWireS? instead of wire - so I have plenty to test when I return.
What are you trying to accomplish wiht the additional functionality in the ATTYIn.? ?I see you have enabled getting and setting serial numbers and so forth, but I'm not sure why I would want to do that,? ?I don't understand what the ATTiny has do do with CAT control at all.? If you have documented it somewhere I'd be glad to look it over.? ?At the moment I will be happy to get the power readings working.? ?Your makefile for the ino is straightforward - it should be equivalent to what the IDE does.
I admit I had never heard of Rhizomatic or HERMES before today - and was intrigued at the background.? If I understand it you are using the sbitx as to core radios for these rural self-managed communications networks.? ?It sounds like a fascinating project.? It looks like a very worthwhile project.
73,
Dean
KK4DAS
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Re: Selling my 2-day old Sbitx V3
|
Yeah sorry to all. ?Im away from home and using my phone. ?Total operator mess up.
Dr.?William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton - J68HZ Soufriere, St. Lucia W.I. Rent it: www.VillaGrandPiton.com
email:??bill@... ?
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On Jul 19, 2024, at 8:58?PM, Dean Souleles <dsouleles@...> wrote:
? On Fri, Jul 19, 2024 at 09:01 PM, K9HZ wrote:
Sorry wrong forum! ? Please ignore!
Ah, makes sense now. Different radio, different discussion. :)
?
No worries and thanks for clarifying.
?
Thank you.
|
On Fri, Jul 19, 2024 at 09:01 PM, K9HZ wrote:
Sorry wrong forum! ? Please ignore!
Ah, makes sense now. Different radio, different discussion. :)
?
No worries and thanks for clarifying.
?
Thank you.
|
Sorry wrong forum! ? Please ignore!
Dr.?William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton - J68HZ Soufriere, St. Lucia W.I. Rent it: www.VillaGrandPiton.com
email:??bill@... ?
toggle quoted message
Show quoted text
On Jul 19, 2024, at 7:59?PM, K9HZ <bill@...> wrote:
? The ATTiny85 has NOTHING to do with anything except turning the radio on and off. ?I used ot instead of a few flipflops. ?Easier and cheaper. ?Nothing communicates with the ATTiny except two lines from the teensy. ?One digital input and one digital output. ? The code for the ATYiny is on my gitbub (has ¡°state machine¡± in the file name) and acts like a set of flipflops and a delay. ?Thats it. ?You cant talk to it. ?
Dr.?William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton - J68HZ Soufriere, St. Lucia W.I. Rent it: www.VillaGrandPiton.com
email:??bill@... ? On Jul 19, 2024, at 7:43?PM, Dean Souleles <dsouleles@...> wrote:
? On Fri, Jul 19, 2024 at 05:26 PM, Rafael Diniz wrote:
I use this one:
?
Thanks Rafael - the SpenceKonde ATTinyCore doesn't currently load in the Arduino IDE.? When you follow the instructions to install it using the IDE you get certificate errors.? Following? a bunch of posts on the Arduini support forum where there has been much discussion about this for moths, I did manage to load it manually earlier today an got a clean compile.? I wont be back in the shack until Sunday to test.? I also have found a couple of other cores that rely on TinyWireS? instead of wire - so I have plenty to test when I return.
?
What are you trying to accomplish wiht the additional functionality in the ATTYIn.? ?I see you have enabled getting and setting serial numbers and so forth, but I'm not sure why I would want to do that,? ?I don't understand what the ATTiny has do do with CAT control at all.? If you have documented it somewhere I'd be glad to look it over.? ?At the moment I will be happy to get the power readings working.? ?Your makefile for the ino is straightforward - it should be equivalent to what the IDE does.??
?
I admit I had never heard of Rhizomatic or HERMES before today - and was intrigued at the background.? If I understand it you are using the sbitx as to core radios for these rural self-managed communications networks.? ?It sounds like a fascinating project.? It looks like a very worthwhile project.
?
73,
Dean
KK4DAS
?
?
?
?
?
|
Now you will have to toggle the pin that addresses the fet high and low to turn the radio on and off if you do that. ?
Dr.?William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton - J68HZ Soufriere, St. Lucia W.I. Rent it: www.VillaGrandPiton.com
email:??bill@... ?
toggle quoted message
Show quoted text
On Jul 19, 2024, at 7:45?PM, Dean Souleles <dsouleles@...> wrote:
? On Fri, Jul 19, 2024 at 05:30 PM, K9HZ wrote:
You can eliminate the ATTiny form the whole thing by pulling it off the board.
Gee - why didn't think of that!? :)
?
Reminds of a joke:
?
I went to the doctor and said:
?
"Doc, it hurts when I go like this...'"
?
The doctor replied:
?
"Don't go like this."
?
?
|
The ATTiny85 has NOTHING to do with anything except turning the radio on and off. ?I used ot instead of a few flipflops. ?Easier and cheaper. ?Nothing communicates with the ATTiny except two lines from the teensy. ?One digital input and one digital output. ? The code for the ATYiny is on my gitbub (has ¡°state machine¡± in the file name) and acts like a set of flipflops and a delay. ?Thats it. ?You cant talk to it. ?
Dr.?William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton - J68HZ Soufriere, St. Lucia W.I. Rent it: www.VillaGrandPiton.com
email:??bill@... ?
toggle quoted message
Show quoted text
On Jul 19, 2024, at 7:43?PM, Dean Souleles <dsouleles@...> wrote:
? On Fri, Jul 19, 2024 at 05:26 PM, Rafael Diniz wrote:
I use this one:
?
Thanks Rafael - the SpenceKonde ATTinyCore doesn't currently load in the Arduino IDE.? When you follow the instructions to install it using the IDE you get certificate errors.? Following? a bunch of posts on the Arduini support forum where there has been much discussion about this for moths, I did manage to load it manually earlier today an got a clean compile.? I wont be back in the shack until Sunday to test.? I also have found a couple of other cores that rely on TinyWireS? instead of wire - so I have plenty to test when I return.
?
What are you trying to accomplish wiht the additional functionality in the ATTYIn.? ?I see you have enabled getting and setting serial numbers and so forth, but I'm not sure why I would want to do that,? ?I don't understand what the ATTiny has do do with CAT control at all.? If you have documented it somewhere I'd be glad to look it over.? ?At the moment I will be happy to get the power readings working.? ?Your makefile for the ino is straightforward - it should be equivalent to what the IDE does.??
?
I admit I had never heard of Rhizomatic or HERMES before today - and was intrigued at the background.? If I understand it you are using the sbitx as to core radios for these rural self-managed communications networks.? ?It sounds like a fascinating project.? It looks like a very worthwhile project.
?
73,
Dean
KK4DAS
?
?
?
?
?
|
On Fri, Jul 19, 2024 at 05:30 PM, K9HZ wrote:
You can eliminate the ATTiny form the whole thing by pulling it off the board.
Gee - why didn't think of that!? :)
?
Reminds of a joke:
?
I went to the doctor and said:
?
"Doc, it hurts when I go like this...'"
?
The doctor replied:
?
"Don't go like this."
?
?
|
On Fri, Jul 19, 2024 at 05:26 PM, Rafael Diniz wrote:
I use this one:
?
Thanks Rafael - the SpenceKonde ATTinyCore doesn't currently load in the Arduino IDE.? When you follow the instructions to install it using the IDE you get certificate errors.? Following? a bunch of posts on the Arduini support forum where there has been much discussion about this for moths, I did manage to load it manually earlier today an got a clean compile.? I wont be back in the shack until Sunday to test.? I also have found a couple of other cores that rely on TinyWireS? instead of wire - so I have plenty to test when I return.
?
What are you trying to accomplish wiht the additional functionality in the ATTYIn.? ?I see you have enabled getting and setting serial numbers and so forth, but I'm not sure why I would want to do that,? ?I don't understand what the ATTiny has do do with CAT control at all.? If you have documented it somewhere I'd be glad to look it over.? ?At the moment I will be happy to get the power readings working.? ?Your makefile for the ino is straightforward - it should be equivalent to what the IDE does.??
?
I admit I had never heard of Rhizomatic or HERMES before today - and was intrigued at the background.? If I understand it you are using the sbitx as to core radios for these rural self-managed communications networks.? ?It sounds like a fascinating project.? It looks like a very worthwhile project.
?
73,
Dean
KK4DAS
?
?
?
?
?
|
Selling my 2-day old Sbitx V3
Selling my 2-day old sButx V3. It works as it should. I decided it's not for me.? It came from India and of course fully checked out at the factory with the detailed check list. My loss someone else's gain $350.00 I hope) shipped lower 48. If it doesn't sell here, in a few days over to QTH.com. 73 all. Email on QRZ.com.
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You can eliminate the ATTiny form the whole thing by pulling it off the board. But i know ot has nothing to do with the display issue because ots not connected to the teensy yet. ? No routines in the teensy code for it to work yet. ??
Dr.?William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton - J68HZ Soufriere, St. Lucia W.I. Rent it: www.VillaGrandPiton.com
email:??bill@... ?
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Show quoted text
On Jul 19, 2024, at 3:05?PM, Dean Souleles <dsouleles@...> wrote:
? I am almost certain that the issue is down to one of two things - a problem with the ATTINY85 Board Manager that I chose or the version of the WIRE protocol that it uses.
?
As ususal, the Internet is full of non-authoritative conflicting observations on what should work, but probably doesn't.
?
There are multiple board managers for the ATTINY85, there are multiple WIRE libraries.? ?If anyone knows and has built the combination that actually works please let me know.
?
I've documented my step by step process on my blog:
?
?
73,
Dean
KK4DAS
|
I use this one:
I made a Makefile using arduino-mk (make for compiling, make ispload for loading the firmware) for use in my Atiny85 firmware for the sbitx:
- Rafael
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Show quoted text
On 7/19/24 21:05, Dean Souleles wrote: I am almost certain that the issue is down to one of two things - a problem with the ATTINY85 Board Manager that I chose or the version of the WIRE protocol that it uses.
As ususal, the Internet is full of non-authoritative conflicting observations on what should work, but probably doesn't.
There are multiple board managers for the ATTINY85, there are multiple WIRE libraries.? ?If anyone knows and has built the combination that actually works please let me know.
I've documented my step by step process on my blog:
KK4DAS - Amateur Radio Explorations: Homebrew sBitrx - RTC and Power Meter - ATTINY85 Tale of Woe <>
73,
Dean
KK4DAS
|
BITX24 Details Farhan designed/presented a BITX23, 6M SSB in his QSP issue of 2023 and I designed mine in 2024 hence I called it BITX24. ? This idea of my BITX24 was a result of studying 2 designs on the topic , viz Farhan and by Chrix found on YouTube. Both , built on the principals of BITX principal. ? During my earlier development on sBITX, I had already made some Break Out Boards (BoB) based on the uBITX TIA block which I plan to use in this project, hence you see some blocks in my schematic. I have had blocks for a Ladder Filter, Rx/Tx TIA, and a DRM (Diode Ring Mixer). These blocks are no specific design but adapted directly from the uBITX design. ? Signal Source (Si5351) design is external and connected to this board via SMA Connector. ? Using of Blocks has made this design more compact , in my opinion. ? This is just the Exciter Board and the front end BPF/LPF can be adapted from either of their designs. ? I planned to use MAX9814 MIC amp with AGC but then simply copied Farhan's MIC amp as a standby on the PCB. ? Choice of LADDER filter is yours and I would go with Chrix's idea. ? regards Charudatt VU2UPX
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Gwen Patton
Joel Caulkins/N6ALT
HA3HZ
WA3RSL
K9HZ
