PiHPSDR Controller
Robert Dale
Heath Petty
Marc OLANIE
Hi Robert
The PiHPSDR console need only 2 component. A MCP23017 and a LMZ22005TZ
Both are impossible to buy right now, and probably won’t be available until mid 2023 (or end of next year for the switching regulator).
The LMZ22005TZ could be replaced with a LM1084 if you add a home made pcb patch to deliver the 5V rail. The SOIC version of the 23017 is absolutely unobtainable, but you always can find tssop version of this IC on the chinese market…. if you feel comfortable enough with surgical sodering.
In other words, the PiHPSDR or the Andromeda hardware interface are probably not the best hacking project for the moment imho
73’
Marc f6itu
De : herme...@googlegroups.com <herme...@googlegroups.com>
De la part de Robert Dale
Envoyé : lundi 5 septembre 2022 19:40
À : Hermes-Lite <herme...@googlegroups.com>
Objet : PiHPSDR Controller
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Richard Faust
Sent: Monday, September 5, 2022 10:40 AM
To: Hermes-Lite <herme...@googlegroups.com>
Subject: PiHPSDR Controller
Mike Lewis
One source of the MCD23017 can be the small PCBs assemblies using this chip found on the usual online places. You can desolder the chip. These assemblies seemed plentiful las I looked a few months ago.
Several months ago I built one of these PCBs and put it into a Hammond box milled by Front Panel Express, front and back. The biggest choices for me was dual or single encoders, suitable knobs, and the main encoder choice. The PCB accommodates several sizes. Pay attention to the shaft length on the main encoder in particular for your choice of encoder and how it is mounted . Mine mounted on the PCB (can choose front or rear mount types) and I had to shop very hard for a tuning knob that had the shaft screw low enough to the panel surface to engage with the short-ish shaft mine had. You could also mount the encoder on the front panel but then assembly is more complicated. The aluminum dual concentric knobs I found from Newark happen to be on sale 40% off so they were affordable but the small top knob set screw just barely engaged the shaft, one regularly falls off due to slightest warpage of the board in the center reducing my exposed shaft length. I think that could be solved by finding or making slightly shorter PCB spacers. Adding a center spacer would solve it also but I did not want to drill the case more.
For my black anodized milled case I used a black marker to “paint” the silver machined surfaces including under the countersunk panel screws before putting screws in. I have my Hammond case drawings posted in this forum.
I used the Aug 2020 version spreadsheet of parts (the BOM) from the K9IVB website. Several parts were not available but I was able to determine suitable replacements. I had a good selection of SMT resistors, capacitors and inductors but even so, I ordered many anyway due to the amount needed.
I recall initially installing jumpers in the 12V converter/switch section and just using external 5V power until needed parts arrived. The FET switch can be jumpered. I don’t think much needs 12v and there are alternate ways to turn the power on and off. I eventually got the part and I have several parts like USB hub, USB3 SSD, Teensy4 CW keyer, 12V audio amp that use extra power (5V and 12V).
I used taller spacers for the RPI4B so used a taller 2x20 pin header. This was to accommodate a low profile one piece heat sink with integral variable speed fan. The PI PCB mounts bottom side up, the heat sink is therefore sandwiched between the PiHPSDR PCB and the PI PCB.
The pics of the 2 PiHPSDR controllers show the PCB version (V2 MkII controller config) and SmartiCase version using the V1 controller config. The other pic shows the V2 mkII version in the Hammond box with a PCB mezzanine board added to mount accessories: audio amp, USB3 SSD, USB hub, Teensy 4.0 keyer. The keyer replaced my early mini USB audio dongle and handles speaker and radio microphone (standard dynamic hand mic), PTT debounce, and CW keyer input. It acts as a sound card and outputs though the 12V 3W audio amp.
- Mike
To view this discussion on the web visit https://groups.google.com/d/msgid/hermes-lite/DM6PR01MB4636F4829FD7CBE4D2C00C5DE37F9%40DM6PR01MB4636.prod.exchangelabs.com.
Uwe Holz
Sid Boyce
The switches I got cheap quantity of 200 and donated many to other
builders along with some PCB's from JLCPCB.
https://thepihut.com/products/official-raspberry-pi-7-touchscreen-display
73 ... Sid.
On 30/01/2024 12:52, Uwe Holz wrote:
> Hi,
>
> I know there has not been much activity in this thread lately, but I
> would like to build a PiHPSDR Controller as well.
> Unfortunately K9IVB website seems to be down. But I was able to find
> some other source for placing a JLCPCB order.
>
> different options of displays and I am unable to find the one foreseen
> the right one?*
>
> *From:* herme...@googlegroups.com <herme...@googlegroups.com> *On
> Behalf Of *Marc OLANIE
> *Sent:* Monday, September 5, 2022 12:00
> *To:* Robert Dale <rober...@gmail.com>; Hermes-Lite
> <herme...@googlegroups.com>
> *Subject:* RE: PiHPSDR Controller
> Hi Robert
>
> The PiHPSDR console need only 2 component. A MCP23017 and a LMZ22005TZ
>
> Both are impossible to buy right now, and probably won’t be
> available until mid 2023 (or end of next year for the switching
> regulator).
>
> The LMZ22005TZ could be replaced with a LM1084 if you add a home
> made pcb patch to deliver the 5V rail. The SOIC version of the
> 23017 is absolutely unobtainable, but you always can find tssop
> version of this IC on the chinese market…. if you feel comfortable
> enough with surgical sodering.
>
> In other words, the PiHPSDR or the Andromeda hardware interface
> are probably not the best hacking project for the moment imho
>
> 73’
>
> Marc f6itu
>
> part de* Robert Dale
> *Envoyé :* lundi 5 septembre 2022 19:40
> *À :* Hermes-Lite <herme...@googlegroups.com>
> *Objet :* PiHPSDR Controller
> Does anyone have or know where I can get the latest pihpsdr
> controller files (gerbers, BOM etc). I'm thinking about having
> JLCPCB make up a few boards...
>
> Any advance info/issues with parts procurement I should be aware of?
>
> 73,
>
> Robert VE7ZN
>
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--
Sid Boyce ... Hamradio License G3VBV, Keen licensed Private Pilot
Retired IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support Specialist
Microsoft Windows Free Zone - Linux used for all Computing Tasks
Robert Nickels
> I know there has not been much activity in this thread lately, but I
> would like to build a PiHPSDR Controller as well.
> Unfortunately K9IVB website seems to be down.
committed to do last weekend at the W9DYV Technical Symposium at the
Winterfest hamfest in St. Louis. I'm pretty pleased with how it came
out - here's a pic:
https://postimg.cc/JHxmG8Zd
The enclosure is made of an aluminum composite material with
laser-etched lettering. My 20 watt diode laser isn't capable of cutting
metal so I used it to mark the centerlines for drilling and used round
buttons as suggested by K9IVB. I can provide the Lightburn file to
anyone wanting to do that, but in retrospect I think I'd order a PCB
with black silkscreen just to avoid the manual drilling and sawing as
even a slight drilling error will result in sticky buttons. The
concentric knobs are 3D printed and the large one came from my junkbox -
the published stl files fit perfectly.
I used a cheap buck converter since the original regulator is obsolete,
but kept all the filtering and power switch circuitry as-is. This is
actually a plus since they have a trimpot that makes it easy to adjust
the 5 volts to the Pi's liking and it seems to be very robust as well.
Local audio comes via a $1 class D audio amplifier running from 5 volts
which produces plenty of audio with a nice 3" speaker.
I'm planning to post a more detailed article about it soon.
73 Bob W9RAN
Uwe Holz
john hutchison
Poisson
john hutchison
I found modern gerbers that kicad likes, will look for the github for it when home. They show up in jlc, pcbway, and oshpark with all the proper holes and dimensions.
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john hutchison
Richard Faust
Sent: Tuesday, October 29, 2024 9:45 AM
To: Hermes-Lite <herme...@googlegroups.com>
Subject: Re: PiHPSDR Controller
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