For iOS users looking for a portable FT8 solution, you might want to give this a try. It can call CQ on its own and automatically run the sequence when someone replies—set it and forget it.
It adds about 3 oz to your pack(reduces $30 from your pocket) and frees up your iPhone for more important tasks. More details:
73, Wei AG6AQ
You let (your) cat out of the bag!
I’d never heard of a Cardputer before but I ordered one last week and successfully (I think) burned your firmware at the weekend. I’m yet to try an activation but the Cardputer ADV and QMX seem to be working.
Hope to give it a try soon.
Thanks, 73
Colin
I too had never heard of Cardputer before, but have just ordered one to try this out!
I thought it was a ZX Spectrum at first sight.
Hi all 
An other one without TRX
I think 0.4w or 3w out, all in one (working & logging SOTA / POTA etc.)
Enjoy your ZX81 
73, Éric F5JKK
Thanks for trying it, and thanks for your attention. I googled the ZX Spectrum and learned a bit of its glorious history — good stuff.
I’ve brought DX-FT8 on a few SOTA trips (including Mt. Whitney), and it worked well. I only ran into two issues:
It’s a little bulky (I admit I’m being picky). Not a big deal for a day trip, but on multi-day trips it makes me think twice.
It puts out about 0.5–0.7 W, which is sufficient and fun to play with — but when time is limited, 2–3 W makes it a lot easier to get the job done.
Mini-FT8 is entirely inspired by DX-FT8 (and I made a small contribution to improve its UI). I haven’t brought it to a summit yet, but in a few POTA field runs it worked seamlessly with the QMX, and I was able to log about 10 QSOs in roughly 45 minutes. Mini-FT8 is optimized specifically for QRP portable operation. Also, the device is commercially available and very affordable.
I hope it helps make FT8 more popular among SOTA activators.
73, Wei AG6AQ
Another point: since Mini-FT8 supports free text natively, it could also be used to beacon your location in a distressed situation—useful if a SOTA operator doesn’t have (or forgot) an InReach. It’s not a substitute for dedicated emergency gear, but it can add a little extra safety margin, just in case.
The light-weight benefits of the Cardputer would likely be offset by the binocular microscopic I’d need to carry to be able to use it 
There are lightweight magnifier options, too.
I’m totally aware of its limitations. If you set everything up at home first, then in the field you only need to do three things:
set the time
connect to the QMX
enable the beacon.
And you can do all of that from the keyboard without really needing to look at the screen.
Hi Wei @AG6AQ
Can you make an AZERTY keyboard, it will be interesting for some EU countries, including France 
I am currently spreading the word in my region.
73, Éric F5JKK
Hi Éric,
The project is open source, and the UI interface was entirely generated by ChatGPT (Codex) based on my instructions, so keyboard re-mapping should be straightforward. If you can compile the code and provide the re-mapping table to ChatGPT, it can update the code for you. I probably won’t do it myself, but I’m happy to answer questions.
73, Wei AG6AQ
Merci Wei
The reason I asked the question is that I know nothing about programming. 
Please join https://groups.io/g/qrp-portable for announcements, updates and discussion if you’re interested.
I will let this thread sink.
73, Wei AG6AQ
Just flashed 2.0 to my Cardputer ADV. Such a great little piece of software and thank you for adding KH1 support!
One thing I noticed though is it doesn’t like the GNSS/LORA hat. I was hoping to use this for the GPS requirement. Once you plug it in to the Cardputer Adv, it makes the screen glitch and Mini-FT8 becomes unusable. Same if you plug it in while the Cardputer is powered off.
Just thought to report it in case there is a bug there or if the hat is just incompatible? Thanks for the great work and for sharing it with the community.
N.B.: I’ve reported it as an issue on your Github too. Just in case.
Built the KH1 Serial cable. Thanks to the Github diagram provided.
Hopefully it works! For the 5v I guess I’ll plug in to a power bank.
I have the RX cable ready to go too. Just need to buy the GPS add on from M5 and I will be good to go hopefully.
Got the GPS module, but my KH1 is away at the minute. Once it’s back I’ll finish this off and give it a test drive. Just to confirm, the GPS/GNSS/LoRa Hat that most folks may have doesn’t work with the software. I was able to confirm this once that recommended GPS module arrived. Using the HAT throws it in to a tizz. Remove the HAT, add the module. Disco.
Also, if anyone is keen, the new Cardputer Zero launches today at 9am EDT (2pm BST/IST).
Kickstarter is here:
https://www.kickstarter.com/projects/m5stack/cardputerzero
Someone posted a comparison image as well for the Cardputer ADV and Zero. I think it is basically a Cardputer ADV but with a Pi CM4 under the hood (not a CM5?).
I booked mine a few months ago. I intend to use it mostly as a mini Linux platform, but I may also try LoRa or FT8.
Same! 
Well, at least I hope M5 Stack keep their promise with the reservation spots. I’m going to stick with the ADV for the KH1 and QMX for now, but would like to look in to using the Zero to work with some additional modules I purchased recently.
Mostly CW-related ideas but some other stuff too I’d like to try out, perhaps a mini Linux device. Possibly some emulated (greatest computer of all-time in my opinion) Commodore 64 amateur radio ideas!
I reckon @M1BUU is already dreaming up some fun stuff for the Cardputer!
EDIT: It went live there at 2pm BST/IST. Looks like they are at €200,000 raised in 9 minutes (€230k in 13 mins and rising). Mind blowing. I went for the full fat Zero and both caps as the LoRa and GNSS / NFC caps appear to not be all in one caps this time round.
