This 
Have a bunch of RP2040 and RP2350 boards, as well as the excellent free C tools, micro Python works well for simpler tasks and you can knock up an embedded Python app in a very short time.
Plus living in Cambridge I can visit the Raspberry Pi shop and buy any of the boards over the counter 
(there has to be some compensation for no hills…), and everyone round here knows someone who works at Raspberry Pi, they are a great bunch of folk.
ATU-10 arrived to today. I bought it from Amazon rather than AliExpress so I could moan at Amazon if it was rubbish. As it is it would appear to be very well made, no glue or crufty assembly. Came with an Allen key for the case and a USB-C charge lead. All seems to work from some simple tests but I’ll try it tomorrow. Best of all I had a large Amazon voucher I’d been given as a thank you and so this had no obvious cost to my wallet.
Reports to follow.
It will work, its a nice tuner for portable antennas. Sometimes it even works in 50 MHz. Depending the antenna you are using.
73 Jorge.
It worked perfectly today with my 705.
Ich habe meinen seit ca 12 Monaten in Betrieb bei ca 30 Sota Aktivierungen. Bis dato kann ich sagen dass der Tuner sehr sehr gut funktioniert. Ich hatte noch kein einziges Problem damit. Note 1
73 Armin DF1AI
There are many companies building ATU-100 and ATU-10 tuners as the software and hardware design is open source. Some are better than others. As I wrote I bought a very cheap ATU-100 and had to spend some time fixing the horrible way it was put together.
I tried my new ATU-10 with my 705 on Burnhope Seat G/NP-003 connected to my 20/30/40m trapped EFHW using a 1:64 match. The ATU-10 tuned up effortlessly on 15m, 17m, 20m and 40m in a very short time, probably a second or two and if the display is believable, the SWR was always less than 1.2:1 which is fine. You can integrate it with the 705 so the radio controls it as you operate but I just pressed and held the tune button till it said “TUNE” on the front panel and sent a carrier and brrrrrrrrrrrp, it would tune. So I’m very happy with the performance and build quality of mine. The only downside is the display is not too bright in sunlight, I needed to shade it with my hand. That may be a good reason to use the 705 integration.
There were a range of vendors selling on Amazon.co.uk with varying prices. The following should identify the company I bought mine from. However, there’s no guarantee every item they sell is as well made!
I don’t know if the tuning range is as good as an Elecraft T1 but a new T1 is about £256 plus VAT which is £308 plus shipping. My ATU-10 was £92 including shipping. It came from China and arrived when stated on the purchase. As I said, you can get them for less but I didn’t want another item filled with glue and the wrong components!
Based on my statistically valid sample of one unit bought and one activation made, I’d buy another from the same vendor 