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DAT <~> SDL CLK <~> SCL hope that helps! Beau

Steve you can use 2 ports for display data transfer and using soft UART library.

Sounds great!? There is a gotcha, tho.? If I read the PIC data sheet correctly, the serial i/o goes through two pins that, on the ATU-100, are dedicated to two of the relay drivers.? If that's

I'll have to look at that.? I was thinking of doing the exact thing.? I want to have the ATU-100 send its current info (forward, reverse, power, etc.) out over a serial line to a raspberry Pi.?

Thanks, that's pretty much what I want to achieve. Wish it was being done on a Pi.....know nothing about Arduinos. Charlie

Florian Thienel has a way to do that.? See https://github.com/ftl/atu100wifi.? He has code for an Arduino Nano that pretends to be the display and sends the info over a serial line.? He then uses

Hi, Charlie. No, no those futures you need. But you can add them in firmware pretty easy.

Would it be possible to monitor the SWR and/or power metering via a serial port , or to control the tuner by a serial port ?? I run my radios all remotely, and with serial control, I could do that on

Well, I started removing the 0.1 uf SMD capacitors on the 12 volt bus.? The next-to-last one did the trick! Steve

Hello! Happy New Year! Here ( https://disk.yandex.ru/d/06xLMizkSnbDBg ) is my attempt to add the TQFP-44 sitting option around the original UQFN-40 pads. Also - I cleared as much ground near the

Thanks Fred. 73

Hi Norm, I see that Newark has them in stock: https://www.newark.com/multicomp/hrs1h-s-dc12v/signal-relay-hrs1-series-spdt/dp/97K1570 73 Fred, N6SMN

Norm, My ATU-100 was bought as a kit.? The relays supplied are on eBay. The number on them is *"HRS1H-S-DC12V"* which gives plenty of hits. vk3pe

Howdy I think I am missing something..i have a Chinese unit and the 4 line oled.? I know about vcc and ground.? What are the two other lines and where do they go ? And how do you program it or set

Finally putting together another ATU-100 kit I got a while ago only to end up one relay short. Looked up the part number on both DigiKey and Mouser with no joy. Anyone have a part number for me?

*Steve I think the manual tweak buttons are only valid in the test mode software.? Connections are via the existing interface jack to the IC-705. As far as I know, the only assembled boards are of

I am interested in the ATU-10, especially since David has added connections for manual tweak buttons.? But I would want an assembled board (not being up to SMD soldering) and am concerned about the

I have an ATU-100 board that I bought pre-assembled,? Worked fine, then suddenly in mid-operation the power supply fuse blew.? I now find that the 12 volt power line is shorted to ground.? I

Hi Dave Perhaps it would be a good idea to let the tuner work in auto mode to start with and make a note of the L and C values determined by the ATU. Then switch to manual mode and use these values as

With the unit in simple "Test Mode", I am experimenting with manual operation - so, basically to perform the tuning the same as the Autotune function, but doing it manually. However, I'm not sure