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tks! just the info i needed... looks like i am getting a new little QRP tuner!

The 0.96 inch OLED display with SSD1306 controller?is usually accessed at i2c address 3C.? Some are at address 78. Some modules have address select pads on the back.?Refer to the SSD1306 datasheet:

The charge current (Max.) on the TP4056 is set by external resistor, 2k6 (2600ohms) in Davids ATU-10.?? The data sheet gives a formula to calculate the charge current, from memory that's about

the average shitty USB charger will do 500ma as is so unless its been limited ya would say 2-3 hours

first, tks to David for this great tuner and gift to the ham community! my simple question: "How long does it usually take to charge batteries in the ATU-10?" obviously, that would depend on the

I believe you guys are homing in on a really great ATU. Going away from the BAT41 diodes to AD8361s or AD8307s is a good step to eliminate diode non-linearity problems, especially at the low end.

Am I correct that the adress of the OLED display is 78 and not 42? Is the adress the same for every OLED display? The display of my (2nd) kit doesn‘t display anything. vy 73 de Rolf, DL8BAG

Hi This tuner works in fully automatic mode, you don't have to use the control line if the tuner place is far. The best way - assembly this tuner as DIY.

I want to have it so ove got some distance between the radio and the atu due to location of a setup and style of setup Also David is there any ppace where I can buy a original atu-100 from as I've had

Hi, Trent I don't see any reason to do the length more then 30 cm.

Thanx David,how long can the cable be though betweeb the radio and atu

Hi all The same as AH-705 Lot of video on youtube

Hi, I just received my ATU-10 too and if someone has a user manual, or any info on how to interface it with the IC-705 I would appreciate it! 73 de Demetre M0SUY/SV1UY

How is the ATU-10 supposed to connect to the 705? What are the pin connections/what do they do? What length cable can be between the atu-10 and the 705? All of it should of being answered but I cant

Has there been any further progress ATU-10? on moving to Arduino IDE. ? I wonder how hard would it be for those looking at this, to add an option for an 8x8 tune set, rather than current 7x7?? (I'm

See https://www.instructables.com/Programming-Microcontrollers-With-a-USBasp-Program/ The USBASP was made for Atmel AVR micros. Not all Microchip PIC micros can be programmed, especially the fuse

I have a USBASP? V2.0 used to program chips in my QRP Labs rigs, can this be used to update firmware in my ATU-100's?? If so anyone know how to connect pins? Thank you? 73? Emory? WM3M

Never mind, had very small solder bridge between the two pins, even under my strongest mag could not really see it.? But got it off with very small blade, works fine now.

Appreciate the help.? I have not tried changing or doing anything with the firmware but will do some research and see if I can do it. Thank you? 73? Emory? WM3M

New build of ATU-100, works fine but Auto switch does not work, both bypass and auto show _ underline on the display and both turn it off but can't get into auto?? Any suggestions or help would be