¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io

In need of some vfo help


 

greetings from the Aloha State.. my name is Peter and my call sign is WH6FAO since there has been a backlog on the connecting board I made my own from the schematic. While it does power up I am having a issue with the display I have posted a short video on youtube showing it??.?


 

I'm not sure where you got the LCD display, but it does look like some of the characters are being displayed correctly. If you bought the display from Yourduino.com, I would suggest loading a sample program from their web site and seeing if the display works properly. It appears that you are getting the '7' from the 7MHz and the 'e' in General. I'm not sure about the rest of the display.

I would also suggest you download the code again from Farrukh's site, as there were corrections made to the code but QST didn't change the download files. His site is:

www.farrukhzia.com/k2zia?

Jack, W8TEE


From: "wh6fao@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Tuesday, May 24, 2016 12:59 AM
Subject: [SoftwareControlledHamRadio] In need of some vfo help

?
greetings from the Aloha State.. my name is Peter and my call sign is WH6FAO since there has been a backlog on the connecting board I made my own from the schematic. While it does power up I am having a issue with the display I have posted a short video on youtube showing it??.?



AaronHev
 

¿ªÔÆÌåÓý

I had this exact problem with my display when I booted the Nano for the first time only for the purpose of checking the code with the I2C display. The 49-er hadn't been built yet. If I remember correctly, the error was being caused by some bugs in the old I2C library file. You need to download the updated library (and the code), as Jack said, from Farrukh's site. This should solve all the display problems you are having.

Aaron - N2HTL

On May 24, 2016, at 8:37 AM, Jack Purdum jjpurdum@... [SoftwareControlledHamRadio] <SoftwareControlledHamRadio@...> wrote:

?

I'm not sure where you got the LCD display, but it does look like some of the characters are being displayed correctly. If you bought the display from , I would suggest loading a sample program from their web site and seeing if the display works properly. It appears that you are getting the '7' from the 7MHz and the 'e' in General. I'm not sure about the rest of the display.

I would also suggest you download the code again from Farrukh's site, as there were corrections made to the code but QST didn't change the download files. His site is:

?

Jack, W8TEE


From: "wh6fao@... [SoftwareControlledHamRadio]" <SoftwareControlledHamRadio@...>
To: SoftwareControlledHamRadio@...
Sent: Tuesday, May 24, 2016 12:59 AM
Subject: [SoftwareControlledHamRadio] In need of some vfo help

?
greetings from the Aloha State.. my name is Peter and my call sign is WH6FAO since there has been a backlog on the connecting board I made my own from the schematic. While it does power up I am having a issue with the display I have posted a short video on youtube showing it??.?



 

here's a link to the display i bought on eBay.?




 

The listing is no longer viewable. If you can, write the vendor and ask which libraries the display uses.

Jack, W8TEE



From: "wh6fao@... [SoftwareControlledHamRadio]"
To: SoftwareControlledHamRadio@...
Sent: Tuesday, May 24, 2016 9:15 PM
Subject: Re: [SoftwareControlledHamRadio] In need of some vfo help

?
here's a link to the display i bought on eBay.?






Aaron Heverin
 

Peter,
Besides making sure you are using the correct I2C library for the DDS/49-er radio, you need to make sure that you are calling the display in the code but its proper address. If you head over to this site:? - there's a TON of information about several I2C displays including how to install the latest I2C library. About 3/4 of the way down the page, there's a sketch for an "I2C Address Scanner." If you copy and paste this code into a new Arduino sketch, then run it according to the instructions, you'll find the address for YOUR display. I think the standard address for the 16 x 2 display is "0x27" but I wouldn't quote me on that. Not having the correct I2C address will cause all kinds of issues IF the display puts out any data at all - which is most often the case... nothing showing up. The best you might do is the backlight coming on. However, since you're getting small bits of data being displayed, I'm going with the incorrect I2C library being installed as being your problem. However, it never hurts to check for the correct I2C display just to rule that out as a potential issue.

Aaron - N2HTL

On Tue, May 24, 2016 at 10:19 PM, Jack Purdum jjpurdum@... [SoftwareControlledHamRadio] <SoftwareControlledHamRadio@...> wrote:

?

The listing is no longer viewable. If you can, write the vendor and ask which libraries the display uses.

Jack, W8TEE



From: "wh6fao@... [SoftwareControlledHamRadio]" <SoftwareControlledHamRadio@...>
To: SoftwareControlledHamRadio@...
Sent: Tuesday, May 24, 2016 9:15 PM
Subject: Re: [SoftwareControlledHamRadio] In need of some vfo help

?
here's a link to the display i bought on eBay.?








--
Aaron


 

Thanks for the help on the display , that part is working now.. now to rack my brain on other problems.