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BITX40 code mods for TFT display


Jack Purdum
 

Hi Mike:

I haven't looked at this code for several years and I don't even know if it works, but it's better than starting from zero. A little explanation:? As you read the code, you will see messages in a C string array (array of pointers to char). Those are meant for sending pre-stored CW messages like you might use in a contest. They are tied to the 3 NO push-button switches you see on the top of the BITX40. You can also see message #1 displayed at the bottom of the TFT display. If you don't plan on using CW, deleting their references will free up some flash and SRAM space.

The code is Open Source, just leave the comments at the top of the file intact. I have no idea if the code works and just can't afford the time right now to answer questions about it...plus I've slept since I wrote it! Note: You must place both files in your working directory and the header file will have its own tab in the Arduino IDE.



Jack, W8TEE

On Sunday, April 28, 2019, 10:38:44 AM EDT, Mike Short <ai4ns.mike.spam@...> wrote:


Do you have details on implementing this on the bitx40? I am building one right now and would like to explore it.?

Mike
AI4NS?

On Sun, Apr 28, 2019 at 8:48 AM Jack Purdum via Groups.Io <jjpurdum=[email protected]> wrote:
I've used that display with the BITX40:

Inline image

and it works well. I've also made a VFO with the AD9850 that you mention (see March, 2016, QST). I can understand the addition of the display, but what's the purpose of the AD9850? If you're building from scratch, Farhan's design uses the multiple clocks from the Si5351, so that chip might be easier to "drop in" than the AD9850.

Jack, W8TEE

On Saturday, April 27, 2019, 11:59:50 PM EDT, N7QL <n7ql.us@...> wrote:


I am trying to figure out what arduino modules I need to build the raduino. I found this display?.? I also found this DDS module. I assume I'd also need the UNO R3 Mega 2560 module also. Would these work well together? What modules are normally used for the Bitx kits?