Cytron Technical Forum

It has been a while since I last visited. But I have not abandoned the forum.

I have now improved the firmware for my serial LED displays. All XC8 now.
They are pretty easy to use.

There is a webpage containing pictures, and source codes as well.
It is even available for sale, starting at $3.98

http://pic.hitechworld.org/serial_led.html

Based on 16f54 controller.

Also I have now ordered a PCB for larger 2x 16f59 board. It can control 2x 3-digit LCDs.

Prototype PCB see attach. It is a big effort each time to wire up these displays, and to program the decoding.
When I have the PCBs in a few weeks, all I need is 3 wires.

Thanks for sharing the project. Some PIC16Fs have LCD drivers, so that you won't have to deal with the software multiplexing.

Plus, where did you purchase those LCD displays? I can't find it here, or they are extremely expensive at limited quantities from Element14.

Nice work!

superb! Thanks for sharing......

Brian Griffin WROTE:Thanks for sharing the project. Some PIC16Fs have LCD drivers, so that you won't have to deal with the software multiplexing.

Plus, where did you purchase those LCD displays? I can't find it here, or they are extremely expensive at limited quantities from Element14.

It was difficult in assembler, but in C, the work of an hour.

The PICs which have LCD drivers are more expensive. Also the display has 24 pins already.

The displays costs about $2 from Element 14.

Also the PIC16f59 board can be used for many types of displays, LED matrix.

It is just to save me from the work to wire it again and again, and to write the decoding tables as well.