As you can see I have programmed a PIC16F84 to display my Ebay username, each display is tested here in the UK before shipping.
the circuit diagram is available on request.
The source code for the PIC software is yours free of charge. Just request it at the check out by sending me a message
The Photographs don’t do the display justice, but I've been unable to get a good picture.
Pin out details are in legend on the rear of the PCB so no need to save the paperwork!
Built in character set for easy interface. There are programmable characters for those who can’t find the one’s they need.
This display uses the industry standard 14 pin signals + 2 pins for the backlight, the controller chip is HD44780 compatible
|
Pin No. |
SYMBOL |
DESCRIPTION |
|
1 |
VSS |
0V(GND) |
|
2 |
VDD |
+5vdc (VCC) |
|
3 |
VO |
Vo - Contrast adjust (this pin must be connected in order to see an image) |
|
4 |
RS |
Data/Instruction register select |
|
5 |
R/W |
Read/Write select |
|
6 |
E |
Read-Write enable strobe |
|
7 |
DB0 |
Data bus 8 bit mode / 4 bit mode only needs DB4-7 |
|
8 |
DB1 |
|
9 |
DB2 |
|
10 |
DB3 |
|
11 |
DB4 |
|
12 |
DB5 |
|
13 |
DB6 |
|
14 |
DB7 |
|
15 |
A |
Anode of LED Backlight (+5Vdc) Via 10r resistor preferable. |
|
16 |
K |
Cathode of LED Backlight (0V) |
Should you need 10r resistors or Contrast Pots please ask.
A 20*4 version is also available ask-seller for information.
Large quantities can be provided please ask for details.
If you require any further information then please ask.
Should you require the Data sheet/Source code on CD then there is an additional charge of £1.00
Cheques must be cleared before shipping.
UK & EU Members only
This item will include VAT at the prevailing rate
A VAT receipt will only be issued if requested at the check out.
Please check out my other items and my 100% feedback
Cheques must be cleared before goods are released.
Any questions please ask.
UK Customer please note
if your total order is over £10.00 then you must select Recorded Delivery.
if its over £34 then you must select Royal Mail Special Delivery
If you do not your items will not be shipped until either the extra is paid or
you send an email stating you take responsibility for your items if it gets lost
I will provide a scanned image of the Certificate of posting.
By clicking the "BUY IT NOW" button you agree to these terms & conditions
If you’re unsure then please request total
International Customers Please NOTE
If your total order value is over £10.00 then you must select International Signedfor as the shipping method.
if its over £34 then you must select Airsure.
If you do not your items will not be shipped until either the extra is paid or
you send an email stating you take responsibility for your items if it gets lost
I will provide a scanned image of the Certificate of posting.
By clicking the "BUY IT NOW" button you agree to these terms & conditions
If you’re unsure then please request total.
We are a green company and as such we try to reduce the paper waste.
We don’t use excessive packaging material and won’t send small items in very large boxes
So don’t be surprised if you don’t get any paper work with your order.
We've had no complaints about no paper work being issued
If you like, we can email invoices and data sheets as requested (please email).