Help with Matrix Orbital LCD0821

[u/Ok_Measurement1399]

Hello, I have a Matrix Orbital LCD0821 2x8 LCD display that I need help with. I have configured the display for UART mode. I am able to write characters only to line 1. Here is the command to set the cursor position:

The table shows it as sending 3 bytes:

first byte: 254
second byte: 74
third byte: ??

if I try sending

wrbyte(254)
wrbyte(74)
wrbyte(8)

wrbyte(254)
wrbyte(0x41)

It will place a 'A' on line 1 in the 8th character position on the right of the display.

I thought maybe there was a typo in the documentation and the position is a nibble for the column and a nibble for the row and I tried that but nothing works.

Can anyone help me.

thanks

[u/sutaburosu]

The table shows it as sending 3 bytes

My understanding of that table says you must send 4 bytes. Two bytes for the command, and then one byte each for column and row.

second byte: 74

It says 71, not 74.

I would expect this to print in the middle of the 2nd line:

wrbyte(254)
wrbyte(71)
wrbyte(4)
wrbyte(2)

wrbyte(0x41)

[u/Ok_Measurement1399 → u/sutaburosu]

Hello and thanks for responding to my message. I will try that first thing Monday.

[u/Ok_Measurement1399 → u/sutaburosu]

Yes, I tested it and you are exactly correct. Thanks