I2c 2004 LCD not working
Russell 2013-06-16 11:58:03 2162 Views2 Replies I am having an issue getting the I2C 2004 LCD to work. I am getting two rows of square blocks.
I have tried it on two UNO's,
A different brand I2C LCD and it works on the UNO.
Tried the contrast And 10k pull-up resistors.
I would be grateful for any suggestions.
I have tried it on two UNO's,
A different brand I2C LCD and it works on the UNO.
Tried the contrast And 10k pull-up resistors.
I would be grateful for any suggestions.
2013-06-17 18:34:46 Hi
The default address should be 0x20 with three jumper caps on.You refer to this LCD wiki doc.
[url=https://www.dfrobot.com/wiki/index.php/I2C/TWI_LCD1602_Module_(Gadgeteer_Compatible)_(SKU:_DFR0063)]https://www.dfrobot.com/wiki/index.php/I2C/TWI_LCD1602_Module_(Gadgeteer_Compatible)_(SKU:_DFR0063)[/url]
Hope it is useful for you:)
Best Phoebe
The default address should be 0x20 with three jumper caps on.You refer to this LCD wiki doc.
[url=https://www.dfrobot.com/wiki/index.php/I2C/TWI_LCD1602_Module_(Gadgeteer_Compatible)_(SKU:_DFR0063)]https://www.dfrobot.com/wiki/index.php/I2C/TWI_LCD1602_Module_(Gadgeteer_Compatible)_(SKU:_DFR0063)[/url]
Hope it is useful for you:)
Best
Phoebe 2013-06-17 07:04:33 Got it working. The solution was, for some reason it did not like the default address of 0x27. I removed the jumpers and set it for 0x20, along with the code. Russell
Russell 