Comments (2)
I tested it with pcf8574AT - it failed to show characters - only gibberish on lcd
from liquidcrystal_pcf8574.
Please let me know what adapter board you are using.
Please see the article at http://mathertel.de/Arduino/LiquidCrystal_PCF8574.aspx.
The wiring may differ when using other chips or boards.
The common board i use is using the 8 bits the following way:
Bit | Signal |
---|---|
1 | PCF_RS |
2 | PCF_RW |
3 | PCF_EN |
4 | PCF_BACKLIGHT |
5..8 | 4 bits of data |
from liquidcrystal_pcf8574.
Related Issues (16)
- Hi.
- optimising _sendNibble to write faster (about 3 time less I2C send for the same job) HOT 2
- Sample Code For custom characters HOT 2
- no matching function for call to 'LiquidCrystal_PCF8574::createChar(int, byte [8])' HOT 2
- LiquidCrystal_PCF8574::print() doesn't handle '\n' character HOT 4
- LCD show ramdom caracteres after a while HOT 4
- Change the bit allocations? HOT 3
- LCD Write Odd Wrapping HOT 1
- Effects not working with text longer that 16 char HOT 2
- No default constructor for common PCF8574 LCD address 0x27 HOT 1
- Licensing terms HOT 1
- Backlight brightness does not work as expected HOT 1
- LCD 16x4 behaves strange.
- Individual files can't be changed from LGPL to dual license with BSD HOT 12
- Non asci characters HOT 1
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