hello,
Ive attached a 12 key matrix style keypad to the keypad interface connector. Unfortunately, two of the keys do not work. This is the result of the LCD board not recognizing a short between pins 1&4 and also between pins 1&7. To ensure that this was not due to a faulty keypad i used jumpers ...
Search found 2 matches
- Sat Mar 28, 2009 12:15 pm
- Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
- Topic: Problems using keypad with LK162-12
- Replies: 1
- Views: 3141
- Wed Mar 25, 2009 5:44 pm
- Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
- Topic: I2C communication problems
- Replies: 2
- Views: 4179
I2C communication problems
Hello,
Im new to the world of LCD's and I2C for that matter. Im attempting to communicate with an LCD model LK162-12 with a Freescale microcontroller via I2C and have had zero success. I moved the jumpers from 232 to I2C, set up the I2C comm. on my chip, set the baud rate to 93.75 kbps, and sent ...
Im new to the world of LCD's and I2C for that matter. Im attempting to communicate with an LCD model LK162-12 with a Freescale microcontroller via I2C and have had zero success. I moved the jumpers from 232 to I2C, set up the I2C comm. on my chip, set the baud rate to 93.75 kbps, and sent ...