Sunday, 22 January 2012

LCD Backlight, contrast and Power done

Was going to run the LED on 12V and determine the correct resistors to get the correct current
(in this device it is 80ma ) as my 7805 was only rated at 100ma

In the end I replaced the 7805 for a 1A version. The LCD already has the correct resistor fitted on board to connect to 5V. Found a 22Turn Trimmer for the contrast and that worked fine too.

Onwards and upwards...need to program the PIC soon if I can beg/borrow/make/buy  a programmer

No comments:

Post a Comment