2017 Dec 11, 10:45 AM
(2017 Dec 06, 12:36 PM)pratikkhandelwal Wrote:(2017 Dec 06, 01:12 AM)draggaj Wrote:(2017 Nov 27, 10:07 AM)pratikkhandelwal Wrote: Hey dan,
where can i get connections to the lcd display. what type of lcd display can be used?
No diagram as its only its 4 wires if you use one of these....
https://tronixlabs.com.au/display/lcd/se...australia/
coupled to one of these.....
https://tronixlabs.com.au/display/lcd/ch...interface/
or equivalent. adafruit have similar....in fact these may be same as adafruit sell....
in Australia, these are less than $10 for the pair...
anyhow, for my RPi B series, I connected the i2C backpack as follows
Backpack Pin-----------RPi Pin (physical Pin)
Grnd---------------------14 (Grnd)
Vcc-----------------------04 (+5v)
SDA----------------------03 (SDA1)
SCL-----------------------05 (SCL1)
NOTE - there is a bug with the LCD library at the moment preventing LCD from working on SIP. I got it to work, but a library is missing from github and I am working with Dan directly on that.
Also the i2c backpack above (and possibly the adafruit equivalent) uses address 03f by default (its changeable via solder bridge) and depending on RPi vintage smbus port 1 (later RPi) or 0 (earlier RPi). There are i2c tools available to correctly detect and report the address an i2c device is using.
I'll post a bit more once I have the wrinkles ironed out and Dan comes back to me...
Bob
Can you provide connection diagram of raspberry pi with lcd display in detail with circuit diagram and components?