DaveCummings
Posts: 36
Joined: Tue May 29, 2012 8:26 pm
Location: Liverpool UK
Contact: Website

Getting a small screen to work on my pi

Fri Jul 11, 2014 8:00 am

I have bought one of these:

http://www.ebay.co.uk/itm/84x48-1-6-LCD ... _492wt_904

now I cannot get it to run I have soldered it as required and all the connections buzz out fine with a tester but it doesnt appear to be turning on. I have a Model B with 512mb ram, can anyone help me as to which pins i should be connecting the wires to as I keep finding oncflicting information on the internet?

DaveCummings
Posts: 36
Joined: Tue May 29, 2012 8:26 pm
Location: Liverpool UK
Contact: Website

Re: Getting a small screen to work on my pi

Fri Jul 11, 2014 8:02 am

btw the pins are for the scvreen as as follows:

1-RST – Reset
2-CE – Chip Enable
3-DC – Data/Command
4-DIN – Serial Input
5-CLK – Clock Input
6-VCC – Power
7-BL – LED Backlight
8-GND – Ground

johndough
Posts: 254
Joined: Sun Jan 13, 2013 2:00 pm

Re: Getting a small screen to work on my pi

Fri Jul 11, 2014 8:27 am

DaveCummings wrote:btw the pins are for the scvreen as as follows:

1-RST – Reset
2-CE – Chip Enable
3-DC – Data/Command
4-DIN – Serial Input
5-CLK – Clock Input
6-VCC – Power
7-BL – LED Backlight
8-GND – Ground

Hiya

This looks similar

https://learn.adafruit.com/nokia-5110-3 ... chrome-lcd

and may help.

As you say there are several connection lists.

1 VCC Positive power supply Input Supply range is between 2.7V and 3.3V
2 GND Ground Input
3 SCE Chip select Input Active low
4 RST Reset Input Active low
5 D/C Mode select Input Select between command mode (low) and data mode (high).
6 DN(MOSI) Serial data in Input
7 SCLK Serial clock Input
8 LED LED backlight supply Input Maximum voltage supply is 3.3V.

klricks
Posts: 6549
Joined: Sat Jan 12, 2013 3:01 am
Location: Grants Pass, OR, USA
Contact: Website

Re: Getting a small screen to work on my pi

Fri Jul 11, 2014 12:48 pm

DaveCummings wrote:I have bought one of these:

http://www.ebay.co.uk/itm/84x48-1-6-LCD ... _492wt_904

now I cannot get it to run I have soldered it as required and all the connections buzz out fine with a tester but it doesnt appear to be turning on. I have a Model B with 512mb ram, can anyone help me as to which pins i should be connecting the wires to as I keep finding oncflicting information on the internet?
The link given in the ebay listing has connection information and driver / kernel installation instructions:
http://www.bartbania.com/raspberry_pi/r ... pberry-pi/
Unless specified otherwise my response is based on the latest and fully updated Raspbian Buster w/ Desktop OS.

DaveCummings
Posts: 36
Joined: Tue May 29, 2012 8:26 pm
Location: Liverpool UK
Contact: Website

Re: Getting a small screen to work on my pi

Fri Jul 11, 2014 1:02 pm

Yes I have seen that but the pinouts are difficult to follow

klricks
Posts: 6549
Joined: Sat Jan 12, 2013 3:01 am
Location: Grants Pass, OR, USA
Contact: Website

Re: Getting a small screen to work on my pi

Fri Jul 11, 2014 1:19 pm

DaveCummings wrote:Yes I have seen that but the pinouts are difficult to follow
From the link:
LCD --> RPi
RST --> pin 18 (GPIO24)
CE --> pin 24 (SPI_CE0)
DC --> pin 16 (GPIO23)
DIN --> pin 19 (SPI_MOSI)
CLK --> pin 23 (SPI_SCLK)
VCC --> pin 1 (3v3)
LED --> pin 12 (GPIO18) to allow varying the brightness
GND --> whichever GND pin is convenient

It does not get any easier than this. What are you having trouble with?
Unless specified otherwise my response is based on the latest and fully updated Raspbian Buster w/ Desktop OS.

DaveCummings
Posts: 36
Joined: Tue May 29, 2012 8:26 pm
Location: Liverpool UK
Contact: Website

Re: Getting a small screen to work on my pi

Fri Jul 11, 2014 1:27 pm

I was seeing gpio23 thinking it was pin 23 (facepalm.)

dummy
Posts: 3
Joined: Wed Mar 27, 2013 12:20 am

Re: Getting a small screen to work on my pi

Fri Sep 11, 2015 2:47 pm

Resurrecting this old thread...
Can maybe someone help me in connecting this display via software SPI, not hardware, like million tutorials online? The only info I got was from the official Adafruit page
https://learn.adafruit.com/nokia-5110-3 ... rary/usage
where this concept is documented in the source code:

Code: Select all

# Raspberry Pi software SPI config:
# SCLK = 4
# DIN = 17
# DC = 23
# RST = 24
# CS = 8
Trouble is: I don't have the Adafruit version, but the "chinese one": VCC, GND, SCE, RST, D\C, DN(MODI), SCLK and LED. Well, i connected it anyway (let's say CS is SCE), but nothing shows up on i2cdetect. Has someone did this with my cheap display?

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