LCD SPI projects.

camerart · Oct 15, 2017

Hi,
Using the 5110 LCD as a readout, many projects can be achieved. Many modules have SPI connections, including GPS, Barometer/Altitude, Temperature, etc
Using this as a base: https://www.electro-tech-online.com/threads/pic-with-48x84-lcd-screen.150378/page-7
Any interest?
Camerart.

ericgibbs · Oct 15, 2017

hi C,
I get a page read error when clicking your link.
E
EDIT:
Have you a specific project in mind.?

Ian Rogers · Oct 15, 2017

There were two sets of links, together... Fixed now..

camerart · Oct 16, 2017

ericgibbs said:
hi C,
I get a page read error when clicking your link.
E
EDIT:
Have you a specific project in mind.?

Hi E,
I have lots of ideas, but to put some sense to it, first I would like to make a test PCB to test some modules.
Here are 3x PDFs for GPS, Barometer and Compass:
The actual modules may change, but they will all be SPI.

NOTE: After reading the Barometer PDF, I found that they need special care, handling, soldering and cleanliness. I had to order for some special solder paste too.
EDIT: I've just ordered some of these https://www.ebay.com/itm/BMP280-3-3...ospheric-Arduino-Replace-BMP180-/321988583888
C.

Nigel Goodwin · Oct 16, 2017

camerart said:
NOTE: After reading the Barometer PDF, I found that they need special care, handling, soldering and cleanliness. I had to order for some special solder paste too.
C.

Why not buy the sensor ready mounted on a breakout board? - there are plenty of such items easily available at low cost, usually aimed at Arduino users, plus lot's of example projects (using 5110 LCD's), again aimed at Arduino users - YouTube is a good place to look.

camerart · Oct 16, 2017

Nigel Goodwin said:
Why not buy the sensor ready mounted on a breakout board? - there are plenty of such items easily available at low cost, usually aimed at Arduino users, plus lot's of example projects (using 5110 LCD's), again aimed at Arduino users - YouTube is a good place to look.

Hi N,
I went to a lecture about balloon tracking, then watched and tracked a balloon (http://habhub.org/), where I saw tiny lightweight circuits, which I aspire to be able to make.
C.

camerart · Oct 17, 2017

Nigel Goodwin said:
Why not buy the sensor ready mounted on a breakout board? - there are plenty of such items easily available at low cost, usually aimed at Arduino users, plus lot's of example projects (using 5110 LCD's), again aimed at Arduino users - YouTube is a good place to look.

Hi N,
I had a rethink! As the GPS modules prefer to be away from the circuit, I'll add a socket to the board.
I'll also add one for the Compass, as it may be better for placement.
Thanks.
C.

camerart · Oct 19, 2017

Hi E,
I've just updated #4 as I've ordered some modules.

Barometer sensor: I'm making a circuit with the earlier surface mount sensor, but I've just ordered some more already mounted on boards BMP280.

GPS modules: I've ordered some GPS modules NEO-8M, and they come on boards too (Including voltage regulator antenna etc) . They appear to be RX TX operated, but I'm sure SPI can be used if wired appropriately.
C.

camerart · Oct 30, 2017

Hi,
I am changing PICs fro 18LF2520 to 18LF4520, because while redrawing the Schematic I realise that I will have to start again if I run out of PINs.

NOTE: from now on all of the PIN outs will be different from above examples!
C.

Nigel Goodwin · Oct 30, 2017

camerart said:
Hi,
I am changing PICs fro 18LF2520 to 18LF4520, because while redrawing the Schematic I realise that I will have to start again if I run out of PINs.

NOTE: from now on all of the PIN outs will be different from above examples!
C.

Interesting, I've ordered some 18F26K22's, rather than the 46K22's because the 26 is smaller

I don't really find 24 I/O pins particularly limiting, and the 40 pin devices just seem rather large?.

camerart · Oct 30, 2017

Hi N,
Size was the reason I wanted to use 5110 LCDs, and I realise the 18F4520 is a bit big, so I tried surface mount 18LF4520, which is 3.3v and if I'm correct, is less than 15mm square and flatish.
C.

Nigel Goodwin · Oct 30, 2017

camerart said:
Hi N,
Size was the reason I wanted to use 5110 LCDs, and I realise the 18F4520 is a bit big, so I tried surface mount 18LF4520, which is 3.3v and if I'm correct, is less than 15mm square and flatish.
C.

Yes, SM versions are (or can be) nice and small - but don't fit too well on Veroboard

Incidentally, a 28 pin skinny DIP PIC will fit underneath a 5110, so is plenty small enough.

ericgibbs · Oct 31, 2017

hi Nigel.
Have you seen these 28pin TTSOP to DIL PCB's.?
https://www.amazon.co.uk/JIUWU-Qual...coding=UTF8&psc=1&refRID=WFANQBJ7SG36Y1BDCR7Y

BTW: its a long time ago since I had my last swimming 'skinny dip'

E

camerart · Oct 31, 2017

ericgibbs said:
hi Nigel.
Have you seen these 28pin TTSOP to DIL PCB's.?
https://www.amazon.co.uk/JIUWU-Qual...coding=UTF8&psc=1&refRID=WFANQBJ7SG36Y1BDCR7Y

BTW: its a long time ago since I had my last swimming 'skinny dip'

E

Hi E,
If my PCBs are successful, I can post him a couple, if he's interested.

Your last swimming 'skinny dip' ! I can't unsee my mental image now
C.

camerart · Oct 31, 2017

Hi,
Here's a schematic of a prototype PCB.
Any comments, corrections please.
EDIT: Updated 011117
C

Nigel Goodwin · Oct 31, 2017

ericgibbs said:
hi Nigel.
Have you seen these 28pin TTSOP to DIL PCB's.?
https://www.amazon.co.uk/JIUWU-Qual...coding=UTF8&psc=1&refRID=WFANQBJ7SG36Y1BDCR7Y
E

I've not seen those specific ones, but I have seen similar - but they don't give you 'skinny DIP' anyway, which is one reason for choosing the chips that size. I have used similar 8 pin adaptors to convert memory chips.

BTW, my 18F's have arrived, I've stuck one in my new board, connected my new TFT board to it, inserted a 240x320 TFT and loaded the TFT demo I'd got (and configured to suit my TFT board). It worked first time

If I can get some sort of decent recording, I'll stick a video up.

ericgibbs · Oct 31, 2017

hi,
I have just received my 2.2 inch colour SPI ILI9225 TFTs, my initial reaction is considering using Oshonsoft basic will be a non starter.
May have to familiarise my self with the programming by using Arduino libs and demo's before attempting the Basic.

E

Nigel Goodwin · Oct 31, 2017

ericgibbs said:
hi,
I have just received my 2.2 inch colour SPI ILI9225 TFTs, my initial reaction is considering using Oshonsoft basic will be a non starter.
May have to familiarise my self with the programming by using Arduino libs and demo's before attempting the Basic.

I really think porting Arduino libraries is the way to go, there's just so much Arduino stuff out there.

The most popular Arduino graphics library is the Ada_Fruit one, who also provide various libraries to interface to different graphics modules (but not this one?).

This is the library I found, while I'm still waiting for mine to arrive:

https://github.com/Nkawu/TFT_22_ILI9225

camerart · Nov 1, 2017

Hi,
The schematic on #15 has been updated, with a few minor changes.
C.

ericgibbs · Nov 1, 2017

hi,
Unable to get a correct compile, used the direct method for the lib. Downloaded the zip from Nigel Goodwin post , ie: git hub
***Direct Install:***
* Click the **Download ZIP** button on the right to download **TFT_22_ILI9225-master.zip**
* Extract the ZIP file to the library folder your *arduinosketchfolder*/libraries/ folder. You may need to create the libraries subfolder if it's your first library.
* Rename the uncompressed folder from **TFT_22_ILI9225-master** to **TFT_22_ILI9225**
* Restart the Arduino IDE

This is the error msg in Arduino

Tried a number of times.

E

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