MandoPuter
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Breazile
Unable to have Adafruit 1.3" LCD display anything
I bought the suggested "1.3" display](https://www.adafruit.com/product/4313)
I've commented out the other DISPLAY and uncommented "1.3 LCD". the screen stays black with the backlight on. the neopixel would display color based on the current battery level.
I am running the latest stable circuitpython v5.3.1
any assistance would be appreciated
There are a couple 1.3" LCDs. Do you have the regular one, or the monochrome OLED one selected in the config (check the link in the config line comment)? If the right LCD is selected in the config, then send me some pictures of the wiring.
Regards, Jon
From: ishtob [email protected] Sent: Saturday, September 5, 2020 12:01 AM To: Breazile/MandoPuter [email protected] Cc: Subscribed [email protected] Subject: [Breazile/MandoPuter] Unable to have Adafruit 1.3" LCD display anything (#1)
I bought the suggested "1.3" display](https://www.adafruit.com/product/4313https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.adafruit.com%2Fproduct%2F4313&data=02%7C01%7C%7C7c5b91c3b4be446e51fc08d8516993a8%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637348861169403618&sdata=HR8uMzDpqvsiEF2pgOPwqC9R15AaXLIRGw%2Bg%2BDHwCiI%3D&reserved=0)
I've commented out the other DISPLAY and uncommented "1.3 LCD". the screen stays black with the backlight on. the neopixel would display color based on the current battery level.
I am running the latest stable circuitpython v5.3.1
any assistance would be appreciated
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Hey Jon,
I had to order an itsy bitsy and all the accessories. Your instructions are unclear about the ground once you wire the three pin poly to the its bits. How do I ground the LCD? I am having loading issues as well. Just a black lit screen with nothing going on.
Which LCD are you using?
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From: Ianjkingsf [email protected] Sent: Wednesday, October 28, 2020 12:15:42 AM To: Breazile/MandoPuter [email protected] Cc: Jon Breazile [email protected]; Comment [email protected] Subject: Re: [Breazile/MandoPuter] Unable to have Adafruit 1.3" LCD display anything (#1)
Hey Jon,
I had to order an itsy bitsy and all the accessories. Your instructions are unclear about the ground once you wire the three pin poly to the its bits. How do I ground the LCD? I am having loading issues as well. Just a black lit screen with nothing going on.
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As you can see, I soldered the ground from the LCD to the top of the ground on the poly, which is three-pin soldered to the its bits.
Looks reasonable, and I think you are missing the wire that goes to TCS (TFTCS, TFT_CS). Here is how I connected the wiring to my test board. The one I am holding goes to the LCD ground.
You also need to edit the code.py file on the board once you hook it up to your computer. Select the ItsyBitsy board and the 1.3” LCD. I’ll send the file once I’m in front of my PC
[Image.jpeg][Image.jpeg]
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From: Ianjkingsf [email protected] Sent: Wednesday, October 28, 2020 12:42:23 AM To: Breazile/MandoPuter [email protected] Cc: Jon Breazile [email protected]; Comment [email protected] Subject: Re: [Breazile/MandoPuter] Unable to have Adafruit 1.3" LCD display anything (#1)
As you can see, I soldered the ground from the LCD to the top of the ground on the poly, which is three-pin soldered to the its bits.
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Download the Zip file, and copy everything to the board once you have it connected to your PC. The latest version has the updated font:
https://github.com/Breazile/MandoPuter/blob/master/MandoPuter.zip
Then copy the attached code.py file and overwrite the one that is there. I have made the selections for you. If that does not work then you might need to update the CircuitPython on the board depending upon how old it is. Instructions here:
https://learn.adafruit.com/welcome-to-circuitpython/installing-circuitpython
If things still do not work then we can double check the wiring. Let me knows if you need help.
Here are where the LCD pins go:
Vin - 3V 3v3 - no connection GND - battery ground SO - no connection SI - MOSI TCS - pin 2 RST - pin 4 D/C - pin 3 CCS - no connection Lite - no connection
From: Ianjkingsf [email protected] Sent: Wednesday, October 28, 2020 12:42 AM To: Breazile/MandoPuter [email protected] Cc: Jon Breazile [email protected]; Comment [email protected] Subject: Re: [Breazile/MandoPuter] Unable to have Adafruit 1.3" LCD display anything (#1)
As you can see, I soldered the ground from the LCD to the top of the ground on the poly, which is three-pin soldered to the its bits.
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I did all the software and code editing. That is not the issue.
Also, I did just connect the TCS. No change. The LCD lights up black screen, but no code, not text. Also, no independent battery power when I connect the battery.
Do you see the onboard LED go green and then red when you power it up? Check to make sure there is no short, hard to see from the photos, but the power leads are pretty close
Get Outlook for iOShttps://aka.ms/o0ukef
From: Ianjkingsf [email protected] Sent: Wednesday, October 28, 2020 1:14:54 AM To: Breazile/MandoPuter [email protected] Cc: Jon Breazile [email protected]; Comment [email protected] Subject: Re: [Breazile/MandoPuter] Unable to have Adafruit 1.3" LCD display anything (#1)
I did all the software and code editing. That is not the issue.
Also, I did just connect the TCS. No change. The LCD lights up black screen, but no code, not text. Also, no independent battery power when I connect the battery.
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[Image.jpeg] Get Outlook for iOShttps://aka.ms/o0ukef
From: Jon Breazile [email protected] Sent: Wednesday, October 28, 2020 1:33:40 AM To: Breazile/MandoPuter [email protected]; Breazile/MandoPuter [email protected] Cc: Comment [email protected] Subject: Re: [Breazile/MandoPuter] Unable to have Adafruit 1.3" LCD display anything (#1)
Do you see the onboard LED go green and then red when you power it up? Check to make sure there is no short, hard to see from the photos, but the power leads are pretty close
Get Outlook for iOShttps://aka.ms/o0ukef
From: Ianjkingsf [email protected] Sent: Wednesday, October 28, 2020 1:14:54 AM To: Breazile/MandoPuter [email protected] Cc: Jon Breazile [email protected]; Comment [email protected] Subject: Re: [Breazile/MandoPuter] Unable to have Adafruit 1.3" LCD display anything (#1)
I did all the software and code editing. That is not the issue.
Also, I did just connect the TCS. No change. The LCD lights up black screen, but no code, not text. Also, no independent battery power when I connect the battery.
— You are receiving this because you commented. Reply to this email directly, view it on GitHubhttps://eur05.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FBreazile%2FMandoPuter%2Fissues%2F1%23issuecomment-717772264&data=04%7C01%7C%7Cce54a594833f444bf54508d87b198da6%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637394696959534508%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=fX%2F%2FGVg9OSrn9rDYsgOUJUIsveSEz%2Bm%2BujPtOGFvItY%3D&reserved=0, or unsubscribehttps://eur05.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnotifications%2Funsubscribe-auth%2FAOFBCULOXNUHBS7B23ARYITSM7HH5ANCNFSM4Q2QSV4Q&data=04%7C01%7C%7Cce54a594833f444bf54508d87b198da6%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637394696959544503%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=SC9BefknUlejG%2BQmR6mUBJoJRMLBKwhXMS5dMpG9euM%3D&reserved=0.
The 1.3 LCD same as the guy above.
I am new to soldering.
You are missing the TCS connection and from the looks of it, there’s a few blobs of solder overlapping. You probably have a short somewhere. Make sure all cables lead to the correct pins too.
I've added the TCS connection. The leads and pins are correct. However, the blob might be causing a short? How do I ground the LCD screen on top of the poly?
I’m not sure I understand your last question. Do you mean attaching the LCD? It is already grounded through the ground wire.
If the LEDs on the board light up and change then you have power.
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From: Ianjkingsf [email protected] Sent: Wednesday, October 28, 2020 11:24:08 AM To: Breazile/MandoPuter [email protected] Cc: Jon Breazile [email protected]; Comment [email protected] Subject: Re: [Breazile/MandoPuter] Unable to have Adafruit 1.3" LCD display anything (#1)
I've added the TCS connection. The leads and pins are correct. However, the blob might be causing a short? How do I ground the LCD screen on top of the poly?
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I updated the ZIP package with new libraries. With CircuitPython 7.3.3 the ItsyBitsy would throw an error because the libraries were older. Things are working now, so give the new release a try, and update your board to the latest CurcuitPython if you have not already.
Instructions on updating the ItsyBitsy are here: https://learn.adafruit.com/introducing-adafruit-itsybitsy-m4/update-the-uf2-bootloader