hzeller
commented
6 years ago You have an E address line on Pin8 of the IDC. Does your active matrix adapter have that connected like the adapter provided in this project ?
Closed jtgijon closed 6 years ago
hzeller
commented
6 years ago You have an E address line on Pin8 of the IDC. Does your active matrix adapter have that connected like the adapter provided in this project ?
hzeller
commented
6 years ago So if it is this board http://s2.electrodragon.com/wp-content/uploads/2017/08/RGB-Matrix-Panel-Drive-Board-For-Raspberry-Pi-02.jpg You need to make sure to connect the E-line accordingly.
jtgijon
commented
6 years ago I forgot that connection. Now it works fine. Thanks,
hzeller
commented
6 years ago cool, have fun with your matrix!
Nakamal
commented
5 years ago Hi, we are working with almost identical equipment, we have a raspberry pi 3 B+, ada fruit RGB matrix bonnet for raspberry pi and the RGB Matrix Panel Drive Board For Raspberry Pi. We have 4 64x64 matrix boards but we are still just trying to make one of them display with the commands that we give. Do you have any advice (or hzeller if you're out there)? What sized batteries did you use?
jtgijon
commented
5 years ago Hello. 4 64x64 in a U form should work. I don't use adafruit bonnet but one from electrodragon (see avobe) and my pannel is a single module of 128x64 leds P2.5 1/32. If you use adafruit I supposse you need to change at least --led-gpio-mapping=adafruit-hat Please, describe the command line you use, the type of panel and what is displayed. There are some demo examples you can use to figure out what is happening (see "Running some demos" info in the "examples-api-use" section) For powering I use a power supply from lysonled of 5v 40A (40A are not needed for your setup) https://bit.ly/2ta8f1l
uros-skopus
commented
5 years ago Hey man, Where did you get that small red HUB? Can it be purchased online independent from LED module?
jtgijon
commented
5 years ago Hi. Yes I bought it at electrodragon. See my comments above
uros-skopus
commented
5 years ago Yap, I found it meantime. Thanks anyway! I would appreciate if you could take a look at my latest issue, maybe you can help: https://github.com/hzeller/rpi-rgb-led-matrix/issues/765
guyverckw
commented
4 years ago I forgot that connection. Now it works fine. Thanks,
Can you show me how you connect the E-line? I just got exactly the same LED panel as you did, want to test it out, thx!
jtgijon
commented
4 years ago Hello, For a 64x64 or 64x128 panel with 1/32 scan, you need to connect Pin 8 to pin E on the Drive Board and P4 to GND. More information at https://www.hackster.io/idreams/getting-started-with-rgb-matrix-panel-adaa49 Regards
guyverckw
commented
4 years ago Hello, For a 64x64 or 64x128 panel with 1/32 scan, you need to connect Pin 8 to pin E on the Drive Board and P4 to GND. More information at https://www.hackster.io/idreams/getting-started-with-rgb-matrix-panel-adaa49 Regards
Thanks a lot.
NoicTheBrave
commented
2 years ago Hello, For a 64x64 or 64x128 panel with 1/32 scan, you need to connect Pin 8 to pin E on the Drive Board and P4 to GND. More information at https://www.hackster.io/idreams/getting-started-with-rgb-matrix-panel-adaa49 Regards
Hey, all the way in 2021 here: Is there a way to do this with the Adafruit hat? To be specific: https://www.adafruit.com/product/3211
I was wondering if there was a way for me to do something similar with this hat. Unfortunately, I did not know about the Electrodragon one until it was too late. While I do not mind shelling out a few dollars for a new attachment, if there is a way to resolve this issue with my current hardware, it would be great.
I am also running this on the Raspberry Pi 4. It's worked great for the 32x32 display, but... I'm getting a half-and-half display, similar to that of the images above had.
hzeller
commented
2 years ago As far as I know, Adafruit has not updated their hat. So if you don't want to do the soldering, building the board from this project or getting the electrodragon one is probably simpler.
Overboard-code
commented
2 years ago I have the same 128x64 1/32 panel I see all of the pictures Unfortunately the ribbon cable covers the pads on the Electrdragon in all of the pictures. What did you jumper to get the E line working 8 or 4? In the link at https://www.hackster.io/idreams/getting-started-with-rgb-matrix-panel-adaa49 It just shows E jumped to 8 but not 4 to GND.
jtgijon
commented
2 years ago Hello, I don't have my board here but I remember to connect both. You can check it at https://www.electrodragon.com/w/RPI_RMP_HDK Regards
Overboard-code
commented
2 years ago Hello, Thanks so much. I will do both links. My Electrodragon has 8 hole/pads instead of 6 but looks much the same The advantage looks like that with 8 pads 2 pin jumpers would work.
I also found this link that shows both flavors of Electrodragon.
https://iot-for-maker.blogspot.com/2021/07/led-12-make-very-big-size-384-x-512-rgb.html
I will do this:
Reguards,
Andy
Thanks for this unique library. I have the following setup:
Hub75E is the following one:
It works the same using this two configurations:
--led-rows=64 --led-cols=64 --led-chain=2or--led-rows=64 --led-cols=128 --led-chain=1...although it is needed to use--led-slowdown-gpio=3as shown in #120 (values not described in README.md yet) The problem I have is similar than the issue commented by @AsafFisher in #120 , where there are displayed two strips of 16 leds each. This is what I get when trying to execute demo D0sudo ./demo --led-rows=64 --led-cols=128 --led-chain=1 --led-slowdown-gpio=3 --led-brightness=10 -D 0--led-multiplexingchange the multiplexing behaviour of the display but the black stripes continues.--led-row-addr-type=1seems to do something, but is not adapted for this panel as shown in the following picture:sudo ./demo --led-rows=64 --led-cols=128 --led-chain=1 --led-slowdown-gpio=3 --led-brightness=10 -D 3I’ve tested 16 PIN IDC cable and it seems to work fine. Any help to solve this problem will be appreciated very much.