Timeline for How many LED displays can be hooked to one Arduino board?
Current License: CC BY-SA 4.0
7 events
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| Jun 9, 2020 at 17:43 | comment | added | Gerben |
@chrisl on the SSD1306 you can select a second address, but I'm not sure the PCB in the product listed, breaks out the D/C# pin. Even then, you can only connect two. You could bitbang I2C on other pins. But you'd need two pins for each display, and you would run out of pins pretty quick. Also the library you use for the displays might only support the hardware I2C pins.
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| Jun 9, 2020 at 14:24 | comment | added | chrisl | Without any additional electronics: Exactly one. On each I2C interface every address needs to be unique. Since you cannot change the address of the display, 1 is the limit. Majenkos answer gives you a hint how to deal with that. | |
| Jun 9, 2020 at 14:05 | comment | added | Mihai Raulea | okay, thanks, so how many? | |
| Jun 9, 2020 at 13:53 | comment | added | chrisl | The product, that you linked, is an OLED display, not an LCD display | |
| Jun 9, 2020 at 13:50 | answer | added | Majenko | timeline score: 2 | |
| Jun 9, 2020 at 13:36 | review | First posts | |||
| Jun 9, 2020 at 16:25 | |||||
| Jun 9, 2020 at 13:34 | history | asked | Mihai Raulea | CC BY-SA 4.0 |