Troubleshooting

Problem with LED matrix and ESP32

userHead Miłosz.Białek 2024-07-14 10:56:08 178 Views0 Replies

Hi, im kinda new to electronics, but Im trying to write some app for wifi control over LED matrix using ESP-WROOM-32 (I think its just ESP32). The problem is that even after all connections even one LED is not on.

Im using this matrix:

https://wiki.dfrobot.com/32x16_RGB_LED_Matrix_-_6mm_pitch_SKU_DFR0471#target_3

this microcotroller:

https://botland.com.pl/moduly-wifi-i-bt-esp32/8893-esp32-wifi-bt-42-platforma-z-modulem-esp-wroom-32-zgodny-z-esp32-devkit-5904422337438.html

and this as the power supply:

https://botland.com.pl/zasilacze-montazowe/5839-zasilacz-montazowy-mean-well-rs-25-5-5v5a25w-5904422309510.html

I cheked thats not the problem of power supply using gauge.

 

Here's the map of how I connect everything on the left matrix on the right GPIO's of ESP32. Please help somebody. I tried to at least turn on one led for like 3 days and still manage to do any progress.

 

1.G1 -> D34

2. R1 -> D35 

3. GND -> GND 

4. B1 -> D32 

5. G2 -> D33 

6. R2 -> D25 

7. GND -> GND 

8. B2 -> D26 

9. B -> D27 

10. A -> D23 

11. NC -> NOT CONNECTED 

12. C -> D22 

13. STB -> D21 

14. CLK -> D19 

15. GND -> GND 

16. OE -> D18