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authormrfaptastic <12006953+mrfaptastic@users.noreply.github.com>2023-04-16 14:36:57 +0100
committerGitHub <noreply@github.com>2023-04-16 14:36:57 +0100
commit8098af9b66ea9788444e4ba9ba0bb2fbbed542e2 (patch)
tree9a65259ff782284e84e0df910dbde282a826c029
parent4bff4955ca468d6ae3eae5df3eea9479c4c15dee (diff)
Update README.md
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diff --git a/README.md b/README.md
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@@ -133,6 +133,8 @@ HUB75_I2S_CFG mxconfig(
dma_display = new MatrixPanel_I2S_DMA(mxconfig);
```
+Make sure you also connect one of the HUB75 interfaces ground pins to a ground pin of the ESP32, otherwise you may get electrical artefacts on LED Matrix Panel.
+
Various people have created PCBs for which one can simply connect an ESP32 to a PCB, and then the PCB to the HUB75 connector, such as:
* Brian Lough's [ESP32 I2S Matrix Shield](http://blough.ie/i2smat/)