Difference between revisions of "RGB64x32MatrixPanel"
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* https://www.tinytronics.nl/shop/en/audio/knobs/potmeter-knob-black-orange-flat | * https://www.tinytronics.nl/shop/en/audio/knobs/potmeter-knob-black-orange-flat | ||
| − | == MCU == | + | == MCU Pin Issues == |
| + | The MCU has several pins with limited functionality or they are not connected. The wiring guide suggests using pins 16/17 for example, but on WROVER they aren't connected. | ||
| + | |||
| + | The final mapping I used is: | ||
| + | |||
| + | <pre> | ||
| + | IO2 G2 | ||
| + | IO4 LAT | ||
| + | IO5 C | ||
| + | IO18 CLK | ||
| + | IO19 B | ||
| + | IO21 B2 | ||
| + | IO22 OE | ||
| + | IO23 A | ||
| + | IO25 R1 | ||
| + | IO26 G1 | ||
| + | IO27 B1 | ||
| + | IO32 R2 | ||
| + | IO33 D | ||
| + | </pre> | ||
Revision as of 18:02, 25 September 2020
RGB64x32MatrixPanel on ESP32
For a friend I'm making a RGB LED panel, and need to pull some social media numbers and display them on the panel.
For this I wanted an ESP32 so it could do HTTP REST calls over wifi. I came across this library for efficiently talking to HUB75 RGB panels on an ESP32:
https://github.com/mrfaptastic/ESP32-RGB64x32MatrixPanel-I2S-DMA
Parts List
- https://www.tinytronics.nl/shop/en/platforms/ttgo/lilygo-ttgo-t7-mini32-v1.4-esp32-wrover Cheap Wemos clone
- https://www.tinytronics.nl/shop/en/power-supplies/5v/mean-well-power-supply-5v-7a-switching-power-supply-lrs-35-5
- https://www.tinytronics.nl/shop/en/lighting/led-matrix/64x32-rgb-led-matrix-320x160-mm (comes with IDC data cable and powercable)
- https://www.tinytronics.nl/shop/en/connectors/pin-header/16-pins-header-connector-2x8p
- https://www.tinytronics.nl/shop/en/components/resistor/10k%CF%89-potmeter-type-rv09 (adjusting brightness)
- https://www.tinytronics.nl/shop/en/audio/knobs/potmeter-knob-black-orange-flat
MCU Pin Issues
The MCU has several pins with limited functionality or they are not connected. The wiring guide suggests using pins 16/17 for example, but on WROVER they aren't connected.
The final mapping I used is:
IO2 G2 IO4 LAT IO5 C IO18 CLK IO19 B IO21 B2 IO22 OE IO23 A IO25 R1 IO26 G1 IO27 B1 IO32 R2 IO33 D