git clone https://github.com/ASMfreaK/esphome_max7219.git max7219grid- Use this example configuration
esphome:
# ...
includes:
- max7219grid/max7219grid.hpp
# ...
spi:
clk_pin: D1
mosi_pin: D2
id: _spi
custom_component:
- lambda: |-
using Disp = esphome::display::MAX7219GridComponent;
auto grid = new Disp(id(_spi), new esphome::GPIOPin(D3, OUTPUT), 100);
grid->set_num_chips(4);
auto writer = [](Disp& it){
static uint16_t offset=0;
++offset;
for(uint16_t l=0; l< it.width(); ++l){
it.fill_vertical_line(l, 0x1 << ((l + offset) % it.height()));
}
};
grid->set_writer(writer);
return {grid};