CYD Internet radio

Recently I've been playing with the Cheap Yellow Display boards. They are an ESP-32 on the back of a 2.8 inch LCD display with touch. One of the most interesting projects is an Internet Radio. Source code is here.

The boards have quite a range of devices already in place such as an RGB LED and an audio amplifier, other I/O is nicely taken out to sockets on the edge. (I've upgraded my 3D case design to add holes for these). I've just got it working:

You'd think it would be possible to use the on-board audio DAC with the speaker driver but unfortunately the I/O is shared with one of the touch screen lines. An external audio DAC should be used.

I changed a few of the constants to use the pins available on my version of the board (The USB-C one) as follows:

// On the USB-C CYD

const int I2S_BCKL = GPIO_NUM_18; // BLU --> BCKL | // 26 |

const int I2S_WSEL = GPIO_NUM_19; // YEL --> WSEL |UDA1334A // 25 | when using spkr output

const int I2S_DOUT = GPIO_NUM_23; // RED --> DIN | // 27 |

// also GPIO_NUM_27 BLK

// 3.3V RED VIN

// GND GRN GND

Other changes I made included the screen rotation and time zone for my area.

It's now playing lovely classical music, although it's a bit glitchy for some reason. My touch screen doesn't seem to be working so I plan to figure that out next. Thanks to John VK2ASU for the prompt to work on this.