One of my past PCB projects is the "pxlBlck_multiPCB". As the name suggests, this board is the heart of several future pxlBlck variants.

So far I have used the Wemos D1 Mini Board with the ESP8266 built into it as the main MCU in many projects. The circuit is supplied via a micro USB connection. Unfortunately, this forces you to reduce the power consumed to a maximum of 2.5W. The brightness of the connected LED matrices must therefore be reduced by software.

To get around this problem (among other things) I developed the pxlBlck_multiPCB. It not only has a USB-C port (which can be used to draw up to 15W), but also a lot of other practical components.

• ESP32 Wrover-B
• DS3232M RTC
• USB-C connection including programming option for the built-in ESP32
• BME280 climate sensor
• Micro SD card slot
• TSL2591 brightness sensor
• MPR121 touch sensor for up to 12 touch electrodes
• MAX98357 3W I2S DAC
• ADXL345 accelerometer
• IR LED
• QWIIC-I2C expansion port
• 10 × 10 SK6812 LED matrix (on the front of the board)

Additional build infos are available here:

https://nerdiy.de/en/howto-pcb-pxlblck_multipcb/

More info about the PCB is available in the following video: