The WS01 LED-Controller uses an ESP8266-S1 Module (16MBit Flash) Alle required Pins for programming are available, as well as additional GPIO4 and GPIO2.

Outside Images

PCB Image with pinout

GPIO2 & GPIO4 are working for I²C (2=SDA 4=SCL). (Tested with DS3231 Module ) The device uses an additional CD4050 at the pins used for PWM.