I try to control my LEDs with the 18-Channel 8-bit PWM LED Driver w/ I2C Interface on a Raspberry Pi 3. I’ve connected the board how described at the shop (Ground, VCC with 3V, SCL, SDA) but the i2cdetect don’t show the 0x54 address. The RasPi and the I2C works fine with other devices.
Do I have to wire to pin OU? Pull up to 3V?