The following circuit shows a example implementation for the AT833 Module. This Module is available on request info@kk-t.de. Each pin and its functionality is described in the table below.

Pin	Description	Mandatory	Function	Use	Wiring
P0.03	FIXTURE_IS_ON	Yes	Whenever this Pin is high the Vision Controller is in On State. If this Pin is low, the Vision Controller goes to sleep. If the fixture is in normal Operation (Power On) it should set this Pin to high. If the fixture is turned off, sleeping or in a wake up state this pin should be low. When the fixture wakes up due to the „MAIN_WAKEUP“ from the Vision Controller, make sure this Pin is still low!	High: Vision Controller normal operation Low: Vision Controller sleep mode	Pull Down (100K)
P0.02	MAIN_WAKEUP	No	This Pin is used for signalling that the Vision Controller wants to communicate with the fixture. It is also used to wake up the main controller in order to communicate. This pin is pulled high as long the Vision Controller wants to communicate with the fixture.	This Pin is pulled high if communication is needed. Normal operation this pin is always high.
P0.18	RESET	Yes	Programming SWD	–	–
SWCLK	SWCLK	Yes	Programming SWD	–	–
SWDIO	SWDIO	Yes	Programming SWD	–	–
P0.31	SPI MISO	Yes	SPI Communication Master Input Slave Output	–	–
P1.09	SPI MOSI	Yes	SPI Communication Master Output Slave Input	–	–
P0.20	SPI_CLK	Yes	SPI Communication Clock	–	–
P0.29	SPI_CS	Yes	SPI Communication Chip Select	–	–
P0.30	IRQ	Yes	SPI Communication Interrupt Signal	–	–
P0.09	NFC1	No	NFC Antenna	–	–
P0.10	NFC2	No	NFC Antenna	–	–
P0.04	I2C_SCL	No	I2C Clock	–	Pull Up (10K)
P0.05	I2C_SDA	No	I2C Data	–	Pull Up (10K)
P0.15	IR_VCC	No	Switchable VCC for IR Sensor	In order to minimize current consumption	–
P0.11	IR_INPUT	No	Output of IR Sensor	–	–
P0.28	LED	No	Signal State	–	–

The following components should be used:

• AT833

Here you can download the schematic as PDF. Under the example project you can also find the Altium schematics: