I have a led that is being connected to another and a controller via SPI to receive instructions on what colors to use via daisy chain
pin1-12V+
pin2- GND
pin3- MOSI
pin4- MISO
pin5-CS
pin-SCK
what I want to do is have a back up for when the controller fails or if it's installed without a controller, to use the same 6 wires to have 2, saveable modes, bypassing the spi interface and run off of the built on memory
pin1-12V+
pin2- GND
pin3- MOSI -> 12V sense- bypass SPI
pin4- MISO -> CLK sync/ change mode pattern (mode wire must be connected to 12v at the same time to change the setting )
pin5- CS -> 12v to pin5 will enable mode1
pin6- SCK -> 12v to pin6 will enable mode2
the whole thing needs to be fast enough that an external 12V+ switching controller can make them flash just by setting the programed modes to a non-flashing pattern so to make it flash you simply add and remove the power to that mode pin.
pin1- power
pin2- gnd
pin3- 12V
pin4- Connected to other units to sync mcu clk
pin5- 12v on and off
pin6- nothing
if mode1 had been saved as a red light not flashing this would make the light turn on every time 12v power is added to the mode1 pin and off as power is removed.
pin1-12V+
pin2- GND
pin3- MOSI
pin4- MISO
pin5-CS
pin-SCK
what I want to do is have a back up for when the controller fails or if it's installed without a controller, to use the same 6 wires to have 2, saveable modes, bypassing the spi interface and run off of the built on memory
pin1-12V+
pin2- GND
pin3- MOSI -> 12V sense- bypass SPI
pin4- MISO -> CLK sync/ change mode pattern (mode wire must be connected to 12v at the same time to change the setting )
pin5- CS -> 12v to pin5 will enable mode1
pin6- SCK -> 12v to pin6 will enable mode2
the whole thing needs to be fast enough that an external 12V+ switching controller can make them flash just by setting the programed modes to a non-flashing pattern so to make it flash you simply add and remove the power to that mode pin.
pin1- power
pin2- gnd
pin3- 12V
pin4- Connected to other units to sync mcu clk
pin5- 12v on and off
pin6- nothing
if mode1 had been saved as a red light not flashing this would make the light turn on every time 12v power is added to the mode1 pin and off as power is removed.