linux-works
DIY: delta-1 and delta-2 jumper settings
delta-1 (top) and delta-2 (bottom).
delta-1 is a resistor (divider) attenuator. this one is 128db, 8bit, half dB spacing per step.
delta-2 is an 8port in/out selector for stereo systems. left group of 2 are the input section and right group of 2 are the output. you can use as many or as few relays as you want and each one can be in or out; nothing is forced and each port is selectable as in/out on its own.
note the far left clusters of jumpers, all the way to the left; these set the i2c address of the port-expanders. this set of addresses shows the default jumper settings for the LCDuino-1's initial firmware, Volu-Master v1.0.
board blanks and relays are available in the AMB.org audio parts web store.
DIY: delta-1 and delta-2 jumper settings
delta-1 (top) and delta-2 (bottom).
delta-1 is a resistor (divider) attenuator. this one is 128db, 8bit, half dB spacing per step.
delta-2 is an 8port in/out selector for stereo systems. left group of 2 are the input section and right group of 2 are the output. you can use as many or as few relays as you want and each one can be in or out; nothing is forced and each port is selectable as in/out on its own.
note the far left clusters of jumpers, all the way to the left; these set the i2c address of the port-expanders. this set of addresses shows the default jumper settings for the LCDuino-1's initial firmware, Volu-Master v1.0.
board blanks and relays are available in the AMB.org audio parts web store.