linux-works
DIY: LCDuino-1 and 7805 in 'proto holes' area
first use of the proto-pads area: lm7805 5v regulator chip. the input comes from the other side of the board, via a 2 pin molex header. the output (bottom 2 pins) of the 7805 chip are going to the board's 5v supply rails, thus the voltage regulator is now supplying clean power for the whole board.
also of note is the orange electrolytic at the top of the picture. that's straddled across analog-in-0 and ground and provides a smoothing effect on the LM35 temperature sensor, inside my espresso machine. this is not needed for audio (!) but only for when you load the ESPRESSOmaster firmware on this device.
DIY: LCDuino-1 and 7805 in 'proto holes' area
first use of the proto-pads area: lm7805 5v regulator chip. the input comes from the other side of the board, via a 2 pin molex header. the output (bottom 2 pins) of the 7805 chip are going to the board's 5v supply rails, thus the voltage regulator is now supplying clean power for the whole board.
also of note is the orange electrolytic at the top of the picture. that's straddled across analog-in-0 and ground and provides a smoothing effect on the LM35 temperature sensor, inside my espresso machine. this is not needed for audio (!) but only for when you load the ESPRESSOmaster firmware on this device.