the chip designed to decode standard RC 1-2ms PWM channels to control most digital cameras, it works with all Panasonics.
all output are open source switches, while in OFF state the switch is Hi-Z (no effect on camera control at all), active switch about 27 Ohm . You can use just one channel and leave 2nd channel floating, No resistors needed to pull unused I/O
zoom swtches active while pulse is in0.9-1.3ms or 1.7-2.1ms range
focus/shutter switches in high impedance state while pulse is 1.45ms or shorter
focus swith closed at >1.45ms and both switches close at >1.7ms