pi weather

Hi to all have a question i am a backer for the kickstarter DIY Weather on your Raspberry Pi.
I have taken the dust of my weather kit, never used it until now. But i am unable to use it i have been reading i can connected to the pi and everything tuns on i also send the i send the ic2 test (sudo i2cdetect -y 1) i get information other than that i cant get anything only errors. i have been reading and theres a lot of mention of the  I2C Bus Multiplexor, do i need it to start using the weather station?, i have also read that i need to connect some jumpers cable to give power to a board i am ok? I can not seem to see were they go.
Thanks and help

sudo i2cdetect -y 1

0 1 2 3 4 5 6 7 8 9 a b c d e f

00: -- -- -- -- -- -- -- -- -- -- -- -- --

10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

30: -- -- -- -- -- -- -- -- -- -- -- -- 3c -- -- --

40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

50: -- -- -- -- -- -- -- 57 -- -- -- -- -- -- -- --

60: -- -- -- -- -- -- -- -- 68 -- -- -- -- -- -- --

70: -- -- -- -- -- -- -- 77


sudo test python testSDL_Pi_TC
CA9545.py



Test SDL_Pi_TCA9545 Version 1.0 - SwitchDoc Labs



Sample uses 0x73

Program Started at:2018-04-16 23:53:02



Traceback (most recent call last):

File "testSDL_Pi_TCA9545.py", line 51, in <module>

tca9545 = SDL_Pi_TCA9545.SDL_Pi_TCA9545(addr=TCA9545_ADDRESS, bus_enable = TCA9545_CONFIG_BUS0)

File "/home/pi/SDL_Pi_GroveWeatherPi/SDL_Pi_TCA9545/SDL_Pi_TCA9545.py", line 47, in __init__

self._write(TCA9545_REG_CONFIG, config)

File "/home/pi/SDL_Pi_GroveWeatherPi/SDL_Pi_TCA9545/SDL_Pi_TCA9545.py", line 52, in _write

self._bus.write_byte_data(self._addr, register, data)

IOError: [Errno 121] Remote I/O error

pi@raspberrypi:~/SDL_Pi_GroveWeatherPi/SDL_Pi_TCA9545 $