I am trying to read bme280 & tsl2561 on Pi Zero. I have connected bme280 to Pi Zero on Pin 3-I2C.1 SDA & Pin 5-I2C.1 SCL and was able to read the data over i2c following these instruction. Then connected tsl2561 to Pin 27-I2C.0 SDA & Pin 28-I2C.0 SCL.
When I list I2C connected devices with ls /dev/*i2c* it shows me just /dev/i2c-1. Why I am seeing just one device ?
Output of i2cdetect -y 1 was
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- 76 --
when I tried i2cdetect -y 0 got
Error: Could not open file `/dev/i2c-0' or `/dev/i2c/0': No such file or directory
Also tried to run TSL2561.py but got following error
$ python TSL2561.py
Traceback (most recent call last):
File "TSL2561.py", line 16, in <module>
bus.write_byte_data(0x39, 0x00 | 0x80, 0x03)
IOError: [Errno 121] Remote I/O error
Are Physical pin 27 & 28 are Pin 27-I2C.0 SDA & Pin 28-I2C.0 SCL respectively on Pi Zero W ? If yes what I need to do to activate them to read tsl2561 through them ?
Kernel Version : Linux pod01 4.14.79+ #1159 Sun Nov 4 17:28:08 GMT 2018 armv6l GNU/Linux
