Help with data logger project - Adafruit Multiplexor and 4 Sparkfun VEML6075s

Using the I2C bus can be a little confusing, especially when you need to use repeated starts. You can only have one channel on the MUX active at a time, that is, only ONE bit in the control register can be set. So to talk to the VEML6075 on channel 0, send a 0x01 to address 0x70 then send your VEML6075 commands to address 0x10. I can review your sketches to see what's wrong. I can also provide a little test program to help you debug your system. Regards, Jim

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Hi there, if none of your sensors are recognized, then there is really something wrong with your sketch that you did not post or something wrong with your wiring can you kindly send me a message of your arduino code so i can take a look and fix it pretty quick send me your wiring as well you have not mentioned what temperature sensors you are using I am looking forward to hearing from you

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