Review on Comimark 8 Channel Muti Channel Expansion Development by Wayne Seba

Sturdy little board that can be easily soldered to the header. I mistakenly thought it was an I2C address converter so I could create a different address for each output. This is a copy of the Adafruit board with the same chip number (TCA9548A): there are no instructions or example code in the product. Description but if you search by the chip number you can find links to the Adafruit version which has very good instructions and sample code. I'm using this to run a 7x I2C 0.96"128x32 OLED as the HUD for my firewalls.