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16 Channel Electromagnetic Relay Module with I2C Interface. The SDA and SCL lines are pulled up to VDD with 5.6k resistors on the relay module. - Up to 8 boards can be connected to each I2C bus. - LEDs indicators for each electromagnetic relay channel.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.