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The Grove - 4-Channel SPDT Relay has four single pole - double throw (SPDT) switches. It only requires low-voltage and low current signals to control those switches.
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We've released the Seeed Relay Selection Guide, it will help you choose the relay that best suits your needs.
The Single Pole Double Throw SPDT relay is quite useful in certain applications because it has one common terminal and 2 contacts which are great for selecting between two options.
The Grove - 4-Channel SPDT Relay has four single pole - double throw (SPDT) switches. It only requires low-voltage and low current signals to control those switches. Specifically, you can use 5V DC to control max.250V AC or 110V DC.
The I2C address is changeable so that you can use multiple relay modules in the same project
We've Released the Grove Selection Guide and hope to help you find the Grove suit you best.
This is the wiki of Grove - 4-Channel SPDT Relay
Hi, We see you posted the question in forum, We will update it in forum. thanks.
Hi there, if you connect the due, it looks work. but there is current leakage on the relay board. So we do not suggest use the 3.3v for the module. thanks.