RELAYS-4-HAT is a relay switch control expansion board which specially designed for Raspberry Pi A / B.Designed by ACE design studio in China
RELAYS-4-HAT is a relay switch control expansion board which is specially designed for Raspberry Pi A / B . This expansion board provides four medium-power switching relays, four user defined ...Read More…
RELAYS-4-HAT is a relay switch control expansion board which is specially designed for Raspberry Pi A / B .
This expansion board provides four medium-power switching relays, four user defined buttons, five pin button external expansion interface, one I2C external expansion interface (compatible with GROVE interface), and use Screwless Terminal Block which is convenient and easy in operation.
The 4-switching relay can be used for switching control of various small and medium power electrical equipment. When the relay is closed, the corresponding red led on the board will light up, indicating that the relay has been turned on.
The 4 user defined buttons can be set as relay switch control buttons by writing corresponding programs to achieve manual control functions. The 5 pin button external expansion interfaces can be used to extend and expand the 4 user buttons.
The I2C external expansion interface uses a 4pin HY2.0 terminal block, which can connect various I2C interface sensors.
The item is not assembled.
|Switch Channel 1||Switch Channel 2||Switch Channel 3||Switch Channel 4|
|Relay 1-->GPIO26||Relay 2-->GPIO21||Relay 3-->GPIO20||Relay 4-->GPIO19|
|Button 1-->GPIO12||Button 2-->GPIO6||Button 3-->GPIO16||Button 4-->GPIO13|
Note: GPIO mode is BCM. The relay is turned on at a high level. A pull-up resistor is connected to the key, and the low level is pressed.
NOT INCLUDED Raspberry Pi A / B.
|Shipping Rate||Ships From||First item||Additional items|
China Post: Registered airmail with tracking number
Shenzhen, GuangDong, China
Ships from China.
Usually ships within 2 days
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