16 Relays 2A/24V 8-Layer Stackable HAT for Raspberry Pi [Discontinued] _MAKE_MODULE_WIRELESS 1x Grove -Smart Air Quality

1x Grove -Smart Air Quality Sensor-SGP41

2x LEGO Building Blocks

Shape and size compliant with Raspberry Pi HAT standard

This means you could detect movement coming from a specific direction (for smart security systems) or mount it on your robot for object tracking or superior collision avoidance without the need for lots of separate sensors

Just connect your JustBoom Amp to a set of passive speakers and you can be up and running quickly

16 Relays 2A/24V 8-Layer Stackable HAT for Raspberry Pi [Discontinued] _MAKE_MODULE_WIRELESS 1x Grove -Smart Air QualityThis is a great add on to your Raspberry Pi project when you have to control a large number of loads. Its stackability allows up to 8 layers, adding a maximum of 128 relays to each Raspberry Pi in a compact form factor. Pluggable connectors on the 16 relay card make it user friendly, especially when multiple cards are stacked. The relays feature Normally Open (N. O.) contacts and can switch 24V 2A AC DC. Bicolour LEDs, grouped on one side of the