Gravity: 4 Channel Relay Shield for Arduino USB Style_No USB It's super bright and designed

It's super bright and designed for viewing from distances up to 23 feet (7 meters) away

Slanted metal slug for directional locking

and an ATMega328

We've also changed the default protocol to be I2C instead of SPI

Ideal for checking unmarked SMD resistor and capacitor values

Gravity: 4 Channel Relay Shield for Arduino USB Style_No USB It's super bright and designedThis Relay Shield for Arduino acts like a switch. It is commonly used to control anything over 5V such as lamps, water pumps and garage doors. One of the most interesting projects for your boards is perhaps being able to control High power devices like Lamps, water pumps, garage doors and so on. But interfacing with high power is quite a dangerous task when building the circuitry. Relays allow for interfacing an external electrical circuit like a