Adafruit

When you need some help driving a lot of LEDs, the MAX7219 is the best friend you could hope for. Many of us know that if you want to control a lot...

Add another 8 pins to your microcontroller using an MCP23008 port expander. The MCP23008 uses two i2c pins (these can be shared with other i2c dev...

Add another 16 pins to your microcontroller using an MCP23017 port expander. The MCP23017 uses two i2c pins (these can be shared with other i2c dev...

Need to add analog inputs? This chip will add 8 channels of 10-bit analog input to your microcontroller or microcomputer project. It's super easy ...

Your microcontroller probably has an ADC (analog -> digital converter) but does it have a DAC (digital -> analog converter)??? Now it can! Th...

Your microcontroller probably has an ADC (analog -> digital converter) but does it have a DAC (digital -> analog converter)??? Now it can! T...

This I2C digital temperature sensor is one of the most accurate/precise we've ever seen, with a typical accuracy of ±0.25°C over the sensor's -40°...

This I2C digital temperature sensor is one of the most accurate/precise we've ever seen, with a typical accuracy of ±0.25°C over the sensor's -40°...

This RF adapter bit is great for anyone doing RF work. If your receiver/transmitter/transceiver has an MCX connector but you really want to tie it ...

This RF adapter bit is great for anyone doing RF work. If your receiver/transmitter/transceiver has an MCX connector but you really want to tie it...

Click click click - oh pardon me I was having fun clicking away on my mechanical decade counters. Each order comes with five individual counters. T...

Click click click - oh pardon me I was having fun clicking away on my mechanical decade counters. Each order comes with five individual counters. T...

Here at the Adafruit factory, we're used to working within the confines of electrical resistance , and we never tire of a good "ΩMG!" or "Ω sweet ...

Bring a little bit of Times Square into your home with this 16 x 32 RGB LED matrix panel. These panels are normally used to make video walls, here...

Bring a little bit of Times Square into your home with this 16 x 32 RGB LED matrix panel. These panels are normally used to make video walls, here ...

For storing small parts (especially SMT/SMD components), these little modular boxes are ideal. They have individual clear pop-open covers so you c...

Add a cool touch interface with your project with this Panel Mount USB Trackpad with Three Buttons that is super easy to use and interface with. Si...

Solenoids are basically electromagnets: they are made of a big coil of copper wire with an armature (a slug of metal) in the middle. When the coil...

Turn any surface/wall/table etc into a speaker with a surface transducer. This type of speaker does not have a moving cone like most speakers you'...

The "poor man's" accelerometer/motion sensor! These spring-vibration switches are medium sensitivity non-directional vibration induced trigger swi...

This is an extra large proto-shield, specifically designed for the Mega! It comes with PCB, two buttons and a full set of stacking headers. You can...

This cyber-tronic looking sensor hides a secret behind it's glimmering eye. Unlike most temperature sensors, this sensor measures infrared light em...

This cyber-tronic looking sensor hides a secret behind its glimmering eye. Unlike most temperature sensors, this sensor measures infrared light emi...