With most of the Arduino and other processor boards are 5V and modern sensors are typically 3.3V, there is a need to convert signals between these voltages. This board from Adafruit is a convenient way to achieve this level shift between devices. It has 8 bi-directional channels. Ideal for serial UART and SPI bus, but not I2C. See more information.
Control 12 channels of PWM, well done! Here is a breakout board that we think you will find useful. It uses the TLC59711 PWM driver chip. This chip can control 12 separate channels of 16-bit PWM output. Designed (and ideal) for precision LED control, this board is not good for driving servos.
The HT16K33 is a neat little chip that has the ability to drive a multiplexed 16x8 matrix (that's 128 individual LEDs). The communication protocol is I2C so it uses only 2 pins, and you can have up to 8 selectable I2C addresses so thats a total of 8 matrices, each one controlling 16x8 LEDs for 1024 total LEDs.
Control 24 channels of PWM, well done! Here is a breakout board that we think you will find useful. It uses the TLC5947 PWM driver chip. This chip can control 24 separate channels of 12-bit PWM output. This is the highest-resolution PWM board we've seen! Designed (and ideal) for precision LED control, this board is not good for driving servos.
A backpack for common character LCD screen allowing control via i2c or SPI reducing the number of connections needed. A great way to add feedback for the user to your project while keeping your circuit and programming simple. Will work with LCD's that are compatible with the HD44780 controller.
Put on your sunglasses before wiring up this LED matrix - 64 eye-blistering RGB LEDs adorn the NeoMatrix for a blast of configurable color. Arranged in an 8x8 matrix, each pixel is individually addressable. Only one microcontroller pin is required to control all the LEDs, and you get 24 bit color for each LED.
This board has a big prototyping area, half is breadboard and half is perfboard so you can wire up DIP chips, sensors, etc. The edges have all the GPIO/I2C/SPI and power pins broken out. The breakout pins are also connected to labeled 3.5mm screw-terminal blocks. There's also a 4-block terminal block for general non-GPIO wiring. There is also an SOIC...
This Adafruit shield makes it easy to use a 16x2 Character LCD. The RGB LCDs we stock in the shop both the RGB negative and RGB positive. Unfortunately, these LCDs do require quite a few digital pins, 6 to control the LCD and then another 3 to control the RGB backlight for a total of 9 pins. That's half of the pins available on a classic Arduino!...
The breakout is built around the MTK3339 chipset, a no-nonsense, high-quality GPS module that can track up to 22 satellites on 66 channels, has an excellent high-sensitivity receiver (-165 dB tracking!), and a built in antenna. It can do up to 10 location updates a second for high speed, high sensitivity logging or tracking. Power usage is incredibly...
Adafruit GPS shield kit. This assembled shield that comes with an Ultimate GPS module. This GPS shield works great with either UNO or Leonardo Arduinos and is designed to log data to an SD card. Or you can leave the SD card out and use the GPS for a geocaching project, or maybe a music player that changes tunes depending on where you are in the city.