Gemma may be small, but do not be fooled by its size! It's a tiny sewable microcontroller board, built around the Atmel ATtiny85, a little chip with a lot of power. We wanted to design a little sister to the Flora, something that was small enough to fit into any project, and low cost enough to use without hesitation. Perfect for when you don't want to give up your Flora for a small project
This tutorial demonstrates how to connect the Adafruit MAX31855 Thermocouple Amplifier breakout board to the Electric Imp using SPI, as well as how to set up a Xively developer account and a Twitter application. You will log and graph temperature data on Xively, and tweet it to your own Twitter account.
Trinket may be small, but do not be fooled by its size! It's a tiny microcontroller board, built around the Atmel ATtiny85, a little chip with a lot of power. We wanted to design a microcontroller board that was small enough to fit into any project, and low cost enough to use without hesitation. Perfect for when you don't want to give up your expensive dev-board and you aren't willing to take apart the project you worked so hard to design. It's our lowest-cost Arduino-IDE programmable board!
The very word "servo" implies feedback-based control. But for most RC servos, that feedback signal is not available outside the servo case. So when controlling them from a microcontroller, you never really know if the servo is doing what you tell it to do. These feedback servos have an extra wire for the feedback signal. This lets you monitor the servo motion to verify that it is working as expected. It also lets you use the servo as an input device.
These big, bright displays measures 1.27" or 1.5" diagonal and have 128x96 or 128x128 RGB pixels. The OLED display technology gives you vivid, high contrast images and does not require a backlight. With16-bit resolution for each pixel, you can display a wide range of colors. The SSD1351 driver chip has a 4-wire SPI interface. We also include an on-board boost converter and built-in level shifting for compatibility with both 3.3v and 5v microcontrollers. A micro SD card holder lets you store bitmaps and other data. Our library includes example code to show you how!
Introducing the MENTA, a portable minty Arduino-compatible project that fits into a common mint tin. We took our super popular Boarduino series, and wrapped it with a prototyping area into a rounded PCB that slots directly into an Altoids-sized metal tin. We included everything you expect to jump-start your project: a DC power adapter with polarity protection, beefy 1 Amp 5V regulator and 250mA 3.3V regulator for 3.3V devices, green power LED, red blinky LED, ISP-6 standard reprogramming header, FTDI interface plug to connect an FTDI Friend or cable and female header so you can plug standard Arduino-compatible shields in. There are four mounting holes if you want to attach it permanently to a box or plate, and a massive prototyping area so you can have the finished project all fit together in a protective box.
Add Internet to your next project with an adorable, bite-sized WiFi microcontroller, at a price you like! The ESP8266 processor from Espressif is an 80 MHz microcontroller with a full WiFi front-end (both as client and access point) and TCP/IP stack with DNS support as well. While this chip has been very popular, its also been very difficult to use. Most of the low cost modules are not breadboard friendly, don't have an onboard 250mA 3.3V regulator or level shifting, and aren't CE or FCC emitter certified....UNTIL NOW!
The proto-screwshield is the ultimate breakout board for an Arduino. It combines a prototyping shield with a full set of 3.5mm screw terminal blocks. The protoshield part lets you build custom circuitry and then you can easily & securely connect wires and sensors to the terminal blocks. Great for panel mounts, buttons, sensors, enclosures etc.
These LED panels take care of all the work of making a big matrix display. Each panel has six 8x8 red matrix modules, for a 16x24 matrix. The panel has a HT1632C chip on the back with does all the multiplexing work for you and has a 3-pin SPI-like serial interface to talk to it and set LEDs on or off. There are a few extras as well, such as being able to change the brightness of the entire display, or blink the entire display at 1 Hz.
If you have a project with any audio, video, graphics, data logging, etc in it, you'll find that having a removable storage option is essential. Most microcontrollers have extremely limited built-in storage. For example, even the Arduino Mega chip (the Atmega2560) has a mere 4Kbytes of EEPROM storage. There's more flash (256K) but you cant write to it as easily and you have to be careful if you want to store information in flash that you don't overwrite the program itself!
This breakout board is the ultimate companion for the VLSI VS1053B DSP codec chip. The VS1053 can decode a wide variety of audio formats such as MP3, AAC, Ogg Vorbis, WMA, MIDI, FLAC, WAV (PCM and ADPCM). It can also be used to record audio in both PCM (WAV) and compressed Ogg Vorbis. You can do all sorts of stuff with the audio as well such as adjusting bass, treble, and volume digitally. There are also 8 GPIO pins that can be used for lighting up small LEDs or reading buttons.