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Gravity I2C OLED-2864 Display
Thermocouple Amplifier MAX31855 breakout board (MAX6675 upgrade)
Thermocouple Type-K Glass Braid Insulated Stainless Steel Tip
Circuit Playground Express [Developer Edition]
Code.org Circuit Playground Educators' Pack
Adafruit Feather nRF52 Bluefruit LE [nRF52832]
Adafruit SPI Non-Volatile FRAM Breakout - 64Kbit / 8KByte
Adafruit Ultimate GPS Breakout - 66 channel w/10 Hz updates [Version 3]
RGB backlight positive LCD 20x4 + extras [black on RGB]
RGB backlight negative LCD 20x4 + extras [RGB on black]
Adafruit PCF8523 Real Time Clock Assembled Breakout Board
MAX7219CNG LED Matrix/Digit Display Driver [MAX7219]
Adafruit Si7021 Temperature Humidity Sensor Breakout Board
RGB backlight negative LCD 16x2 + extras [RGB on black]
RGB backlight positive LCD 16x2 + extras [black on RGB]
TTL Serial JPEG Camera with NTSC Video
Super-bright 5mm IR LED [940nm]
Mini Remote Control
DHT11 basic temperature-humidity sensor + extras
PIR (motion) sensor
Gravity I2C OLED-2864 Display
The Gravity I²C OLED-2864 is a 0.96″ blue OLED display module driven by the SSD1306 controller. It communicates via I²C and refreshes at up to 60 Hz, making it ideal for real-time data readouts on Arduino and other microcontroller projects. The module uses the Gravity I²C interface for plug-and-...
Thermocouple Amplifier MAX31855 breakout board (MAX6675 upgrade)
The MAX31855 Thermocouple Amplifier Breakout converts K-type thermocouple readings into digital data via SPI, handling cold-junction compensation automatically. It measures temperatures from −200°C to +1350°C in 0.25°C increments, making it suitable for a wide range of temperature monitoring appl...
Thermocouple Type-K Glass Braid Insulated Stainless Steel Tip
Thermocouples are best used for measuring temperatures that can go above 100°C. This is a bare wires stainless-steel tip probe which can measure air or surface temperatures. Most inexpensive thermocouples have a vinyl covering which can melt at around 200°C, this one uses a fiberglass braid so...
Circuit Playground Express [Developer Edition]
The Circuit Playground Express is an all-in-one development board packed with sensors, LEDs, and a speaker — all on a round, beginner-friendly PCB with alligator-clip pads. No soldering required. It supports four programming environments: Microsoft MakeCode (block/JavaScript), CircuitPython, Ardu...
Code.org Circuit Playground Educators' Pack
For many years, instructors and teachers have asked us to come up with a better way to teach programming and electronics. We have worked on Circuit Playground Express for over a year to come up with a board that is powerful, beautiful, fun, and perfect for teaching Code.org CS Discoveries Circ...
Adafruit Feather nRF52 Bluefruit LE [nRF52832]
The Feather nRF52 Bluefruit LE is an all-in-one Bluetooth Low Energy development board built around the Nordic nRF52832. Unlike earlier Bluefruit Feathers that used a separate helper chip, the nRF52832 runs your application code and handles BLE directly — resulting in lower power consumption, low...
Adafruit SPI Non-Volatile FRAM Breakout - 64Kbit / 8KByte
The Adafruit SPI Non-Volatile FRAM Breakout provides 64 Kbit (8 KBytes) of ferroelectric RAM (FRAM) storage over SPI. FRAM combines the non-volatile retention of flash with the instant read/write speed of SRAM — no page writes, no block erasing, and each byte can be written 10 trillion times with...
Adafruit Ultimate GPS Breakout - 66 channel w/10 Hz updates [Version 3]
The Adafruit Ultimate GPS Breakout (Version 3) is a high-performance GPS module built around the MTK3339 chipset. With 66 channels, -165 dBm tracking sensitivity, and up to 10 Hz position updates, it delivers accurate and responsive location data for a wide range of projects. Version 3 introduce...
RGB backlight positive LCD 20x4 + extras [black on RGB]
This 20×4 character LCD features black text on a full-colour RGB backlight that you can set to any colour — red, green, blue, purple, teal, white, and everything in between. It's the most daylight-readable character LCD available and looks strikingly good at any colour or brightness level. A dro...
RGB backlight negative LCD 20x4 + extras [RGB on black]
This is a fancy upgrade to standard 20x4 LCDs, instead of just having blue and white, or red and black, this LCD has full color RGB characters on a dark/black background! That means you can change the character display colors to anything you want - red, green, blue, pink, white, purple yellow, te...
Adafruit PCF8523 Real Time Clock Assembled Breakout Board
Keep track of time even when your project loses power or gets reprogrammed. The PCF8523 Real Time Clock breakout is a battery-backed RTC that communicates over I2C and works with both 3.3 V and 5 V power and logic. Perfect for datalogging, clock building, time stamping, timers, and alarms. Works...
MAX7219CNG LED Matrix/Digit Display Driver [MAX7219]
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 of LEDs, you'll want to use multiplexing, a technique that lets you control 64 LEDs (say) with only 16 pins (8x8). The annoying thing about 'plexing ...
Adafruit Si7021 Temperature Humidity Sensor Breakout Board
The Adafruit Si7021 is a temperature and humidity sensor from Silicon Labs with a PTFE filter for protection against dust and contaminants. It provides ±3% relative humidity accuracy over 0–80% RH and ±0.4 °C temperature accuracy from −10 to +85 °C, all communicated over a simple I2C interface. ...
RGB backlight negative LCD 16x2 + extras [RGB on black]
This is a fancy upgrade to standard 16x2 LCDs, instead of just having blue and white, or red and black, this LCD has full color RGB characters on a dark/black background! That means you can change the character display colors to anything you want - red, green, blue, pink, white, purple yellow,...
RGB backlight positive LCD 16x2 + extras [black on RGB]
A 16 × 2 character LCD with a full RGB backlight, displaying black text on a customisable colour background. Set the backlight to any colour — red, green, blue, purple, teal, white, or anything in between — by controlling three independent LED channels. With excellent daylight readability and vib...
TTL Serial JPEG Camera with NTSC Video
This camera module can be a pretty neat project addition. It was designed to be used in security systems and does two main things - it outputs NTSC video and can take snapshots of that video (in color) and transmit them over the TTL serial link. You can snap pictures at 640x480, 320x240 or 160...
Super-bright 5mm IR LED [940nm]
Infrared LEDs are used for remote controls (they're the little LED in the part you point at your TV) and 'night-vision' cameras, and these little blue guys are high powered ones! They are 940nm wavelength, which is what nearly all devices listen to. They're 20 degree beamwidth, and work gre...
Mini Remote Control
A compact 21-button infrared remote control, ideal for controlling robots and Arduino projects from across the room. The layout includes directional buttons and number entry buttons, making it versatile for navigation and data input. The remote uses NEC encoding and sends data codes 0 through 26...
DHT11 basic temperature-humidity sensor + extras
The DHT11 is a basic, ultra low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin (no analog input pins needed). Its fairly simple to use, but requires careful timing t...
PIR (motion) sensor
PIR sensors are used to detect motion from pets/humanoids from about 20 feet away (possibly works on zombies, not guaranteed). This one has an adjustable delay before firing (approx 2-4 seconds), adjustable sensitivity and we include a 1 foot (30 cm) cable with a socket so you can easily repos...