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Here are popular Adafruit options across kits, add-ons, sensors, storage, and power—great for microcontroller builds:
Kits & project add-ons
- Adafruit Soil Sensor Kit for micro:bit v2 ($59.68) — classroom-friendly kit for micro:bit v2.2 soil monitoring + learning projects.
- Adafruit FeatherWing 128x64 OLED Add-on ($38.07) — assembled 128×64 monochrome OLED FeatherWing with 3 buttons.
- Adafruit USB Host FeatherWing with MAX3421E ($35.69) — adds USB host (keyboards, mice, USB drives) to Feather projects.
Cameras
- OV5640 Camera Breakout - 72 Degree Lens with Autofocus ($23.75) — 5MP OV5640, 72° lens, autofocus.
- OV5640 Camera Breakout with 120° Low-Distortion Lens ($29.84) — 5MP OV5640 with 120° wide-angle low-distortion lens.
Sensors (I2C/QT-friendly options)
- Adafruit TMP119 ±0.03°C I2C Temperature Sensor ($35.69) — ultra high-precision ±0.03°C temperature sensing over I2C.
- MAX44009 Wide-Range Lux Light Sensor Breakout ($29.84) — measures real lux up to 188,000 lux.
- VCNL4020 Proximity & Light Sensor Breakout - STEMMA QT/Qwiic ($14.20) — combined proximity + ambient light over I2C, with STEMMA QT/Qwiic.
- Adafruit QMC5883P Triple-Axis Magnetometer ($14.20) — 3-axis magnetometer for compass/orientation.
Power monitoring & power-path protection
- Adafruit INA228 85V 20-bit I2C Power Monitor Breakout ($35.69) — 85V, 20-bit current/voltage/power monitoring (high- or low-side).
- Adafruit LM73100 23V 5A Ideal Diode Breakout ($11.82) — 3–23V power-path “ideal diode” up to 5A with low loss.
Flash memory breakouts (for logging/files/firmware assets)
- SPI Flash Breakout - W25Q16 16Mbit / 2MB ($7.04) — compact 2MB SPI flash storage.
- QSPI DIP Breakout Board - W25Q16 16Mbit / 2MB ($5.97) — easy prototyping 2MB QSPI flash (8-SOIC to DIP).
- Adafruit QSPI DIP Breakout with W25Q64 Flash - 64Mbit / 8MB ($6.56) — prototyping-friendly 8MB QSPI flash.
Lighting
- Adafruit DotStar Digital LED Strip - Black 144 LED/m - 0.5 Meter [BLACK] ($55.64) — DotStar (2-wire SPI) strip, 144 LED/m, 0.5m length for fast animations.
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Adafruit 3.52" 340x180 Quad-Color eInk / ePaper - Bare Display
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This 3.52" quad-colour eInk display delivers four distinct ink colours — red, black, yellow, and white — at 340×180 pixel resolution. The display retains its image with no power draw, offering the paper-like readability of standard eInk with an extra colour channel for richer, more informative gr...
Adafruit HTS221 - Temperature & Humidity Sensor Breakout Board
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The Adafruit HTS221 is an affordable I²C/SPI temperature and humidity sensor breakout board from ST. It measures relative humidity from 0–100% RH with 3.5% accuracy (in the 20–80% range) and temperature from -40 to 120°C with ±0.5°C accuracy (between 15 and 40°C). An excellent choice for everyday...
Adafruit NeoSlider I2C QT Slide Potentiometer with 4 NeoPixels
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Add a smooth slide control to any I2C project with the Adafruit NeoSlider — a 75 mm linear slide potentiometer with four RGB NeoPixel underlights, all communicating over I2C via the onboard seesaw microcontroller. No analog pins needed on your main board. Thanks to the STEMMA QT / Qwiic connecto...
Adafruit Mini 0.7 8x8 LED Matrix w/I2C Backpack - Yellow-Green
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The Adafruit Mini 0.7" 8×8 LED Matrix with I2C Backpack makes it easy to add a bright yellow-green dot-matrix display to any project. The I2C backpack handles all the multiplexing, so you only need two data pins (SDA and SCL) plus power to control all 64 LEDs — no complex wiring or external drive...
Adafruit QT Py S3 with 2MB PSRAM WiFi Dev Board with STEMMA QT
The Adafruit QT Py ESP32-S3 with 2 MB PSRAM is the memory-upgraded version of the QT Py ESP32-S3. With 4 MB flash, 512 KB SRAM, and 2 MB PSRAM, it can handle large data buffers — perfect for image processing, large JSON parsing, or memory-intensive CircuitPython projects that the standard version...
Adafruit PC Joystick to seesaw I2C Adapter - STEMMA QT / Qwiic
Bring your classic PC joystick back to life. This adapter board takes any legacy DE-15 game port joystick and converts its analogue X/Y axes and two buttons to I2C via an onboard ATtiny816 running the Adafruit seesaw firmware. No analogue inputs needed on your microcontroller — just plug in a STE...
Adafruit 1.2 4-Digit 7-Segment Display w/I2C Backpack - Yellow
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The Adafruit 1.2" 4-Digit 7-Segment Display with I2C Backpack in yellow makes it easy to add a large, bright numeric display to any microcontroller project. The backpack handles all LED multiplexing and driving via I2C, so you only need two data pins to control a full 4-digit display. The HT16K3...
Adafruit Pixel Trinkey - USB Key for NeoPixel / DotStar Driving
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The Adafruit Pixel Trinkey is a tiny USB microcontroller board purpose-built for driving NeoPixel (WS2812, SK6812) and DotStar (APA102) addressable LEDs directly from your computer. It plugs into any USB-A port and provides screw terminal connections for solder-free wiring to your LED strips, rin...
Adafruit 0.56 4-Digit 7-Segment Display w/I2C Backpack - Yellow
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The Adafruit 0.56" 4-Digit 7-Segment Display with I2C Backpack in yellow makes it easy to add a bright numeric display to any microcontroller project. The backpack handles all LED multiplexing and driving via I2C, so you only need two data pins to control a full 4-digit display. The HT16K33 driv...
Adafruit 16-Channel PWM / Servo HAT for Raspberry Pi - Mini Kit
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The Adafruit 16-Channel PWM/Servo HAT adds precision servo and PWM control to your Raspberry Pi. Using the PCA9685 I2C PWM controller, it drives up to 16 servos or PWM outputs simultaneously with 12-bit resolution — completely free-running with no Pi processing overhead. Up to 62 HATs can be sta...
Adafruit Feather RP2040 Adalogger - 8MB Flash with microSD Card
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The Feather RP2040 Adalogger combines the RP2040 dual-core processor with a MicroSD card holder for data logging and file storage. It features 8 MB SPI flash, 264 KB SRAM, USB Type C, STEMMA QT connector, and built-in LiPo battery charging — ready for portable data recording projects with Arduino...
Adafruit ESP32-S3 TFT Feather - 4MB Flash, 2MB PSRAM, STEMMA QT
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The Adafruit ESP32-S3 TFT Feather features a built-in 1.14" IPS colour TFT display (240×135 pixels, ST7789) on the front of the board. Combined with the dual-core ESP32-S3's native USB, Wi-Fi, Bluetooth LE, 4 MB flash, and 2 MB PSRAM, it provides a complete visual IoT platform in the Feather form...
Adafruit IoT Button with NeoPixel BFF Add-On for QT Py and Xiao
The Adafruit IoT Button with NeoPixel BFF adds a chunky 12 mm tactile button and an RGB NeoPixel to any QT Py or Xiao development board. It's a quick way to build simple IoT button projects with visual feedback — press the button to trigger an action, and use the NeoPixel to display status. Desi...
Adafruit VL53L4CX Time of Flight Distance Sensor - ~1 to 6000mm
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The Adafruit VL53L4CX is the longest-range Time-of-Flight (ToF) distance sensor in ST's VL5 series, measuring from approximately 1 mm up to 6000 mm (6 metres). It uses an invisible laser to precisely time how long light takes to bounce back, delivering accurate distance readings without the linea...
Adafruit MACROPAD RP2040 Bare Bones - 3x4 Keys + Encoder + OLED
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The Adafruit MACROPAD RP2040 Bare Bones is a programmable 3×4 macro keyboard powered by the Raspberry Pi RP2040 microcontroller. It comes with a 128×64 OLED display, rotary encoder with push-button, speaker, and 12 NeoPixel LEDs — everything except the key switches and keycaps, so you can customi...
Adafruit BME280 I2C or SPI Temperature Humidity Pressure Sensor
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Measure indoor environmental conditions with Bosch’s BME280 sensor on an easy-to-use Adafruit breakout. It combines temperature, barometric pressure and humidity sensing in a compact board that suits weather stations, room monitoring, data logging and altitude-aware projects.The sensor can commun...
Adafruit PiCowBell Camera Breakout - Wide Angle 160 Degree Lens
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The Adafruit PiCowbell OV5640 Camera Breakout with 160° Wide-Angle Lens adds a 5-megapixel camera with an ultra-wide 160-degree field of view to your Raspberry Pi Pico or Pico W. The widest lens option in the PiCowbell camera range, it captures the maximum scene coverage in each frame — ideal for...
Snap-on Enclosure for Adafruit USB / DC / Solar Lithium Charger
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A snap-on enclosure designed specifically for the Adafruit Universal USB / DC / Solar Lithium Ion/Polymer Charger (bq24074). This 3D-printed case protects the charger board while providing full access to all ports and connections. Key Features Tool-Free Assembly – Snap-fit design requires no s...
Adafruit INA260 High or Low Side Voltage, Current, Power Sensor
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The Adafruit INA260 is a precision DC power sensor that measures current, voltage, and power on either the high or low side of your circuit. With an integrated 2 mΩ (0.002Ω) 0.1% shunt resistor and 16-bit ADC, it handles up to +36V DC at 15A continuous — delivering better than 1% accuracy over I2...
Adafruit Matrix Portal - CircuitPython Powered Internet Display
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The Adafruit Matrix Portal is a plug-and-play controller for HUB-75 RGB LED matrix panels. Powered by an ATSAMD51 (Cortex M4) with an ESP32 WiFi coprocessor, it plugs directly into the back of any compatible matrix — no soldering or wiring required. Just attach power and start coding in CircuitPy...
