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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 Bluefruit LE SPI Friend - Bluetooth Low Energy (BLE)
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The Adafruit Bluefruit LE SPI Friend adds Bluetooth Low Energy connectivity to any microcontroller with just 4–5 GPIO pins. Using SPI instead of UART means no baud rate configuration or flow control to worry about — connect via MISO, MOSI, SCK, CS, and an interrupt pin, and you're ready to go. T...
Adafruit NeoPixel Digital RGBW LED Strip - White PCB 30 LED/m
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An RGBW NeoPixel strip with 30 individually addressable LEDs per metre on a flexible white PCB. Each pixel contains four LED elements — red, green, blue, and a dedicated white — providing 32-bit colour control and superior white output compared to RGB-only strips. Also available with a black PCB ...
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 Feather RP2040 with DVI Output Port - Works with HDMI
The Feather RP2040 with DVI Output lets you drive an HDMI monitor or television directly from a microcontroller. The on-board HDMI connector outputs digital video (DVI) at 640×480 or 800×480 resolution using the RP2040's PIO peripherals, with an internal framebuffer of 320×240 or 400×240 pixels t...
Adafruit 15x7 CharliePlex LED Matrix Display FeatherWing - Red
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The Adafruit 15×7 CharliePlex LED Matrix FeatherWing in Red adds a bright, compact 105-LED grid to any Feather board. The onboard IS31FL3731 driver handles all the charlieplexing over I2C, with 8-bit (256-level) PWM dimming on every individual LED — no complex wiring needed. The driver chip incl...
Mongoose OS Google IoT Core Pack w/ Adafruit Feather HUZZAH32
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The Mongoose OS Google IoT Core Pack is a complete starter kit for building IoT projects with Google Cloud, built around the Adafruit Feather HUZZAH32 (ESP32). Developed in collaboration with Google and Mongoose OS, this kit includes a pre-soldered ESP32 Feather board along with sensors, actuator...
Adafruit PyRuler - Engineer Reference Ruler with CircuitPython
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The Adafruit PyRuler is a PCB reference ruler and a fully functional CircuitPython microcontroller in one. Measuring approximately 25 × 150 mm (1" × 6"), this gold-plated FR4 ruler features common SMD component package outlines, a font size guide, trace-width diagram, and AWG wire gauge drill hol...
Adafruit 2.9 Red/Black/White eInk Display Breakout - THINK INK
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Add a large, vibrant tri-colour eInk display to your microcontroller project with this 2.9" breakout board. The panel displays red, black, and white pixels at 296×128 resolution that remain visible even with power completely disconnected — just like printed paper, but with the added impact of col...
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 Bluefruit LE UART Friend - Bluetooth Low Energy (BLE)
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The Adafruit Bluefruit LE UART Friend adds Bluetooth Low Energy connectivity to any microcontroller or computer with a hardware or software serial port. With hardware flow control built in, you won't lose data during transmission. Connect via UART TX/RX pins, or use a standard FTDI cable for debu...
Adafruit Terminal PiCowbell for Pico with Pre-Soldered Sockets
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The Adafruit Terminal PiCowbell with Pre-Soldered Sockets gives your Raspberry Pi Pico or Pico W instant plug-and-play access to every GPIO pin via screw terminal blocks. Simply plug in your Pico and connect 18–26 AWG solid or stranded core wires to any of the 40 terminal blocks — one for each pi...
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 PiCowbell Camera Breakout - Autofocus 120 Degree Lens
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The Adafruit PiCowbell OV5640 Camera Breakout with Autofocus adds a 5-megapixel camera with a 120-degree wide-angle lens and autofocus motor to your Raspberry Pi Pico or Pico W. Capture raw RGB images for analysis or use the OV5640's built-in JPEG encoding to save photos to a microSD card or uplo...
Adafruit PiCowbell Camera Breakout - 120 Degree Low Distortion
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The Adafruit PiCowbell OV5640 Camera Breakout adds a 5-megapixel camera with a 120-degree low-distortion wide-angle lens to your Raspberry Pi Pico or Pico W. Capture raw RGB images for analysis or use the OV5640's built-in JPEG encoding to save photos to a microSD card or upload them to the cloud...
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 0.56 4-Digit 7-Segment Display w/I2C Backpack - White
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The Adafruit 0.56" 4-Digit 7-Segment Display with I2C Backpack in white 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 drive...
Adafruit ItsyBitsy M0 Express - for CircuitPython Arduino IDE
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The Adafruit ItsyBitsy M0 Express is a compact yet powerful microcontroller board built on the ATSAMD21 Cortex M0+ running at 48 MHz. At just 1.4" × 0.7", it delivers the same capability as the Metro M0 or Feather M0 Express in a fraction of the size — perfect for shrinking prototypes into final ...
Adafruit 3.4in Square RGB-666 TTL TFT Display with Touchscreen
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This square TFT module is made for advanced display projects that need a high-resolution, compact screen. It has a 3.4 inch IPS panel with 480x480 full-colour pixels, giving a crisp square format with good colour visibility off-axis.The display uses an ST7701S driver with SPI for configuration an...
Adafruit bq25185 USB / DC / Solar Charger with 3.3V Buck Board
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The Adafruit bq25185 is an all-in-one charging and power supply board that supports USB, DC, and solar charging with an integrated 3.3V buck converter. It is an excellent upgrade from MCP73833 or MCP73831-based chargers, combining power path management and regulated output in a single board. Con...
Adafruit Half-size Perma-Proto Raspberry Pi Breadboard PCB Kit
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The Adafruit Half-size Perma-Proto Raspberry Pi Breadboard PCB Kit combines a prototyping board with a built-in Pi Cobbler breakout. Solder the included 2×13 box header onto the board, connect a 26-pin GPIO ribbon cable (not included), and you get labelled GPIO breakouts alongside a generous half...
