Circuitry & IOT

SKU: LB-LR0249 | Brand: Little Bird

Note: These breadboards have a badly laid out silkscreen. They work perfectly well as breadboards, but do not rely on the printed reference markers. An 830-point solderless breadboard (MB-102) at a discounted price...

SKU: SF-DEV-11061 | Brand: SparkFun

The Arduino Mega 2560 R3 is a microcontroller board based on the ATmega2560, offering significantly more I/O than standard Arduino boards. With 54 digital I/O pins, 16 analog inputs, and 4 hardware serial ports, it's ...

SKU: KI-5313 | Brand: Kitronik

The Kitronik Inventor's Kit for Arduino is a great way to get started with programming and hardware interaction with the Arduino. This Inventor's Kit contains everything you need to complete 10 experiments includin...

SKU: EF-EF08296 | Brand: ElecFreaks

SKU: DF-DFR0140 | Brand: DFRobot

This is a very simple board that takes a 6-12V input voltage and outputs a selectable 5V or 3.3V regulated voltage. All headers are 0.1" pitch for simple insertion into a breadboard. It can be either powered from 6-12...

SKU: SF-PRT-12795 | Brand: SparkFun

These are 6" long jumper wires with male connectors on both ends. Use these to jumper from any female header on any board, to any other female header. Combine these with our female to female jumpers to create a mal...

SKU: LB-00191-20 | Brand: Little Bird

A classroom-ready bulk pack of 20 BBC micro:bit v2.2 boards. Each micro:bit features a built-in speaker, microphone, touch sensor, accelerometer, compass, Bluetooth, and a 5×5 LED matrix — everything students need to ...

SKU: AF-1536 | Brand: Adafruit

A breadboard-friendly active buzzer module that produces a loud 2 kHz tone when you apply 3–5V. Unlike a passive piezo element, this buzzer has built-in driver circuitry — no oscillating signal needed, just apply powe...

SKU: EF-EF08297 | Brand: ElecFreaks

The Classroom Smart Home Kit includes components such as an IOT:bit expansion board, crash sensor, 180-degree servo, rainbow LED, noise sensor, light sensor, and OLED display. These components enable a wealth of funct...

SKU: AF-5323 | Brand: Adafruit

The Adafruit ESP32-S3 Feather with STEMMA QT brings the dual-core ESP32-S3 to the Feather ecosystem with Wi-Fi, Bluetooth LE, and native USB. This version comes with 8 MB flash, 512 KB SRAM, and no PSRAM — suitable fo...

SKU: WS-14718 | Brand: Waveshare

A 1.8" colour display module designed for the BBC micro:bit, featuring 160 × 128 resolution and 65K colour support. It plugs directly into the micro:bit edge connector — no soldering required. The module includes onb...

SKU: LB-LR0298 | Brand: Little Bird

This stand alone DHT11 can read the temperature and humidity and send the information over a one wire, simplex serial bus. Arduino.cc provides a DHT11 library to aid in communicating with this module.**DHT11 Temper...

SKU: SF-PRT-10007 | Brand: SparkFun

A set of stackable headers designed for the Arduino Uno, Arduino Pro, and other boards using the classic (pre-R3) pin layout. These female headers sit tall enough to clear the USB-B connector, making them ideal for st...

SKU: AF-4900 | Brand: Adafruit

The Adafruit QT Py RP2040 puts the popular Raspberry Pi RP2040 chip into the tiny QT Py form factor. With dual-core ARM Cortex-M0+ running at 125 MHz, 264 KB SRAM, 8 MB flash, native USB, and a STEMMA QT connector, it...

SKU: PL-1902 | Brand: Pololu

These 1×3-pin crimp connector housings let you quickly build custom cables that mate with standard 0.1" (2.54mm) spaced connectors. Pair them with pre-crimped terminal wires or crimp pins to create reliable, removable...

SKU: SF-PRT-09547 | Brand: SparkFun

A 2×AA battery holder with a sliding cover secured by a Phillips head screw and a built-in ON/OFF switch for convenient power control. The 150mm tinned leads make it easy to solder into your projects. Key Features ...

SKU: AF-356 | Brand: Adafruit

These are our favorite trim pots, perfect for breadboarding and prototyping. They have a long grippy adjustment knob and with 0.1" spacing, they plug into breadboards or perfboards with ease. This is the same pot t...

SKU: SF-WRL-20168 | Brand: SparkFun

The SparkFun ESP32 WROOM Thing Plus is a Feather-compatible development board built around Espressif's ESP32-WROOM module, featuring USB-C, integrated Wi-Fi and Bluetooth, a microSD card slot, LiPo battery management ...

SKU: EF-EF08313 | Brand: ElecFreaks

The ELECFREAKS Smart Greenhouse Kit is a hands-on STEM kit that simulates smart agriculture using a micro:bit and IoT expansion board. Students plant seeds in the built-in growth groove, monitor conditions with integr...

SKU: LB-LS0824-V2 | Brand: Little Bird

This IO expansion board adapter for the micro:bit V2 breaks out all pins to accessible connectors, making it easy to connect sensors, modules, servos, and other peripherals to your micro:bit projects without alligator...