Pulse Sensor $24.95 Pulse Sensor is a plug-and-play heart-rate sensor for Arduino. Heart rate data can be really useful whether you're designing an exercise routine, studying your activity or anxiety levels or just want your shirt to blink with your heart beat. The problem... Add to Cart
Arduino Compatible Digital and Analog Microphone/Sound Sensor Module (LM386) Arduino $2.95 This is a digital microphone for use with the various Arduino boards. It has a digital and/or analog output and is based on the LM386 amplifier for which there are extensive tutorials on-line. The sensor has 4 connections GND, Vcc, Digital Out, and... Add to Cart
Arduino Compatible Digital Temperature Humidity Sensor Module (DHT11) Arduino $3.95 This is a digital temperature and humidity sensor module that works with all of the Arduino micro-controllers. Because it is a digital sensor it only necessitates 3 connections, Vcc, GND, and a digital pin for data output. With this sensor you get two... Add to Cart
1-Channel Relay Module for Arduino & Raspberry Pi (Keyes) $3.45 Operating Voltage: 5V With LED indicates relay status Control terminal, low level pull, high level relay release Great for DIY project Add to Cart
Arduino Compatible Ultrasonic Distance Measuring Sensor Module (HY-SRF05) $3.95 This is an Arduino Compatible Ultrasonic sensor, it can be used to measure the distance from the sensor to other objects around it. These types of sensors are used on robots for collision avoidance and guidance or as trip sensors for alarm systems or... Add to Cart
ESP8266 ESP-12E V1.0 Wifi CP2102 IoT Lua 267 for NodeMCU Arduino $7.95 Product Description The NodeMcu is an open-source development kit based on the popular chip ESP8266 (ESP-12E), using the Lua programming language, a development environment for applications that provide fast Wi-Fi connectivity. The ESP8266 is a... Add to Cart
Compatible LCD Display 2.5″ (LCD 1602) (I2C communication) $6.95 This is a very popular LCD for the Arduino or Freeduino board. It includes a 2×16 LCD display which is backlit in blue. It uses the I2C communications protocol so it is compatible with any Arduino or Raspberry Pi! Key Features: Supports I2C... Add to Cart
4-Channel Relay Module – 5V $5.95 This is a 5V 4-Channel Relay interface board. Be able to control various appliances, and other equipment with large currents. It can be controlled directly by Micro-controller (Raspberry Pi, Arduino, etc.). Features 5V 4-Channel Relay interface... Add to Cart
Octopus Temperature Sensor Brick TMP36 Analog for Micro:bit ElecFreaks $2.95 Octopus TMP36 Temperature Sensor Brick for Arduino and micro:bit is a temperature sensor with low voltage and accurate celsius read. It can provide voltage output,which forms a linear relationship with celsius temperature. TMP36 do not need any external... Add to Cart
Octopus Linear Slider Potentiometer Brick ElecFreaks $4.75 OCTOPUS Potentiometer is a simple linear sliding potentiometer electronic building block module which can be used as a resistor divider output, HID control panel, or in the electronic building block kit. News: All of the Octopus bricks support Scratch... Add to Cart
Octopus Digital Blue Push Button Brick ElecFreaks $1.95 Octopus Electronic Bricks, you can use them to build electronics projects just as easily as piling bricks. By using Octopus electronic bricks, you can connect Arduino/Freaduino compatible boards easily with various digital, analog and I2C/Uart interfaces... Add to Cart
Octopus 5mm LED Brick OBLED – Red ElecFreaks $1.95 Octopus Electronic Bricks, you can use them to build electronics projects just as easily as piling bricks. By using Octopus electronic bricks, you can connect Arduino/Freaduino compatible boards easily with various digital, analog and I2C/Uart interfaces... Add to Cart
DS18B20 Digital Temperature Sensor for Arduino - Pack of 5 $6.95 A set of 5 x DS18B20 sensors! This is a digital temperature sensor that can be used with any Arduino board. It measures temperatures from -55°C to +125°C and outputs a digital signal that can be read using one of the digital pins on the Arduino. The... Add to Cart
2-Channel Relay Module for Arduino & Raspberry Pi - 5V $3.75 This is a 5V, 10A 2-Channel Relay interface board. It can be used to control various appliances, and other equipments with large current. It can be controlled directly with 3.3V or 5V logic signals from a microcontroller (Arduino, 8051, AVR, PIC, DSP,... Add to Cart
8-Channel Relay Module for Arduino & Raspberry Pi - 5V $6.95 This is a 5V 8-Channel Relay interface board able to control various appliances, and other equipment with large currents. It can be controlled directly by Micro-controller (Raspberry Pi, Arduino,etc.). Features 5V 8-Channel Relay interface board,... Add to Cart
5V 4 Channel SSR Solid-State Relay High Level Trigger 2A 240V $7.95 5V Four Channel SSR Solid Relay Module 240V / 2A - High Level Trigger - For Arduino Specifications Max. LoadAC: 240V Input Voltage: 5V DC Trigger Current: 2mA Dimensions: 2.28 in x 2.2 in x 0.94 in (5.8 cm x 5.6 cm x 2.4 cm) Weight: 1.34 oz (38 g) Add to Cart
DHT22 AM2302 Digital Temperature Humidity Sensor for Arduino $4.95 The DHT22 is a basic, 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... Add to Cart
