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Joystick Module Biaxial Buttons Rocker Sensor

This is a joystick very similar to the 'analog' joysticks on PlayStation 2 controllers. Directional movements are simply two potentiometers - one for each axis. Pots are ~10k each. This joystick also has a select button that is actuated when the joystick is pressed down. There are 5 pins on board: VCC, GND, X, Y and Button. Connect the module with 5V power suppy with VCC and GND, you can read out the joystick status by X,Y and button pins. When using the 5V power supply, the default analog output for X,Y is 2.5V. With the direction of the arrow, the voltage up to 5V, and the opposite direction down to 0V.

1.50 KWD Add to Cart

JPEG color camera TTL Interface

LinkSprite's latest serial port camera module can capture high resolution pictures and transport them over TTL serial, making it ideal for embedded applications. And it can do it in the dark, thanks to infrared LEDs. The infrared feature even has a built-in light sensor, so as soon as the ambient light gets low enough, it will automatically turn on the infrared LEDs for night vision!

35 KWD Add to Cart

Jumper Wire - JST Black Red

This is a simple two wire cable. Great for jumping from board to board. 2-pin JST connector on one end, bare cable on the opposite end.

1 KWD Add to Cart

keyestudio Bluetooth Module HC-06

This Bluetooth module can easily achieve serial wireless data transmission. Its operating frequency is among the most popular 2.4GHz ISM frequency band (i.e. Industrial, scientific and medical). 
It adopts Bluetooth 2.1+EDR standard. In Bluetooth 2.1, signal transmit time of different devices stands at a 0.5 seconds interval, so that the workload of Bluetooth chip can be reduced substantially and more sleeping time can be saved for Bluetooth. 
This module is set with serial interface, which is easy-to-use and simplifying overall design/development cycle.

6 KWD Add to Cart

keyestudio Digital IR Receiver Module

IR is widely used in remote control. With this IR receiver, Arduino project is able to receive command from any IR remoter controllers if you have right decoder. Well, it will be also easy to make your own IR controller using IR transmitter. 

2.5 KWD Add to Cart

keyestudio Digital IR Transmitter Module

IR Transmitter Module is designed for IR communication which is widely used for operating the television device from a short line-of-sight distance. The remote control is usually contracted to remote. 
Since infrared (IR) remote controls use light, they require line of sight to operate the destination device. The signal can, however, be reflected by mirrors, just like any other light sources. 
If operation is required where no line of sight is possible, for instance when controlling equipment in another room or installed in a cabinet, many brands of IR extenders are available for this on the market. Most of these have an IR receiver, picking up the IR signal and relaying it via radio waves to the remote part, which has an IR transmitter mimicking the original IR control. 
Infrared receivers also tend to have a more or less limited operating angle, which mainly depends on the optical characteristics of the phototransistor. However, it’s easy to increase the operating angle using a matte transparent object in front of the receiver. 

2.5 KWD Add to Cart

Keyestudio FR-4 Flame Sensor Board

This flame sensor can be used to detect fire or other lights with wavelength stands at 760nm ~ 1100nm.
In the fire-fighting robot game, the flame plays an important role in the probe, which can be used as the robot's eyes to find fire source.

Brand: Keyestudio 
Material: FR-4

1.5 KWD Add to Cart

Keyestudio Hall magnetic sensor

This is a Magnetic Induction Sensor. It senses the magnetic materials within a detection range up to 3cm. The detection range and the strength of the magnetic field are proportional. The output is digital on/off. This sensor uses the SFE Reed Switch - Magnetic Field Sensor.


1.5 KWD Add to Cart

keyestudio HM-10 Bluetooth-4.0 V2

keyestudio HM-10 Bluetooth-4.0 V2 adopts TI CC2541 chip, configuration space of 256Kb. 
It supports AT command. Users can modify working mode (master/slave), baud rate, device name, paring password, etc. 

12 KWD Add to Cart

Keyestudio Photo Interrupter Module

This sensor is composed of an infrared emitter on one upright and a shielded infrared detector on the other. 
By emitting a beam of infrared light from one upright to the other, the sensor can detect when an object passes 
between the uprights, breaking the beam. Used for many applications including optical limit switches, pellet 
dispensing, general object detection, etc. Gap width = 10mm


2.5 KWD Add to Cart

keyestudio Piranha LED Light Module

This is a special LED module. When you connect it to ARDUINO development board, after programming, it can emit beautiful light. Of course, you can also control it using PWM. It looks like fireflies at night. Sounds cool? You can also combine it with other sensors to do various interesting interactive experiments. 

3 KWD Add to Cart

L298N motor driver board module L298 stepper motor smart car robot

L298N is a high voltage, high current motor driver chip. The chip uses 15-pin package. The main features are: high voltage, maximum operating voltage up to 46V; output current, instantaneous peak current up to 3A, continuous operating current of 2A; rated power 25W. Contains two H-bridge high-voltage and high current full-bridge driver can be used to drive DC motors and stepper motors, relays, coils and other inductive load; using standard logic level signal control; having two enable control terminal, in allows input signal without being affected or disable the device has a logic supply input, the internal logic circuit part of the work at a low voltage; can be an external sense resistor, the amount of change back to the control circuit. Drive motor using L298N chip, the chip can drive a two-phase stepper motors or four-phase stepper motor, can drive two DC motors.

3.5 KWD Add to Cart

L7905 negative voltage Regulator

Voltage regulators are very common in electronic circuits. They provide a constant output voltage for a varied input voltage. In our case the 7905 IC is an negative 5V regulator, meaning it provides -5V as output. The name 7905 signifies two meaning, “79” means that it is a negative voltage regulator and “05” means that it provides 5V as output. So our 7905 will provide a -5V output voltage.

The output current of this IC can go up to 1.5A, but the IC suffers from heavy heat loss hence a Heat sink is recommended for projects that consume more current. For example if the input voltage is 12V and you are consuming 1A, then (12-5) * 1 = 7W. This 7 Watts will be dissipated as heat. 


Why do we need Negative Voltage Regulators?

Negative voltage regulators are mainly used in Op-Amp and other circuits where a negative supply voltage is needed. In many cases where an Op-Amp is working in dual mode power supply a negative voltage will be regulated by these 79XX ICs. Also these IC’s will be able to source current into the ground rail instead of sinking it as normally

7905 Regulator Applications

  • Constant -5V output regulator to for op-amp signals
  • Adjustable Output Regulator
  • Current Limiter for certain applications
  • Regulated Dual Supply

Pin Number

Pin Name



Ground (Gnd)

Unregulated Input Voltage


Input (V+

Connected to Ground


Output (Vo)

Outputs Regulated -5V

0.500 KWD Add to Cart

LCD with header pins

LCD1602 is a parallel type display having 16 rows and 2 column. LCD can display any character, number and symbol. This is a most basic display for Arduino, AVR, PIC or any other controller and processor.

2 KWD Add to Cart

LCD module -KEYES-KS061

This module is ideally suited to adding a screen to your project. This is the 1602 backlit module which provides 2 lines of 16 white characters on a blue background and is based on the popular HD44780 setup. This set includes a serial interface board that allows the use of the I2C connection on microcontrollers like the Arduino.

The included serial board uses the serial data and clock connections to obtain data to display on the screen. Microcontrollers such as the Arduino communicate using these serial connections by running a readily available library, please contact us if you require assistance finding obtaining the files. The interface board also contains a potentiometer that controls the brightness of the letters on the background.

When using this set with an Arduino you connect SDA and SCL are connected to A4 and A5 respectively. The Arduino requires the use of the LiquidCrystal I2C library which is readily available that includes examples. Instructions for the setup process are easy to find online, however please do not hesitate to contact us if you require assistance.


4.00 KWD Add to Cart