Wemos D1 R2

 449.00

The ESP8266 is a low-cost Wi-Fi microchip with full TCP/IP stack and microcontroller. The ESP8266 WiFi Module is a self contained SOC with integrated TCP/IP protocol stack that can give any microcontroller access to your WiFi network. The ESP8266 is capable of either hosting an application or offloading all Wi-Fi networking functions from another application processor. The ESP8266 can be controlled from your local Wi-Fi network or from the internet (after port forwarding). The ESP-01 module has GPIO pins that can be programmed to turn ON/OFF LED or a relay ON/OFF through the internet. The module can be programmed using an Arduino/USB-to-TTL converter through the serial pins (RX, TX).

Features:
•    802.11 b/g/n protocol
•    Wi-Fi Direct (P2P), soft-AP
•    Integrated TCP/IP protocol stack
•    Integrated TR switch, balun, LNA, power amplifier and matching network
•    Integrated PLL, regulators, and power management units
•    +19.5dBm  output power in 802.11b mode
•    Power down leakage current of < 10uA  
•    Integrated low power 32-bit CPU could be used as application processor
•    SDIO 2.0, SPI, UART
•    STBC, 1×1 MIMO, 2×1 MIMO
•    A-MPDU & A-MSDU aggregation & s guard interval0.4  
•    Wake up and transmit packets in < 2ms  
•    Standby power consumption of < 1.0mW (DTIM3)
 

L293D Motor Driver Shield

 109.00

The L293 and L293D devices are quadruple high-current half-H drivers. The L293 is designed to provide bidirectional drive currents of up to 1 A at voltages from 4.5 V to 36 V. The L293D is designed to provide bidirectional drive currents of up to 600-mA at voltages from 4.5 V to 36 V. Both devices are designed to drive inductive loads such as relays, solenoids, DC and bipolar stepping motors, as well other high-current/high-voltage loads in positive-supply applications.
Each output is a complete totem-pole drive circuit, with a Darlington transistor sink and a pseudo- Darlington source. Drivers are enabled in pairs, with drivers 1 and 2 enabled by 1,2EN and drivers 3 and 4 enabled by 3,4EN. The L293 and L293D are characterized for operation from 0°C to 70°C.

FEATURES:

•    Wide Supply-Voltage Range: 4.5 V to 36 V
•    Separate Input-Logic Supply
•    Internal ESD Protection
•    High-Noise-Immunity Inputs
•    Output Current 1 A Per Channel (600 mA for L293D)
•    Peak Output Current 2 A Per Channel (1.2 A for L293D)
•    Output Clamp Diodes for Inductive Transient Suppression (L293D)

L298P Motor Driver Shield

 249.00

The L298 Driver is a high voltage, high current dual full bridge driver designed to accept standard TTL logic levels and drive inductive loads such relays, solenoids, DC and stepping motors. Two enable inputs are provided to enable or disable the device independently of the input signals. The emitters of the lower transistors of each bridge are connected together the corresponding external terminal can be used for the connection of an external sensing resistor.
 

Features:

• Operating supply voltage up to 46 V 
• Total DC current up to 4 A 
• Low saturation voltage
• Over temperature protection
• Logical "0" input voltage upto1.5 V (HIGH NOISE IMMUNITY)
• Two motor direction indicator LEDs 
• An onboard user-accessible 5V low-dropout regulator
• Schottky EMF-protection diodes
• Screw-terminals for power and motor connections
• High quality PCB FR4 Grade with FPT Certified

Stepper motor with Driver Board

 199.00

The ULN2003 stepper motor driver PCB provides a direct drive interface between your microcontroller and stepper motor. The PCB provides 4 inputs for connection to your microcontroller, power supply connection for the stepper motor voltage, and ON/OFF jumper, a direct connect stepper motor header and 4 LEDs to indicate stepping state.

Stepper Motor Connection: 
Connect stepper motor to this header. If you use one of our stepper motors they will just plug directly into the header. If you have another brand without the correct header plug, you could solder the wires directly to the back of the PCB. 

Step State LEDs:
Indicate which channel is active. 

Node MCU

 399.00

NodeMCU is an open source IoT platform. It includes firmware which runs on the ESP8266 Wi-Fi SoC from Espressif Systems, and hardware which is based on the ESP-12 module.

LEDs - Yellow

 99.00

A light-emitting diode (LED) is a semiconductor light source that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. The color of the light (corresponding to the energy of the photons) is determined by the energy required for electrons to cross the band gap of the semiconductor.

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LEDs - White

 99.00

A light-emitting diode (LED) is a semiconductor light source that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. The color of the light (corresponding to the energy of the photons) is determined by the energy required for electrons to cross the band gap of the semiconductor.

Button Switch Set

 799.00

A push-button (also spelled pushbutton) or simply button is a simple switch mechanism for controlling some aspect of a machine or a process. Buttons are typically made out of hard material, usually plastic or metal. The surface is usually flat or shaped to accommodate the human finger or hand, so as to be easily depressed or pushed.