A.I. Electronics

1 Channel 5V Relay Module Low level Trigger    1-Channel relay module, with photoelectric isolation    dc or ac signal control, can control 220 v ac load    5v relay, low level trigger

L293D WiFi Motor Drive Expansion Board Shield Module for NodeMCU CP2102
Motor power, control power separation; In the experiment, by short-circuiting block the merger, the VIN and VM short, while power to the motor and the control board
Module provides short-circuit sub (short the VM and VIN), you can easily use one power (must 4.5V ~ 9V) while completing motor drive and control

Screw Terminal Expansion Adapter Board for the Arduino Nano V3.0 AVR
Use this dock to add extra connections to your Nano! It uses screw terminals so that you can be sure the connection is strong, and also use thicker/stranded wires.
This dock must be soldered together and a Nano is NOT sold with this item and is only pictured for illustrative purposes.
Package Contents:1 Nano Dock.

L298N Motor Drive Controller Board Module Dual H Bridge DC Stepper fit Arduino Electric Projects, Smart Car Robot
Dual-channel H-bridge driver working mode creates higher working efficiency,L298N as main chip, Can drive one 2-phase stepper motor, one 4-phase stepper motor or two DC motors.
To avoid damage the voltage stabilizing chip, please use an external 5V logic supply when using more than 12V driving voltage.

Gamepad Joystick Shield Expansion Board Analog Keyboard for Arduino
Add the RF interface of nRF24L01 and Nokia 5110 LCD interface, which is very convenient for prototyping and secondary game development.
The bluetooth module interface has been added, Convenient Bluetooth wireless serial communication.

AVR ISP Programmable Expansion Shield Board Module For Arduino Uno R3 Mega2560 Atmega328P
Compatibility: As it uses SPI pins of ICSP interface, compatible with for Arduino UNO R3 / for Arduino Mega2560, can change to the bootloader burner when it is directly plugged onto the two boards.

Motor Drive Shield L293D
A monolithic integrated, high voltage, high current, 4-channel driver
Size:6.8cm x 5.5cm x 2cm - 2.68inch x 2.17inch x 0.79inch.

Keypad 4 x 4 Matrix Array 16 Key Membrane Switch Keyboard
8 pins connector
White sticker can peel off for adhesive mounting
Maximum Circuit Rating: 35VDC, 100mA
Operation Temperature: 0 to +70 centigrade

400 Points Solderless Breadboard
400 Points Solderless Breadboard with 2 Positive & Negative Power Lines on both ends.
White ABS Plastic Body with Black Printed Legend. Color Legend on Distribution Strips.

 5MM 5V Mini Traffic Light Red Yellow Green LED Display Module

DS3231 AT24C32 IIC RTC Real Time Clock Module
Real Time Clock Chip The DS3231RTC is used as a real time clock chip which keeps the time running even if the main power supply is off (with the help of a battery).
Complete Clock Calendar Functionality Including Seconds, Minutes, Hours, Day, Date, Month, and Year, with Leap-Year Compensation Up to Year 2100.

Low level trigger 4-channel 5v Solid State Relay Module Board SSR
Led indicator for each relay.
Input control signal voltage: 0V - 0.5V Low stage (SSR is OFF), 0.5V - 2.5V (unknown state), 2.5V - 20V High state (SSR is ON); SSR Output (each channel);
Load voltage range: 75 to 264VAC (50/60Hz); Load current: 0.1 to 2 AMP Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)