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DC 12V Mini Submersible Water Pump 240L/H 63 Gallon Pump    VOLTAGE--DC12V/5W （AC is forbiden, Red wire "+" Black wire "-"）    Overvoltage Protection-If the voltage over DC12+1.5V, the water pump will power off.    Specification-Max Flow: 240L/H (63 Gallon); H-Max (Lift height): 0-3m    No Self-priming function-It must be completely immersed in water when using.    Detachable & Cleanable-Use only in clean water, not corrosive liquids. Can be disassemble if you need.

SG90 9G Micro Servo Motor Kit for RC Robot Arm Helicopter Airplane Remote Control

CH340 Serial Port Debugger USB to TTL Converter CH340G module STC Download Cable Adapter Module

5V Relay 1 Channel SSR Low Level Solid State Relay Module 250V 2A

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

Display 0.96 Inch Yellow Blue I2C Serial Self-Luminous Display Board
128x64 Resolution

Arduino Nano V3.0 Microcontroller Board with CH340 Type C USB Driver, 16Mhz ATmega328P

Arduino UNO ATmega328P with USB Cable for Arduino - Compatible With Arduino IDE

MQ7 Gas Sensor For Carbon Monoxide CO Detects

LCD i2c display module with blue blacklight

Arduino MEGA2560 R3 ATmega2560-16AU CH340G USB Development Board

Arduino UNO R3 SMD 328P + Type C USB Cable