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5Pcs 125KHz EM4100 RFID Card Reader Module RDM630 UARTPrice: 645.0

2Pcs Geekcreit ATmega328P Nano V3 Controller Board Improved Version Module Development BoardPrice: 548.0

3pcs DC-DC 3V-15V to 12V Fixed Output Automatic Buck Boost Step Up Step Down Power Supply ModulePrice: 377.0

RC Resistance Surge Absorption Circuit Relay Contact Protection Circuit ElectromagneticPrice: 378.0

R3 DIP Board with cable (Arduino Generic) (IoT, Brand New)Price: 242.0

Robotdyn Voltage Regulator Module LDO 5V 800mA OutputPrice: 355.0

DC-DC 3V-15V to 12V Fixed Output Automatic Buck Boost Step Up Step Down Power Supply Module ForPrice: 336.0

MAX7219 Dot Matrix Module 4-in-1 LED Display ModulePrice: 324.0

3Pcs RC Resistance Surge Absorption Circuit Relay Contact Protection Circuit ElectromagneticPrice: 397.0

R3 SMD Board Improved Version CH340 Chip with cable (IoT, Brand New)Price: 180.0

5Pcs Geekcreit ATmega328P Nano V3 Controller Board Improved Version Module Development BoardPrice: 577.0

MAX31855 K Type Thermocouple Board Temperature Measurement Sensor ModulePrice: 549.0

3pcs Extend Serial IO I/O Module Grove I2C Interface Expansion Board M5Stack for Arduino - producPrice: 541.0

ATmega328P Nano V3 Controller Board For Improved Version Development Module Geekcreit for Arduino -Price: 464.0

Designing for Dollars : PIC12CXXX 8-PIN Microcontroller Design Challenge Applications HandbookPrice: 80.0

5Pcs MAX31855 MAX6675 SPI K Thermocouple Temperature Sensor Module BoardPrice: 701.0

3Pcs 125KHz EM4100 RFID Card Reader Module RDM630 UARTPrice: 502.0

1Pc Geekcreit ATmega328P Nano V3 Controller Board Improved Version Module Development BoardPrice: 457.0

5pcs APDS-9960 DIY 3.3V Mall RGB Gesture Sensor For I2C Interface Detectoin Proximity Sensing ColorPrice: 677.0

DHT22 Digital Temperature & Humidity Sensor Module with Cable ASAIR (IoT, Brand New)Price: 230.0

3Pcs MAX31855 MAX6675 SPI K Thermocouple Temperature Sensor Module BoardPrice: 564.0

Infrared Transmitter-Receiver 360 Infrared Signal Transmission without Dead Angle Multi-Functional CPrice: 344.0

3Pcs Geekcreit ATmega328P Nano V3 Controller Board Improved Version Module Development BoardPrice: 676.0

16 Channel DTMF MT8870 Audio Decoder Board Phone Voice Decoding Controller for Smart Home AutomationPrice: 436.0

HC05 6pin Bluetooth Module(Master/Slave) with Button (IoT, Brand New)Price: 150.0

20Pcs RC Resistance Surge Absorption Circuit Relay Contact Protection Circuit ElectromagneticPrice: 755.0

3pcs APDS-9960 DIY 3.3V Mall RGB Gesture Recognition Sensor For I2C Interface Detection Range 10-20cPrice: 549.0

LCD Egg Incubator Thermometer Automatic Controller Egg Hatcher Temperature Humidity ControllerPrice: 1269.0

LILYGO T-FH Female Header Interface Gesture Sensor Module I2C for T-WATCH TTV T-HigrowPrice: 314.0

DS18B20 IP67 Waterproof Digital Thermal Probe 1m with Original Chip (26AWG) (IoT, Brand New)Price: 110.0