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2Pcs Geekcreit 5V 4 Channel Relay Module PIC ARM DSP AVR MSP430 Blue Geekcreit for Arduino - productPrice: 401.0

Geekcreit 5V 4 Channel Relay Module For PIC ARM DSP AVR MSP430 Geekcreit for Arduino - products thPrice: 430.0

APC220 Wireless Data Communication Module USB Adapter Kit Geekcreit for Arduino - products that workPrice: 972.0

BESTEP 4 Channel 5V Relay Module Drive Board For Auduino MCU Control BoardPrice: 392.0

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

5V Button Cap Keypad 3x4 Module BoardPrice: 438.0

Waveshare RP2040-LCD-0.96 Pico-like MCU Board Based on Raspberry Pi MCU RP2040, with PinheaderPrice: 356.24

E18-D80NK Infrared Photoelectric Switch Obstacle Avoidance Sensor Module Long Range DetectionPrice: 171.92

ATMEGA328P-AUPrice: 173.03

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

Maxim Integrated (MAX3100EEE+T) UART Interface, 1 Channel, 230 KbaudPrice: 1029.0

Maxim Integrated (DS1307+) RTC IC, I2C, Serial, 4.5 V to 5.5 V, DIP-8Price: 515.0

PN532 nfc rfid V3 modulePrice: 145.48

Waveshare RP2040-LCD-0.96 Pico-like MCU Board Based on Raspberry Pi MCU RP2040, with Pinheader, R...Price: 481.56

5V HCSR04 Ultrasonic Sensor 4pin (IoT, Brand New)Price: 93.0

WAVESHARE RP2350 High-Performance Development Board 480 X 480 Resolution(With Touch Screen)Price: 1625.93

Piezo Buzzer 9*5.5mmPrice: 4.55

NXP (FRDM-K82F) Development Board, Kinetis K82/K81/K80 MCUsPrice: 5485.0

SIM800L GPRS GSM ModulePrice: 350.46

Power Supply 5V 2AhPrice: 49.0

WTV020SD Voice Module SD Card Audio Playback ModulePrice: 178.54

Microchip (ENC424J600-I/PT) Ethernet Controller, 100 Mbps, IEEE 802.3Price: 325.0

Maxim Integrated (DS1339BU+) RTC IC, I2C, 1.71 V to 5.5 V, µSOP-8Price: 509.0

PL2303 USB To TTL Module/AdapterPrice: 66.12

Thermaltake VENTUS Z Mouse USB Type-A Laser 11000dpi Right-handPrice: 1000.0

WAVESHARE RP2350 High-Performance Development Board 480 X 480 Resolution(With Touch Screen)Price: 896.0

Nxp (2428177) I/O Expander, 8bit, 400 kHz, I2C, 1.65 V, 5.5 V, TSSOPPrice: 195.0

3pcs ADC CMOS CD74HC4067 16CH Channel Analog Digital Multiplexer Module Board Sensor ControllerPrice: 361.0

20pcs Snow Raindrops Humidity Rain Weather Detect Sensor Module Geekcreit for Arduino - products thaPrice: 642.0

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