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Mega 2560 Board Compatible with Arduino x50 UnitsPrice: 27450.0

2pcs 5V 4 Channel Relay Module For PIC ARM DSP AVR MSP430 Blue Geekcreit for Arduino - Products thatPrice: 345.17

DFRobot (DFR0021-B) Add-On Board, LED Light Module, BluePrice: 165.0

3Pcs Geekcreit ATmega328P Nano V3 Controller Board Improved Version Module Development BoardPrice: 481.54

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

1Pc Geekcreit ATmega328P Nano V3 Controller Board Improved Version Module Development BoardPrice: 372.45

2Pcs 5V 1 Channel Relay Module One Channel Relay Expansion Module BoardPrice: 374.0

GY-291 ADXL345 3-Axis Tilt Digital Gravity Acceleration Accelerometer Sensor ModulePrice: 334.0

Socket Adapter Module Board For 8 Pin NRF24L01+ Wireless TransceiverPrice: 335.0

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

20Pcs 5V Relay 1 Channel Module One Channel Relay Expansion Module BoardPrice: 641.0

2Pcs Socket Adapter Plate For 8Pin NRF24L01+ Wireless ModulePrice: 354.0

250A 10A DC12V 1CH Channel Relay Module Low Level Active For Home Smart PLC Geekcreit for Arduino -Price: 334.0

3 Colour RGB SMD LED Display Module 5050 Full ColorPrice: 336.0

Basic Starter Kit for R3 Projects (IoT, Brand New)Price: 550.0

Microchip (RN171XVW-I/RM) Wireless LAN Module, 802.11 b/gPrice: 2109.0

Flame Sensor ModulePrice: 28.88

OLED USB Voltmeter & Current Capacity TesterPrice: 614.96

AHT20 + BMP280 Temperature, Humidity, and Pressure ModulePrice: 52.9

MQ2 Smoke Gas LPG Butane hydrogen Sensor Module (IoT, Brand New)Price: 100.0

Waveshare RP2040-Plus Pico-like MCU Board Based on Raspberry Pi MCU RP2040, without Pinheader, RP...Price: 390.89

NXP (KWIKSTIK-K40) Development Kit, K40X256VLQ100 MCU, USBPrice: 2395.0

Waveshare RP2040-Plus Pico-like MCU Board Based on Raspberry Pi MCU RP2040, with PinheaderPrice: 264.46

AVR ICS (ASP) ProgrammerPrice: 66.5

KY015 DHT11 Temperature and Humidity Sensor Module (IoT, Brand New)Price: 80.0

DFRobot (DFR0654-F) FireBeetle 2 Board Kit, ESP32-WROOM-32E, Xtensa LX6, 32 bit, IoT MCUPrice: 492.0

Waveshare RP2040-Plus Pico-like MCU Board Based on Raspberry Pi MCU RP2040, without PinheaderPrice: 288.88

MCP23017 Port ExpanderPrice: 81.08

STMicroelectronics (NUCLEO-F303ZE) Development Board, STM32F303ZE MCUPrice: 1315.0

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