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Showing 621-640 of 8009 products · 2480 unavailable products hidden
4 Channel I2C Motor Shield-V1.1
4-channel I2C-safe Bi-directional Logic Level Converter [BSS138]
4-Channel Industrial Modbus RTU Relay Module – 30A, RS485, LED Indicators, Rail-Mount
MPN: 30461
4-Channel Level Converter (12V to 3.3V)
4-Channel Level Converter (12V to 5V)
4 Channels IR Reflective Sensor
4 Channels RF Remote Control Module DC 5V
4-Channel Universal Fast Charger with LCD
4Core 50W Soldering Irons Heating Element Ceramic Heater
4-digit 8-segment Display Module for Raspberry Pi Pico, SPI-compatible
4-Digit Display
4G GNSS-RTK Positioning Kit (EMEA & Thailand)
MPN: KIT0212
4G LTE Dual-Chip Router with Integrated VPN and WiFi Capabilities
4-Hours Prepaid Consulting Time
4 in 1 Cable Dual USB 2.0 Power Cord Extension for Charging/Data 4USB Extension Cable OTG Adapter USB Splitter
4 in 1 Type-C to HDMI + 2 x USB + Type-C
4inch DSI Round Touch Display, 720 × 720, IPS, 10-Point Touch
4K HDMI Capture Card for Streaming Full HD 1080P 60FPS
4K HDMI to Micro HDMI Cable
4K Mini HDMI to Micro HDMI Cable
4 Channel I2C Motor Shield-V1.1
This motor shield uses dual TB6612 MOSFET drivers and a PCA9685PW I2C PWM controller to drive up to 4 DC motors or 2 stepper motors from an Arduino or compatible board. All motor control and speed management is handled via the I2C bus, freeing up digital pins for other uses. The stackable design...
4-channel I2C-safe Bi-directional Logic Level Converter [BSS138]
This bi-directional logic level converter from Adafruit uses 4× BSS138 FETs with 10K pull-up resistors to safely shift signals between different voltage levels. Unlike many level shifters, this design is fully compatible with I2C's open-drain pull-up signalling, following NXP's recommended applic...
4-Channel Industrial Modbus RTU Relay Module – 30A, RS485, LED Indicators, Rail-Mount
· MPN: 30461
The Waveshare Modbus RTU 4-Channel Relay Module provides reliable high-current switching for industrial automation over an RS485 bus. Each of the four SPDT relays handles loads up to 30A at 250VAC or 28VDC, making it suitable for controlling motors, lighting, HVAC systems, and other heavy-duty eq...
4-Channel Level Converter (12V to 3.3V)
This DFRobot 4-channel optocoupler-isolated level converter translates 12V signals down to 3.3V, making it easy to interface industrial sensors and PLC outputs with Arduino, Raspberry Pi, and other 3.3V microcontrollers. Each channel features photoelectric isolation for reliable signal separation...
4-Channel Level Converter (12V to 5V)
This DFRobot 4-channel optocoupler-isolated level converter translates 12V signals down to 5V, making it easy to interface industrial sensors and PLC outputs with Arduino and other 5V microcontrollers. Each channel features photoelectric isolation for reliable signal separation between high and l...
4 Channels IR Reflective Sensor
This Elecrow 4-channel IR reflective sensor module combines four infrared emitter/receiver pairs with a mainboard that processes all signals. When an object enters the detection range, the corresponding channel outputs a low (TTL 0) signal and its indicator LED lights up. Each channel has an onbo...
4 Channels RF Remote Control Module DC 5V
This Elecrow 4-channel RF remote control module pairs a 433MHz wireless receiver board with a 5-button RF remote controller. Each of the four latching relays provides passive (dry contact) output, allowing you to switch mains-powered appliances or DC loads up to 10A without additional circuitry. ...
4-Channel Universal Fast Charger with LCD
This 4-channel universal charger handles Ni-MH, Ni-Cd, Li-ion, and LiFePO4 cells simultaneously across four independent slots. Each battery is monitored individually by a microprocessor with precise Pulse Width Modulation (PWM) control, ensuring safe and efficient charging. A single Li-ion or LiF...
4Core 50W Soldering Irons Heating Element Ceramic Heater
A 4-core 50W ceramic heating element designed as a replacement for soldering iron handles on compatible constant-temperature soldering stations. The ceramic construction with four-wire heating provides fast heat-up, low power loss, and anti-static properties for reliable long-term use. Key Featu...
4-digit 8-segment Display Module for Raspberry Pi Pico, SPI-compatible
A compact 4-digit 8-segment red LED display module designed for the Raspberry Pi Pico. It plugs directly onto the Pico via an onboard female pin header and communicates over an SPI-compatible interface driven by an embedded 74HC595 shift register. The module comes with C/C++ and MicroPython demo ...
4-Digit Display
A simple 4-digit LED display module with a 2-wire serial interface (CLK and DIO), making it easy to add numeric readouts to micro:bit, Arduino, and other microcontroller projects. The module operates at 3.3V or 5V and requires just four connections: CLK, DIO, VCC, and GND. Key Features 4-Digit...
4G GNSS-RTK Positioning Kit (EMEA & Thailand)
· MPN: KIT0212
Designed for high-accuracy navigation projects, this kit uses Network RTK to deliver 5 cm + 1 ppm centimetre-level positioning across a typical 15-20km operational range. Its onboard 4G module receives RTCM correction data from a CORS network via the Ntrip protocol, removing the need for a local ...
4G LTE Dual-Chip Router with Integrated VPN and WiFi Capabilities
Industrial 4G LTE Router, multiple VPN protocols support, 3-ch Ethernet Ports, WIFI high-speed internet access, dual Qualcomm chips Industrial 4G LTE Router Enhanced WiFi, 1WAN/LAN+2LAN Supports multiple modes and frequency bands, suitable for countries or regions including Europe, Middl...
4-Hours Prepaid Consulting Time
Little Bird provides professional consulting services to help you get your electronics and IoT projects up and running. Whether you need a system and code review, troubleshooting, or hands-on implementation support, our team is here to help. Pre-paid consulting time is sold in 4-hour blocks at $...
4 in 1 Cable Dual USB 2.0 Power Cord Extension for Charging/Data 4USB Extension Cable OTG Adapter USB Splitter
This USB splitter cable expands a single USB 2.0 Type-A port into two, allowing you to connect multiple devices simultaneously for both charging and data transfer. It's a compact solution for adding extra USB connectivity to laptops, desktops, and in-car systems without needing a powered hub. Ke...
4 in 1 Type-C to HDMI + 2 x USB + Type-C
A compact 4-in-1 USB-C hub that expands a single Type-C port into HDMI video output, two USB-A data ports, and a USB-C power delivery passthrough. Simply plug into your laptop, tablet, or smartphone's USB-C port for instant connectivity — no drivers required. Key Features HDMI Output – Connect...
4inch DSI Round Touch Display, 720 × 720, IPS, 10-Point Touch
A 4-inch round IPS touchscreen display from Waveshare that connects to the Raspberry Pi via the DSI (Display Serial Interface) port. With a 720 × 720 resolution, 170° viewing angle, and 10-point capacitive touch through optically bonded toughened glass, it delivers excellent visual quality and re...
4K HDMI Capture Card for Streaming Full HD 1080P 60FPS
A USB 3.0 HDMI capture card that records and streams video at up to 1080p at 60 fps, with 4K HDMI passthrough. Connect any HDMI source — camera, game console, computer, or media player — and capture the video output directly to your computer for streaming or recording. The compact aluminium allo...
4K HDMI to Micro HDMI Cable
An 80 cm micro-HDMI to standard HDMI cable supporting 4K resolution, designed for the Raspberry Pi 4B and other devices with micro-HDMI output. Gold-plated connectors and 19-core shielding ensure reliable, stable signal transmission. Key Features 4K Support – High-definition video output up to...
4K Mini HDMI to Micro HDMI Cable
An 80 cm mini-HDMI to micro-HDMI cable supporting 4K resolution. This cable connects devices with mini-HDMI output (Type C) to devices with micro-HDMI input (Type D), or vice versa. Gold-plated connectors and 19-core shielding ensure reliable, stable signal transmission. Key Features 4K Suppor...