All Products
Showing 881-900 of 11441 products
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-core Alarm Cable
A flexible 4-core alarm cable with stranded conductors in a tough white outer sheath, supplied on a 30-metre roll. Each core consists of 7 × 0.16mm strands, providing good flexibility for installation in security systems, intercoms, and low-voltage wiring applications. Specifications Conductor...
4 Core Alarm Cable
A flexible 4-core alarm cable with stranded tin-plated copper conductors in a tough white outer sheath. Each core consists of 7 × 0.16mm strands (25 AWG), providing good flexibility for installation in security systems, intercoms, and low-voltage wiring applications. Sold per metre. Specificatio...
4 Digit 7 Segment Display - Blue
A common-anode 4-digit 7-segment LED display in blue, ideal for building clocks, timers, counters, and other numeric readouts. The display features 16 through-hole pins controlling four digits, each with a decimal point, plus colon and apostrophe indicators for clock-style formatting. Key Featur...
4 Digit 7 Segment Display - Green
A common-anode 4-digit 7-segment LED display in green, ideal for building clocks, timers, counters, and other numeric readouts. The display features 16 through-hole pins controlling four digits, each with a decimal point, plus colon and apostrophe indicators for clock-style formatting. Key Featu...
4 Digit 7 Segment Display - Red
A common-anode 4-digit 7-segment LED display in red, ideal for building clocks, timers, counters, and other numeric readouts. The display features 16 through-hole pins controlling four digits, each with a decimal point, plus colon and apostrophe indicators for clock-style formatting. Key Feature...
4 Digit 7 Segment Display - White
A common-anode 4-digit 7-segment LED display in white, ideal for building clocks, timers, counters, and other numeric readouts. The display features 16 through-hole pins controlling four digits, each with a decimal point, plus colon and apostrophe indicators for clock-style formatting. Key Featu...
4 Digit 7 Segment Display - Yellow
A common-anode 4-digit 7-segment LED display in yellow, ideal for building clocks, timers, counters, and other numeric readouts. The display features 16 through-hole pins controlling four digits, each with a decimal point, plus colon and apostrophe indicators for clock-style formatting. Key Feat...
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
Add a clear numeric readout to your next microcontroller project with this simple 4-digit LED display module. It is suited to showing counters, timers, scores and sensor values without needing lots of I/O pins.The module uses a 2-wire serial interface with CLK and DIO pins, and runs from either 3...
4G GNSS-RTK Positioning Kit (EMEA & Thailand)
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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...
4in 720x720 Square RGB666 TTL TFT Display - No Touch
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This square 4 inch TFT panel gives advanced display projects a high-resolution 720x720 pixel canvas with 16-bit full colour. It is an IPS display, so the colour remains strong up to 80 degrees off-axis in any direction.This version does not include a touchscreen. The panel uses an ST7701S TFT dri...
