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Showing 21-40 of 45 products · 15 unavailable products hidden
RFID Reader with Cards Kit- 13.56MHz
This RFID kit includes a 13.56M RF reader module, which use the RC522 IC, plus 2 S50 RFID cards to help you learn and add the 13.56 MHz RF transition to your project. The MF RC522 is a highly integrated transmission module for contactless communication at 13.56 MHz, it supports ISO 14443A/MIFARE ...
JST PH 4-Pin to Male Header Cable - I2C STEMMA Cable - 200mm
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This 200 mm cable converts a JST PH 4-pin connector into four individual wires with 0.1″ (2.54 mm) male header pins on the end. It's designed for connecting STEMMA and Grove I²C boards to breadboards, socket headers, or any standard 0.1″ pitch connection. Key Features JST PH to Male Headers – ...
MODBUS-RTU RS485 Soil EC and pH Monitoring Sensor (IP68, 5-30V)
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##Introduction The soil electrical conductivity (EC) and pH sensor operate within a wide voltage range of 5-30V, transmit data via RS485 using the MODBUS-RTU protocol, and deliver quick, reliable responses with minimal interference from environmental factors. The sensor is designed for easy integ...
51kΩ ±5% 0.1W 0603 SMD Resistor
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This is a general-purpose surface-mount 51 kΩ resistor for everyday PCB builds, repairs and prototyping. With a standard ±5% tolerance and 1/10W power rating, it is suited to a wide range of non-critical electronics applications.The compact SMD package is useful for modern high-density board layo...
Gravity: Analog pH Sensor / Meter Pro Kit V2
DFRobot Gravity: Analog pH meter pro V2 is specifically designed to measure the pH of the solution and reflect the acidity or alkalinity. It is commonly used in various applications such as aquaponics, aquaculture, and environmental water testing.As an upgraded version of pH meter pro V1, the sec...
6V Air Valve with 2-pin JST PH Connector - FA0520E
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The 6V Air Valve (FA0520E) is a 3-port solenoid valve for pneumatic systems, functioning similarly to an electrical relay. It features a common port (COM), a normally open port, and a normally closed port, allowing you to switch air flow direction by powering the valve on or off. The valve is ra...
2 x AA Battery Holder with On/Off Switch JST PH Connector
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A slim 2×AA battery holder with a built-in on/off switch and genuine JST PH connector. Two AA batteries in series provide approximately 3V — ideal for powering low-voltage electronics projects, microcontrollers, and portable builds without needing to disconnect the battery to turn off power. The...
DC-DC Step Down Buck Converter (6~24V to 5V/16A)
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A high-efficiency DC-DC step-down (buck) converter that accepts 6–24 V input and delivers a stable 5 V output at up to 16 A. With over 90% conversion efficiency at typical loads and output ripple below 20 mV, it provides clean, reliable power for demanding applications. The module includes over-...
Gravity: Analog pH Sensor/Meter Kit V2
The Gravity Analog pH Sensor/Meter Kit V2 is designed to measure the pH of liquids, indicating acidity or alkalinity on a scale of 0–14. It's commonly used in aquaponics, aquaculture, hydroponics, and environmental water testing. The kit includes a laboratory-grade pH probe, a signal conversion b...
6 DOF 25KG Digital Servo Educational Desktop Robotic Arm V2
A fully assembled 6 degrees-of-freedom desktop robotic arm powered by six high-torque 25 kg·cm digital servo motors. The V2 version arrives pre-assembled and factory-calibrated, so you can start programming and experimenting straight away. Built from brushed aluminium alloy with metal ball beari...
JST-PH Battery Extension Cable - 500mm
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A 500 mm extension cable with a JST-PH 2-pin socket on one end and a matching plug on the other. The colour-coded wires make it easy to verify correct polarity. Compatible with JST-PH terminated battery packs including LiPo, Li-Ion, and AAA battery holders. Key Features JST-PH 2-Pin Connectors...
Adafruit 2.13 250x122 Tri-Color eInk / ePaper Display with SRAM - SSD1680 Driver
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The Adafruit 2.13" Tri-Colour eInk Display brings electronic paper technology to your microcontroller projects. Featuring a 250×122 pixel display with black, red, and white ink, this breakout delivers high-contrast, daylight-readable visuals that persist even when power is completely disconnected...
12V Low noise DC Motor 146RPM w/Encoder
The DFRobot 12V Low Noise DC Motor (Model 28PA51G) is a quiet, high-torque geared motor with a built-in two-phase hall encoder. Designed for applications where noise is a concern, it produces approximately 57–68 dBA under no-load conditions — making it well suited for indoor robotics and equipmen...
Miniware MDP-XP Smart Digital Power Supply Kit
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The MDP-XP kit brings Miniware’s modular Mini Digital Power System into a programmable linear DC supply setup for lab, repair and development work. It supports flexible stacking, 2.4G wireless display and control, microsecond transient response, high frame rate real-time waveform sampling and ult...
JST-PH 2-Pin SMT Right Angle Connector
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This JST PH 2-pin SMT right-angle connector is a surface-mount header designed to accept standard JST PH 2-pin plugs. It's commonly used as a battery connector on microcontroller boards, LiPo chargers, and small electronics — compatible with single-cell LiPo/Li-Ion battery leads, coin cell holder...
Addressable RGB LED Ring (24 LEDs)
Create eye-catching circular lighting effects with this 24-LED addressable RGB ring. Each of the 24 WS2812 LEDs can be individually controlled for colour and brightness, making it perfect for interactive displays, wearable projects, and rotary encoder feedback. Compatible with the Adafruit NeoPix...
10 Segment LED Bar Graph - Red
A compact 10-segment LED bar graph in super bright red. Each segment is an individual LED housed together in a standard-size package, making it easy to drive from a microcontroller or shift register. Low power consumption and categorised luminous intensity make it suitable for both prototyping an...
Gravity: Arduino pH Sensor / Meter Kit
You may check the latest version - Gravity: Analog pH Sensor/Meter Kit V2 to meet your requirements and Liquid Sensor Selection Guide to get better familiar with our liquid sensor series.Need to measure water quality and other parameters but haven't got any low-cost pH meter? Find it difficult t...
Gravity: Arduino pH Sensor Meter Pro
This is a professional Arduino pH Sensor Meter Kit with industrial electrode. It has built-in simple, convenient , practical connection and long life (up to 1 year), which makes it very suitable for long term online monitoring. It has an LED which works as the Power Indicator, a BNC connector...
RS485 Soil pH, Moisture, and Temperature Monitoring Sensor in Soil-less Cultivation (Anti-corrosion, 5-30V)
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##Introduction This RS485 soil temperature, humidity, and pH sensor supports a broad voltage power supply range (5-30V) and communicates data through the reliable MODBUS-RTU protocol, allowing for seamless integration into existing automated irrigation systems. It can be paired with an Arduino UN...
