RM0.25

  Screw-threaded hexagonal stand-off spacers of female-female type, with gold-tone plated brass construction.   Features Hexagonal threaded spacers are ideal for mounting between PCB circuit boards and machine boards. Color: Brass Tone Thread Size: M3 Female to Female   Package Content 1 x Spacer 2 x M3 Screw    

RM0.25

  Screw-threaded hexagonal stand-off spacers of male-female type, with gold-tone plated brass construction.   Features Hexagonal threaded spacers are ideal for mounting between PCB circuit boards and machine boards. Color: Brass Tone Thread Size: M3 Male to Female   Package Content 1 x Spacer 1 x M3 Screw 1 x M3 Nut    

RM295.00

Applications Go-karts Scooters E-bike ATV Motorized bicycle Moped   Specifications Rated voltage: 24V Motor Rated power: 250W / 10 - 30 Amps Under-voltage protection: 20.5V Current limiting protection: 21.5A Suitable motor: 24V max 250W Ambient temperature: -20°C - 45 °C            Turn potential: 5V Brake potential: Low potential brake   Dimensions 7.5 * 5.3 * 3.5cm (length * width * height)   Packaging Contents 1 x Driver Controller 1 x Motor 1 x Motor Mounting plate + bolts 1 x Throttle handle 2 x Brake Backket 1 x Key switch 1 x Charging port 1 x LED Headlight 1 x Light switch 1 x Teeth-less freewheel 1 x Freewheel adapter 1 x Chain Connectors    

RM8.50

  As we know, most of the modern devices which use Light sensors are notably used for auto-brightness according to light intensity. The device includes mobile phone screens and digital cameras for adjusting exposure. So here we will use one of the best light sensors, i.e TEMT6000 Ambient Light Sensor and interface it with Arduino to measure the light intensity.   Specifications Power Supply: 5V   Pins SIG Output Voltage from the divider circuit GND GND (0V) VCC Collector Voltage (5V)   How to temt6000-ambient-light-sensor-arduino-measure-light-intensity   Arduino Sketch Signal → A1 int lightLevel; void setup() { Serial.begin(9600); } void loop() { lightLevel = analogRead(A1); Serial.println(lightLevel, DEC); delay(500); }  

RM260.00

Raspberry Pi 4 Model B is the latest product in the popular Raspberry Pi range of computers. It offers ground-breaking increases in processor speed, multimedia performance, memory, and connectivity compared to the prior-generation Raspberry Pi 3 Model B+, while retaining backwards compatibility and similar power consumption. For the end user, Raspberry Pi 4 Model B provides desktop performance comparable to entry-level x86 PC systems. This product’s key features include a high-performance 64-bit quad-core processor, dual-display support at resolutions up to 4K via a pair of micro-HDMI ports, hardware video decode at up to 4Kp60, up to 4GB of RAM, dual-band 2.4/5.0 GHz wireless LAN, Bluetooth 5.0, Gigabit Ethernet, USB 3.0, and PoE capability (via a separate PoE HAT add-on). The dual-band wireless LAN and Bluetooth have modular compliance certifcation, allowing the board to be designed into end products with signifcantly reduced compliance testing, improving both cost and time to market.   So what's new? New Raspbain Software (Debian 10 Buster) Encapsulated processor Cortex A-72 USB 3.0 type C Ethernet Broadcom BCM54213PE on a separate bus to the USB traffic Bluetooth 5.5 and Bluetooth LE LPDDR4 SDRAM Since the new pi changes the full HDMI interface into two micro HDMI ports, so you may need this Micro HDMI to HDMI Adapter to work with your HDMI display.   Features Broadcom BCM2711, Quad core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz 2GB LPDDR4-2400 SDRAM  (4GB Version) 2.4 GHz and 5.0 GHz IEEE 802.11ac wireless, Bluetooth 5.0, BLE Gigabit Ethernet 2 USB 3.0 ports; 2 USB 2.0 ports. Raspberry Pi standard 40 pin GPIO header (fully backwards compatible with previous boards) 2 × micro-HDMI ports (up to 4kp60 supported) 2-lane MIPI DSI display port 2-lane MIPI CSI camera port 4-pole stereo audio and composite video port H.265 (4kp60 decode), H264 (1080p60 decode, 1080p30 encode) OpenGL ES 3.0 graphics Micro-SD card slot for loading operating system and data storage 5V DC via USB-C connector (minimum 3A*) 5V DC via GPIO header (minimum 3A*) Power over Ethernet (PoE) enabled (requires separate PoE HAT) Operating temperature: 0 – 50 degrees C ambient Supports Raspbian, Windows 10 IoT Core, OpenELEC, OSMC, Pidora, Arch Linux, RISC OS and More!     Software installation Beginners should start with the NOOBS (New Out Of Box Software) operating system installation manager, which gives the user a choice of operating system from the standard distributions. SD cards with NOOBS pre-installed should be available from any of our global distributors and resellers. Alternatively, you can download NOOBS. Raspbian is the recommended operating system for normal use on a Raspberry Pi. You can browse basic examples to help you get started with some of the software available in Raspbian, find more detail about the Raspbian operating system, or read information on fundamental Linux usage and commands for navigating the Raspberry Pi and managing its file system and users.   Comparison with Pi 3+ Spec Raspberry Pi 4 B Raspberry Pi 3 B+ CPU 1.5-GHz, Quad-Core Broadcom BCM2711B0 (Cortex A-72) 1.4-GHz, Quad Core Broadcom BCM2837B0  (Cortex A-53) RAM 1 - 4GB DDR4 1GB DDR2 GPU 500 MHz VideoCore VI  400 MHz VideoCore IV Video Out dual micro HDMI ports single HDMI port Max resolution 4K 60 Hz + 1080p or 2x 4K 30 Hz 2560 x 1600 USB Ports 2x USB 3.0 / 2x USB 2.0 4x USB 2.0 Wired Networking Gigabit Ethernet 330 Mbps Ethernet Wireless 802.11ac (2.4 / 5 GHz), Bluetooth 5.0 802.11ac (2.4 / 5 GHz), Bluetooth 4.1 Charging Port USB Type-C micro USB Power Requirement 3A, 5V 2.5A, 5V Size 3.5 x 2.3 x 0.76 inches (88 x 58 x 19.5mm) 3.2 x 2.2 x 0.76 inches (82 x 56 x 19.5mm) reviews/raspberry-pi-4-b,6193.html  

RM3.00

  This is a mini-traffic light display module, high brightness, very suitable for the production of traffic light system model. It is featured with its small size, simple wiring, targeted, and custom installation. It can be connected PWM to control the brightness of the LED.   Features Small size Simple wiring Targeted Custom installation  

RM8.50

  *Note: ESP8266 wifi module is not included   Features On-board capacitor to stabilize power supply Adapter module for ESP-01 Wi-Fi platform. Integrated 3.3V stabilizer voltage. Adapter can be used with Arduino UNO R3 or other platforms.   Specifications Voltage: 4,5 ~ 5,5 V (Integrated 3.3V LDO Regulator) Current: 0 to 240 mA Logic: 3.3V / 5V compatible  

RM12.00

    esp-01 / esp-01s does not included   This module is mainly controlled by esp8266-01 / esp-01s, and DHT11 is the temperature and humidity sensor. It can be used as a temperature and humidity collection node for smart home or IOT projects.   Features Working voltage: DC 3.7 v-12v  (support for 3.7V lithium battery) Measurement range: 20-90% RH 0 to 50 ° Accuracy: +/- 2 ° humidity +/- 5% RH    

RM28.00

  This power supply takes any input from 100V up to 220V AC, which is what comes out of your wall socket, and output 24V DC.   Applications Any digital devices use 24V DC and less than 2 Amperage .   Specifications Input : 110~240V AC  50/60HZ Output : DC 24V Output Current: 2A Standby power: Less than 0.1W Operating Temperature: 0°C to +55°C Cable length: 70 cm DC Plug Dimension: 5.5mm x 2.1mm DC Plug polarity: Positive (+) Inside, Negative (-) Outside.   Package Content 1 x Adapter     FAQ – How to choose In order to find the correct power supply for your device, you will need two pieces of information. These are Voltage (measured in Volts or V) and Amperage (measured in Amps or A). You can find this information off the back of the old power supply, or off the back of the device itself. If you do not find it on the device, you can check the manufacturer's website, or in the device's manual under "specifications". Voltage: All of the power supplies we sell are various from 5V to 24V DC. They take any input from 100V up to 220V AC, which is what comes out of your wall socket, and output 24V DC. So if your unit is not 24 Volt, you will need to find the correct adapter in our website. Amperage: Once you have confirmed that you need a 24 Volt power supply, you will need to find out how much power your device draws. This is called amperage. Next to the 24V in the specifications there will be another number followed by a capital "A" for Amps. You will need a power supply that can supply enough power for your device. If your device says it draws 3 Amp (3A), you need to use a power supply that can put out at least that many Amps. If your device states it needs 3A, then you can use a 3A, or 4A, or 5A unit. All will work. If the Amperage of your device is uneven, such as 3.13A or 4.16A, always round up. 3.13A rounds up to a 3.5A adapter, a 4.16A device will round up to a 4.5A or a 5A. Connector: All our power supplies have a connector that is standard for a 24V DC device. Most 24V DC devices use the standard tip. This tip is 5.5mm (outer barrel) by 2.5mm (inner barrel) and is center positive. It is a simple round barrel connector. To repeat, if you match the voltage and amperage, then you should not have to worry about the connector type accept in the rare occasion when your device has an unusual connector such as a double barrel, or a 4-pin, but these are easy to spot as the jack where the adapter plugs in will not be a simple circular barrel with a pin inside.   Suggestions DC Jack (Female) 2.1mm Connector w/ Screw Terminal Block Easy to install ABS material housing

RM85.00

  GY-53 is a digital infrared distance measurement sensor module. It’s working voltage is 3~5V, and it has many advantages: low power consumption, small volume, easy to mount. The operating principle is that the light of infrared LED irradiates the object under test before the reflected light being received by MCU. What MCU does is to output distance value by calculating time difference. This module has two modes to read value: one is serial port UART (TTL electrical level) + PWM (Line 1); the other is Chip IIC Mode. The baud rate of serial ports can be 9600bps or 115200bps. The configurable module has two kinds of output modes, continuous output and inquiry output; also, it has power fail safeguard.   Features Measure Range: 0~2m Frequency: 22ms (maximum) Working Voltage: 3~5VDC Working Electric Current: 25mA Storage Temperature: -20° ~ 85° Size: 25mm x 15.6mm Sensor Chip: VL53LOX   Introduction of Pins VCC Power Supply+ (3v-5v) GND Ground TX Serial Port USART_TX RX Serial Port USART_RX PWM Distance is converted into the PWM form PS Serial Port/IIC Mode Conversion XSHUT Chip Pin GPIO1 Chip Pin SDA Chip SDA SCL Chip SCL GND Ground VCC Power Supply+ (3v-5v)   int pin =5; unsigned long duration; void setup() { Serial.begin(9600); pinMode(pin, INPUT); delay(500); } void loop() { uint16_t distance=0; duration = pulseIn(pin, HIGH); distance=duration/10; Serial.print("distance: "); Serial.print( distance); Serial.print(" mm,time: "); Serial.print( duration); Serial.println("us"); delay(100); }  

RM56.00

Lithium Battery Rechargeable polymer Li-po. Widely used for remote control model which features high quality and durable performance. This is the best choice for you to enjoy more flying joys.    Caution:  Don't reverse connect the circuit and over discharge. Use it under the rating current. Don't over-charge, or over-discharge batteries. Don't put it beside the high temperature condition. Don't throw it into fire. Don't throw it into water.   Specifications Capacity: 1100mAh Voltage: 11.1V Discharge Rate: 25C Interface: JST, Futaba, and JR connector Battery Weight: 81g Battery Size: 72 * 33 * 17mm   Packaging list 1 x 11.1V 1100mAh 25C Lipo Battery

RM42.00

  The ESP32 MH-ET MiniKit Development Board includes the ESP32 SoC, USB-to-Serial (CH340G) IC, and all the necessary passive components come ready for plugging into your computer’s USB port and loading up custom firmware. Similar to other ESP32 development boards such as our DevKit, the MH-ET MiniKit offers an inexpensive solution for making internet-connected and Bluetooth-controllable devices. Moreover, its small footprint and accompanying a wide range of shields make it an ideal solution for quickly prototyping IoT projects in a compact amount of space. Even though the WeMos family of boards was originally developed for the ESP8266, the design of this MH-ET MiniKit allows for using the ESP32 with most of the original shields. This represents a great addition to an already superb ecosystem for developing internet-capable applications (Internet Of Things or IoT).   Features 240 MHz dual-core Tensilica LX6 microcontroller with 600 DMIPS Integrated 520 KB SRAM Integrated 802.11BGN HT40 Wi-Fi transceiver, baseband, stack, and LWIP Integrated dual-mode Bluetooth (classic and BLE) On-board PCB antenna / IPEX connector for external antenna Supports sniffer, station, softAP and Wi-Fi direct modes Max data rate of 150 Mbps@11n HT40, 72 Mbps@11n HT20, 54 Mbps@11g, and 11 Mbps@11b Maximum transmit power of 19.5 dBm@11b, 16.5 dBm@11g, 15.5 dBm@11n Minimum receiver sensitivity of -98 dBm 135 Mbps UDP sustained throughput   Specifications Microcontroller: ESP32-WROOM-32 Operating Voltage: 2.2V to 3.6V Clock Speed: 240MHz Flash: 4MByte PSRAM: 4MByte RAM: 520KB USB-UART: CP2104 Wifi: 802.11 b/g/n/e/i (802.11n up to 150 Mbps) Bluetooth: v4.2 BR/EDR & BLE Power Supply: 5V via micro USB port Power consumption Max current: 250mA Sleep current: 2.5 µA Active without WiFi current: 20mA Abmessung: 40 x 31 x 4.2mm Operating Temperature: -40°C to +125°C   Package Content 1 x Wemos D1 Mini ESP32 Pins   Tutorial  

RM1.40

  Specifications Color: Red & Black UL Style: 2468 Insulator color: Black, Red Conductor material: Tinned Copper AWG: 24 #no of Conductors: 2 Jacket Material: PVC Voltage rating: 300 V Operating temperature: 80 °C      

RM0.40

      Applications Jumper wire   Features Not an ideal for soldering compared to multi-core wire (17 / 7) Ideal for low voltage cable installations It is a flexible cable with a durable PVC protective sheath and copper conductors Available in multiple colours, ideal for colour-coding cable installations The cable offers good insulation due to the PVC insulation material and installation is easy and efficient   Specifications Cable Type: Single-Core Core Strands: 1/0.5 mm Outside diameter: 1.5mm Conductor area: 0.16mm2 Temperature rating: -15ºC to +85°C Conductor Material: Annealed Copper      

RM0.70

Equipment wires, ideal for use across a wide variety of electrical power, lighting and internal wiring applications. The flexible hook up cable can be used for reliable cable connections in a neat and well-organised layout. By using this high-quality range of equipment cables, the installation wires can be easily colour coded by using the different sheath colours available in the range, dependant on the installation terminals being used. In addition to this, the robust and carefully manufactured copper conductor ensures optimum reliability and performance, regardless of the application the wires are being used for.   Applications Equipment wire or hook up wire can be used for a wide variety of low voltage and current applications. These can range from domestic household appliances, industrial equipment and factory machine. Due to the reliability of the copper conductors and PVC sheath, these types of wires are usually the preferred choice with any internal wiring system. As an example, these are some common places you would find equipment wire: Circuit boards Computer internals Mobile and other battery-operated devices   Features Easy for soldering compared to 1 core wire Ideal for low voltage multi-purpose cable installations It is a flexible cable with a durable PVC protective sheath and copper conductors Available in multiple colours, ideal for colour-coding cable installations The cable offers good insulation due to the PVC insulation material and installation is easy and efficient thanks to the flexible layout of the cable   Specifications Cable Type: Multi-Core Core Strands: 17/0.16 mm Voltage rating: 600V AC Outside diameter: 1.6mm Conductor area: 0.16mm2 Conductor gauge: 26AWG Temperature rating: -15ºC to +85°C Conductor Material: Annealed Tinned Copper      

RM0.50

Equipment wires, ideal for use across a wide variety of electrical power, lighting and internal wiring applications. The flexible hook up cable can be used for reliable cable connections in a neat and well-organised layout. By using this high-quality range of equipment cables, the installation wires can be easily colour coded by using the different sheath colours available in the range, dependant on the installation terminals being used. In addition to this, the robust and carefully manufactured copper conductor ensures optimum reliability and performance, regardless of the application the wires are being used for.   Applications Equipment wire or hook up wire can be used for a wide variety of low voltage and current applications. These can range from domestic household appliances, industrial equipment and factory machine. Due to the reliability of the copper conductors and PVC sheath, these types of wires are usually the preferred choice with any internal wiring system. As an example, these are some common places you would find equipment wire: Circuit boards Computer internals Mobile and other battery-operated devices   Features Easy for soldering compared to 1 core wire Ideal for low voltage multi-purpose cable installations It is a flexible cable with a durable PVC protective sheath and copper conductors Available in multiple colours, ideal for colour-coding cable installations The cable offers good insulation due to the PVC insulation material and installation is easy and efficient thanks to the flexible layout of the cable   Specifications Cable Type: Multi-Core Core Strands: 7/0.16 mm Voltage rating: 300V AC Outside diameter: 1.3mm Conductor area: 0.16mm2 Conductor gauge: 26AWG Temperature rating: -15ºC to +85°C Conductor Material: Annealed Tinned Copper      

RM60.00

The USB-485-1 is a port-powered, bi-directional, integrated USB to RS485 adapter/converter that can be used to convert any standard full-duplex USB port into a two-wire balanced half duplex RS485 port and vice versa. The unit can be used to communicate with one loop of up to 256 units of RS485 devices and it comes with a built-in selectable 120-Ohm terminator for system reliability and easy installation. This USB to RS485 adapter/converter is powered from the USB port and it supports data auto-sensing & self-adjusting, therefore, no baud rate setting is required. And with the data direction auto-turnaround technology, no external power or flow control is required for RS485 communications. The USB to RS485 adapter / converter uses the latest FTDI chipset and is fully compatible with Windows 10 / 8 / 7 / Vista / XP / Server2008 / Server2003 / 2000 / 98 (32-bit), Windows 10 / 8 / 7 / Vista / XP / Server2008 / Server2003 (64-bit), Win CE, Mac, and Linux.   Features USB to 2-wire RS485 adapter / converter. Adds one RS-485 port to your USB port. Communicate with one loop of up to 256 units of RS485 devices. 300 to 3M Baud operation (auto-sensing and self-adjusting). Built-in selectable 120Ω end-of-line terminator for system reliability and easy installation. Built-in 15kV ESD static and circuit protection. Data direction auto-turnaround, no flow control is required. Supports Windows 10 / 8 / 7 / Vista / XP / Server2008 / Server2003 / 2000 / 98 (32-bit), Windows 10 / 8 / 7 / Vista / XP / Server2008 / Server2003 (64-bit), Win CE, Mac, and Linux. Supports remote wakeup and power management. Plug and play (hot-pluggable, data format auto-sensing and self-adjusting). Port-powered, no external power required. No IRQs required, no IRQ conflicts. Surface Mount Technology manufactured to RoHS and ISO-9001 standards. Safety: Strictly certified by world-class lab SGS / TUV (Cert No. E1/2013/90010C; E1/2013/90011C).   Specifications Compatibility: USB 2.0 (backward compatible) and EIA/TIA RS-485 standards Power Source: From USB port Current Consumption: Less than 60mA Cable length: 3.3 ft (1 m) Baud Rates: 300 to 3M bps (Auto-sensing & Self-adjusting) Distances: USB side: 10ft (3m); RS-485 side: Depending on the power from USB port, will transmit up to 4000ft (1.2km) at 19,200bps Connectors: USB Side: Type A Male; RS-485 Side: DB-9 Male / 5-Way Terminal Block Maximum number of drops: 256 End of Line Terminator: 120Ω (Built-in, selectable) Dimensions (H x W x D): 0.8 x 1.3 x 3.6 in (20 x 32 x 92mm) (excluding cable) Weight: 3.8 oz (108 g) Operating Temperature: 32ºF to 104ºF (0ºC to 40ºC) Operating Humidity: Up to 90% RH (no condensation)    

RM10.00

    A great DIY toy kit for kid to understand the basic mechanical structures, and power transmission. Eco-friendly, non-toxic, smooth without any burrs, and durable for long-lasting use. Direct assembly, no need for other accessories, simple assembly, exercise the child's hands-on ability.   Applications School project, simple and practical, parent & children relationship, intellectual development, children's learning fun.   Spec Power supply: 3V DC (2 x AA batteries) (Not included)    

RM15.00

  A great DIY toy kit for kid to understand the basic mechanical structures, and power transmission. Eco-friendly, non-toxic, smooth without any burrs, and durable for long-lasting use. Direct assembly, no need for other accessories, simple assembly, exercise the child's hands-on ability.   Applications School project, simple and practical, parent & children relationship, intellectual development, children's learning fun.   Spec Power supply: 3V DC (2 x AA batteries) (Not included)    

RM15.00

    A great DIY toy kit for kid to understand the basic mechanical structures, and power transmission. Made of eco-friendly, non-toxic, smooth without any burrs, and durable for long-lasting use. Direct assembly, no need for other accessories, simple assembly, exercise the child's hands-on ability.   Applications School project, simple and practical, parent & children relationship, intellectual development, children's learning fun.   Spec Power supply: 3V DC (2 x AA batteries) (Not included)