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Specifications
- 2004 204 20X4 Character LCD Display Module Blue Backlight.
- Blue backlight
- Fully assembled and tested Serial LCD 20x4 Module
- Display Format: 20 Characters x 4 lines
- Supply voltage: 5V
- The module can be easily interfaced with a MCU
- The module is a low-power consumption character LCD Module with a built-in controller
- Size: approx. 98mm x 60mm x 12mm

What's in the box?
1 x 2004 LCD Display Module
Resources
Interfacing with a 2004 and 1602 LCD

- current detection
- over current protection (can be preset from 0.5A to 35.0A)
Features
- Operating voltage: DC 5V
- Current detection range: DC +-35A, AC 25A
- Linearity: K=60mV/A
- Limit current range: 0.5A to 35A(for on/off value output)
- Over current signal indicator LED
- Sampling current conversion analog voltage signal output and it can connect ADC; TTL level signal output and it can connect MCU IO port control
- Board size 37mm x 31mm
- Working temperature: 25 to 85C
What's in the box?
1 x WCS1800 Hall current detection sensor
Resources
Interface

VCC: power positive
DOUT: TLL high/low level signal output
GND: power negative
AOUT: sampling current signal conversion voltage output port
Analog voltage signal output (AOUT)
Relationship between detection current and analog signal output is shown below:
Analog signal output: V0=Vcc*0.5±la*K (la is actual current through current detection pin, and K is linearity)
Eg: Input current is 1A, Vcc=5V and WS1800 linearity is 60mV/A
- When the current flows in from positive direction: V0=Vcc*0.5+la*K, V0=(2.5+0.06)V=2.56V
- When the current flows in from negative direction: V0=Vcc*0.5-la*K, V0=(2.5-0.06)V=2.44V
- If it is an AC signal: V0=Vcc*0.5+la*K, V0=(2.5+0.06)V=2.56V
The above are ideal values. There might be some precision errors.
On/Off output(DOUT)
- Make sure the current flows in from the positive direction. Adjust to the desired current warning level.
- LED will be on when current is below the setting and DOUT will be low.
- When the detected current is higher than your setting, the LED will turn off and the DOUT pin will go high.
Specifications
| Lead screw | |
| Material | stainless steel |
| Diameter | 8mm |
Lead | 2mm |
| Total Length | 400mm |
Screw nut | |
| Material: | brass |
| Diameter | 8mm |
Mounted ball bearing | |
| Material | zinc alloy |
| Bore diameter | 5mm |
Hole diameter | 8mm |
| Total length | 55mm |
| Height | 29mm |
Shaft coupling | |
| Material | aluminium |
| Shaft | 6.35 x 8mm |
| Length | 24mm |
| Diameter | 18mm |
| Quantity | 1 set ( 1 screw 1 Screw nut 2 Mounted ball bearing 1 shaft coupling) |
Features
- Screw mainly used in stepper motors, machine tools, and other CNC equipment.
- Screw directly connected to bearing.
- Suitable for Industrial automation equipment, stepper motor rails, 3D printers, engraving machines, XYZ modules, slider, lifts etc.
1 x Lead screw
Resources
1. Put screw nut onto the Lead screw.
The AS3935 Franklin Lightning Detector gives you lightning detection for your next weather project. This sensor is capable of detecting lightning up to 40 km away with an accuracy of 1km to the storm front! On the product is a sensitive antenna tuned to pick up lightning events in the 500kHz band. When sensing an event the AS3935 utilizes an interrupt to the interrupt pin, distinguishes between false and real lightning events, and has a number of features to help calibrate lightning detection. For example, there are settings for detecting from indoors or detecting from outdoors, settings to change the threshold for false events, and settings to be alerted only after a certain number of lightning strikes to name a few. We've also written an Arduino Library to get you prepared for that upcoming storm!
The product is capable of communicating over SPI or I2C and sports a Qwiic connector for fast implementation without the need for soldering.
Fully Calibrated Digital Lighting Sensor AS3935 Lighting Detector Breakout Board Module SPI I2C Interface Strikes Thunder Rainstorm Storm Distance Detection Compatible for Arduino RPi
Features
- Wide Supply Voltage range : 2.4V - 5.5V
- Lightning Sensing: 40 km Range with accuracy of 1km in 14 steps
- Detects both cloud-to-ground and cloud-to-cloud flashes
- Embedded ‘man made’ disturbance rejection algorithm
- Programmable Detection Levels,Lightning detection thresholds are programmable (outdoor vs indoor, for example)
- Distance to storm estimation
- "Disturber" (false event) rejection algorithm
- Indoor and Outdoor Settings
- SPI and I2C Interfaces
- Qwiic Enabled
Application - DIY Weather stations
What's in the box?
1 x Lightning Detector sensor
Adding an aluminum alloy heat sink will increase the lifespan of your SSR relay, it will help dissipate the heat and protect your relay.
Solid State Relays are ideal for automatic process control application, a must component for temperature controller and other machinery control system.
Specifications
- Material: Aluminium alloy.
- Size: Roof:50mm x 60mm.Foot:80mm x 50mm.
- Height: 43mm.
- Weight: 96g
- Compatible with: Designed specially for single phase solid state relay.
- Colour: Silver
What's in the box?
1 x Solid state relay heat sink
This small adapter allows you to convert an existing micro USB power supply (like the official Raspberry Pi universal power supply for Raspberry Pi 1, 2 and 3) into a USB-C power supply.
Note that when a micro USB power supply is used, the maximum power that can be delivered to the Raspberry Pi 4 will be 12.5W. This means that less power will be available to devices connected to the USB 2.0 and USB 3.0 ports on the Raspberry Pi 4 than when using the new Raspberry Pi 15.3W USB-C power supply.
Specifications
• Female USB-B to Male USB-C adapter
• Compatible with Raspberry Pi 4 Model B (all variants)
• Carry on using your USB micro-B devices
What's in the box?
1 x USB micro-B to USB-C adapter
Specifications
- Material: Aluminum
- Colour: Sliver
Measurements
- 14mm x 14mm x 5mm
- 14mm x 9mm x 5mm
- 9mm x 9mm x 5mm(2 units)
What's in the box?
1 x set of Aluminum Heat Sinks
Specifications
- Material: Plastic and Metal
- Colour: White
- Length: 2.3cm
- Connector A: Micro USB Male
- Connector B: Type C Female
What's in the box?
1 X White Type C Female To Micro USB Male Adapter
The integration of Bluetooth, Bluetooth LE and Wi-Fi ensures that a wide range of applications can be targeted, and that the module is future proof: using Wi-Fi allows a large physical range and direct connection to the internet through a Wi-Fi router, while using Bluetooth allows the user to conveniently connect to the phone or broadcast low energy beacons for its detection. The sleep current of the ESP32 chip is less than 5 µA, making it suitable for battery powered and wearable electronics applications. ESP32 supports a data rate of up to 150 Mbps, and 22 dBm output power at the antenna to ensure the widest physical range. As such the chip does offer industry-leading specifications and the best performance for electronic integration, range, power consumption, and connectivity. The operating system chosen for ESP32 is freeRTOS with LwIP; TLS 1.2 with hardware acceleration is built in as well. Secure (encrypted) over the air (OTA) upgrade is also supported, so that developers can continually upgrade their products even after their release.
What's in the box?
1 x ESP32-WROVER 4MB Module
Resources





This sensor module is the most suitable to receive the ambient light data for adjusting LCD and other related projects. It is possible to detect wide range at High resolution.
The sensor is a calibrated digital light sensor that measures the intensity of the ambient light and stores it as a 16-bit number.
Specifications
- Type: GY - 302
- Size: 13.9 mm X 18.5 mm
- The original BH1750FVI ROHM chip
- Power supply: 3-5 V
- Data range: 0-65535
- Sensor built-in and bitad converter
- Direct digital output, bypassing the complicated calculation, omit calibration
- Do not distinguish between ambient light
- Close to the visual sensitivity of spectral characteristics
What's in the box?
1 x GY-302 Module
LCD control panel for 3D printers. LCD control panel through which you can achieve spooling as the 3D model Gcode files are copied to the SD card and then print the file via the LCD control panel. This version is an upgraded version of the reprap smart controller.

Features:
Using a large screen 12864LCD
With a SD card base on back, put your sliced file onto the SD card and select the file on the LCD. It can then can be printed
Product comes encoder to select the desired file
Plug and play on the RAMPS, but may need to modify the firmware to support
Specifications:
Screen size: 128x64
Cable Length (cm): 30
Input Supply Voltage: (VDC) 5
Length (mm): 93
Width (mm): 87


Package Includes:
1x LCD 12864 Smart Controller
1x Smart Adapter
2x 30cm FC Cable

This 3 pins toggle switch is great for any project where you have two options to select between. Maybe you'll be selecting between two voltages? Two audio outputs? Two sensor inputs? It's up to you! It's short, sweet, blue, and to the point! The part is marked at 3A 250VAC and 6A 125VAC but we haven't tested it at such high current/voltages and don't recommend it for more than 2A at 24V.
Features
- SPDT 3 Terminal ON-ON 2 - Position Latching Toggle Switch.
- Each switch is assembled with two hex nuts, a flat and a locking washer.
- Easy installation, fits into any 6mm hole.
- Stated Electrical Spec: 3A 250VAC or 6A 125VAC, but we recommend using it at 2A at 24V
What's in the box?
1 x 3 pins Toggle Switch
Compatible with: 80/20 20 Series, Misumi 5 Series, Openbuilds V-Slot, Openbuilds C-Beam, and other standard v-slot/t-slot 20mm aluminum extrusions
Specifications
- For the 2020 the size is 60mm x 60mm x 4mm, recommend to use M5 x10mm screw and M5 T nut
- Material: Aluminium
- Colour: Silver
- Aperture:M5
- Holes Spaced:20mm / 0.79 inch
- Thickness:4mm / 0.16 inch
- Dimensions: 60mm x 60mm /2.36 x 2.36 inch

What's in the box?
1 x bracket
It can easily cut all kinds of soft material below 1.2mm thickness. Wire under 0.8MM.
Suitable for cutting wires, electronic feet, trimming plastic parts etc.
What's in the box?
1 x electronic parts cutting pliers
Specifications
- Working current:5-15mA
- Eight electricity Level Resolution:10% 25% 40% 50% 60% 75% 90% 100%
- Voltmeter accuracy:1%
- Working temperature: -10 ~ 65 Celsius
- Operating Humidity: 10 ~ 80%
- Dimensions: 48mm x 29mm x 22mm
Indicator
- Battery voltage is greater than 11.1V, 1 led indicator is lit.
- Battery voltage is greater than 11.3V, 2 led indicator is lit.
- Battery voltage is greater than 11.6V, 3 led indicator is lit.
- Battery voltage is greater than 11.9V, 4 led indicator is lit.
- Battery voltage is greater than 12.2V, 5 led indicator is lit.
- Battery voltage is greater than 12.5V, 6 led indicator is lit.
- Battery voltage is greater than 12.9V, 7 led indicator is lit.
- Battery voltage is greater than 13.3V, 8 led indicator is lit.
What's in the box?
1 x lead acid LED indicator battery capacity tester voltmeter 12V
Specifications
- MC3/MC4 solar pv hand crimping tool
- For non-insulated open plug-type connector
What's in the box?
1 x crimping tool
Specifications
- Operating Current: 20A (4mm), 30A (6mm)
- Withstanding Voltage: DC1000V
- Contact resistance: <=>
- Insulation resistance:500MΩ
- For single-core cable cross-section: 1.5mm to 4mm
- Cable OD Range: Φ5mm ~ Φ 7mm
- Ambient temperature: -40 ° ~ 105 °
- Protection class: IP67
- Insulation material: PPO, Black
- Contact: Copper cn, sn Nickel
- Flammability rating: UL94-VO
- Terminal connection: Crimp
What's in the box?
1 x pair Y connector cables(M/M/F and F/F/M)
MC4 connectors are single-contact electrical connectors commonly used for connecting solar panels. The MC in MC4 stands for the manufacturer Multi-Contact and the 4 for the 4 mm diameter contact pin. MC4’s allow strings of panels to be easily constructed by pushing the connectors from adjacent panels together by hand and allow for a clean energy transfer between output cables from the solar array and connections to combiner boxes or inverters.
Specifications:
Water and dust proof.
Insulation material: GE PPO
Rated Voltage: TUV 1000 DC/ UL 600V DC
Test voltage: 6KV(50Hz,1Min)
Contact material: copper, tin plated
Contact resistance: less than 0.5 m ohm
Degree of protection: IP67
Pollution Degree: 2
Protection class: Class II
Flame class: UL94-V0
Plug Force: less than 50N
Withdrawal force: more than 50N
Ambient temperature range: -40 ~ 90.
Compatible cable cross sections Solar cable: 2.5mm⊃2; ,4.0 mm⊃2; and 6.0 mm⊃2; (14 awg,12awg,10awg)
Pin dimension: 4.0mm
Package Includes:
1 x pair 3 way split cables(MMMF and FFFM)
Specifications
- Light, small and easy to use
- Double - quick screw down.
- Saved time and manpower for installation.
- Size: 108mm x 30mm x41mm/4.25 x 1.18 x 1.61inch
What's in the box?
2 x MC4 spanners
This tiny but powerful 30mm fan can be used in any electronic projects, with MCUs, and even to keep your Raspberry Pi cool.
Now with a narrower form factor to fit a wider range of enclosures
Specifications
- Dimensions: 30x30x07mm
- Bearing Type: Sleeve
- Connector: 2PIN
- Rated Voltage: DC 5V, Rated Current: 0.1A
- Airflow: 4.2CFM
- Fan Blade: 7 Blades
- Fan Speed: 5000RPM±10%
- Noise Level: <16dBA±10%
What's in the box?
1 x DC Fan 30x30x7mm
Resources
3.3V connection to the GPIO on the left and 5V on the right.
