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The L293D Dual H-Bridge IC is able to run four solenoids, two DC motors or one bi-polar or uni-polar stepper motor, with up to 600mA per channel!
We found this little unit great to measure our incoming solar power versus outgoing battery load on a second unit
RJ45 Cat5e Straight Network Cable Ethernet LAN Coupler black (RJ45 coupler black)
- Quick and economical.
- Straight through configuration.
- This coupler allows two ethernet cables with RJ45 connectors to be connected together so that the signal will pass straight through.
- It is a cheap and simple way to extend network cables and is ideal for moving networked computers without uprooting existing cables.
- Single Size: Approx.34x21x16mm
What's in the box?
1 x RJ45 Straight Through Ethernet LAN Cable coupler
Cables are not included
LJ12A3-4-Z/BX NPN DC6-36V Inductive Proximity Sensor Detection Switch (LJ12A3-4-ZBX NPN)
Proximity switch, also known as non-contact proximity switch, is the ideal electronic switch sensor. Used for detecting metal in proximity. It does not require any contact or pressure. It will accurately reflect the position of a moving mechanism. The proximity switch is easy to install, adjustable, and suitable for harsh environments.
Specifications
- Model : LJ12A3-4-Z/BX
- Operating Voltage : DC 6-36V
- Output Type : NPN
- Output Status : Normally Open
- Detection object : metal objects
- Detection distance : 4 mm
- Output Current : 300 mA
- Response Frequency : 0.5KH
- Working temperature : Temperature range -30 ° to 60 °
- Dimensions : 12 mm screw diameter
- Cable length : about 115 cm
- Material : Metal and plastic
What's in the box?
1 x LJ12A3-4-Z/BX NPN Sensor Detection Switch
Resources
Brown - Live
Blue - Ground
Black - Signal
UNO R3 SMD (CH340G) MEGA328P for Arduino UNO R3 + USB CABLE ATMEGA328P-AU Development board (UNO SMD IC extras)
UNO R3 is a microcontroller board based on the ATmega328P.
The Arduino Uno R3 comes in two models; the normal version and the SMD version. In the SMD version you have the Atmega328 controller IC as an SMD chip soldered into the board, whereas in the normal version the IC is held on the Arduino by an IC Holder.
Features
- 14 digital input/output pins (of which 6 can be used as PWM outputs)
- 6 analog inputs
- a 16 MHz quartz crystal
- a USB connection
- a power jack
- an ICSP header
- a reset button.
It contains everything needed to support the microcontroller. Simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.
What's in the box?
1 x Arduino Uno SMD
1 x Headers
1 x USB cable (Cable colour might differ prom product pic)
Resources
Getting started with Arduino products
Product introduction
UNO R3 is a microcontroller board based on the ATmega328P.
The Arduino Uno R3 comes in two models; the normal version and the SMD version. In the SMD version you have the Atmega328 controller IC as an SMD chip soldered into the board, whereas in the normal version the IC is held on the Arduino by an IC Holder.
Features
- 14 digital input/output pins (of which 6 can be used as PWM outputs)
- 6 analog inputs
- a 16 MHz quartz crystal
- a USB connection
- a power jack
- an ICSP header
- a reset button.
It contains everything needed to support the microcontroller. Simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.
What's in the box?
1 x Arduino Uno SMD
1 x Headers
1 x USB cable (Cable colour might differ prom product pic)
Resources
Getting started with Arduino products
40 PIN IDC SOCKET CABLE MOUNT HEADER (40-PIN IDC SOCKET)
These electrical connectors are designed for ribbon cables and telecommunications applications. They are also referred to as insulation-piercing contacts (IPCs).
Specifications
- 40 Pins Male Standard 0.1" 2.54mm Row spacing
- Low Profile with mounting ears
- 0.1" Pin spacing 0.1" Row spacing, Mates with IDC & PCB male Receptacles
- Insulation Displacement Connector terminates to 0.050" (1.27mm) flat ribbon cable
What's in the box?
1 x 40-PIN IDC SOCKET CABLE MOUNT
DS3231 Mini RTC Module (Real Time Clock) (rtc)
This is a Mini Real-Time Clock module, it's design for the Raspberry Pi, but it can also be used with an Arduino.
Simply plug this tiny module into the GPIO header on the Raspberry Pi and away you go!
Specifications
- DS3231 RTC IC
- Self-adjust 3.3V and 5V
- Size: 14mm x 14mm x 12 mm
Features
- Smaller
- Work in 3.3V and 5V
- Supported Raspberry Pi and Arduino
What's in the box?
1 x RTC Module
1 x Battery
Resources
4X4 MATRIX ARRAY MEMBRANE KEYPAD (4x4 keypad matrix)
What's in the box?
1 x 4x 4 Matrix Array Membrane Keypad
Resources
This flexible 4x4 matrix keypad is connected to an 8 pin DuPont Female connector. It can be attached to a surface via the adhesive back by removing the white protective paper backing.
- Contact Resistance: 10Ω-500Ω
- Insulation Resistance: 100MΩ 100V
- Key Operating Force: 150-200N
- Circuit Rating: 35V DC, 100mA, 1W
- Dielectric Strength: 250V RMS (50-60HZ/Min)
- Electric Shock Jitter: ï¼ÂÂÂ5ms
- Operating Temperature: -40 deg. C ~ 80 deg. C
- Storage Temperature: -40 deg. C ~ 80 deg. C
- Vibration: 20G, max
- Size: 68mm x 76mm
What's in the box?
1 x 4x 4 Matrix Array Membrane Keypad
Resources
FR-4 Double Side Prototype PCB Printed Circuit Board kit (prototype board kit)
Standard Prototype PCB is great for prototyping and building circuits but it can be time consuming to use with components with certain pin configurations such as IC's.
These boards are especially useful for preserving a prototype or experiment you just created on a solderless breadboard by soldering all the pieces in place.
These boards are especially useful for preserving a prototype or experiment you just created on a solderless breadboard by soldering all the pieces in place.
Specifications
- Grid : 0.1" (2.54mm)
- Thickness : 1.6mm(5pcs)
- Hole diameter : about 1mm
- Material : FR-4 (glass fiber)
- All holes are plated through
- Both sides are identical
Dimensions Hole(column x row)
50 x 70mm, 1.97" x 2.76" 24 x 18
40 x 60mm, 1.57" x 2.36" 20 x 14
30 x 70mm, 1.18 x 2.76" 24 x 10
20 x 80mm, 0.79" x 3.15" 28 x 6
What's in the box?
4 x FR-4 Double Side Prototype PCB Printed Circuit Board
Resources
Introduction to soldering
Video: How to solder properly
The secrets to good soldering
Resources
Introduction to soldering
Video: How to solder properly
The secrets to good soldering
MS Weather Station Anemometer for windspeed (MS anemometer)
MS Anemometer as used in the Raspberry Pi foundation weather station project to measure windspeed.
Hack this component to form part of your weather station.
Specifications
What's in the box?
1 x Anemometer
Resources
Hack this component to form part of your weather station.
Specifications
| Sensor | 3-cup anemometer |
| Measurement Description | Wind speed |
| Range | 0 to 45 m/s (0 to 100 mph) |
| Starting Threshold | 0.45 m/s (1.0 mph) |
| Accuracy | 0.11 m/s (0.25 mph) or 1.5% |
| Contact Rating | 10 mA (maximum) |
| Operating Temperature Range | -50° to 70°C |
| Distance Constant |
|
| Cable Description | Quick-connect connector with vinyl jacketed, shielded cable |
What's in the box?
1 x Anemometer
Resources
L293D Dual H-Bridge IC - Solenoid, DC & Stepper Motor Driver (L293D IC H-bridge)
The L293DNE Dual H-Bridge IC is able to run four solenoids, two DC motors or one bi-polar or uni-polar stepper motor, with up to 600mA per channel!
Each chip contains two full H-bridges (four half H-bridges) which means you can drive four solenoids, two DC motors bi-directionally, or one stepper motor. Just make sure they're good for under 600 mA since that's the limit of this chip. They do handle a peak of 1.2A but that's just for a short amount of time. What we like most about this particular driver is that it comes with built in kick-back diodes internally so you dont have to worry about the inductive kick damaging your project or driver
Features
- Dual H-Bridges - run four solenoids, two DC motors, or one uni-polar or bi-polar stepper motor
- Output Current: 600mA per channel (1.2A Max)
- No of Channels: 4
- Input: 5V Logic
- Supply Voltage Range: 4.5V to 36V
- No. of Pins: 16
- Operating Temperature Range: 0°C to 70°C
What's in the box?
Tutorials
Controlling a Stepper Motor with the L293D
The L293D Dual H-Bridge IC is able to run four solenoids, two DC motors or one bi-polar or uni-polar stepper motor, with up to 600mA per channel!
5V Monocrystalline 1W Mini Solar Panel (5V 1W solar panel)
Build Your DIY Powered Models,Solar Display and Solar Toys. This 5V solar panel is lightweight, and durable, making it perfect for any small on the go project.
Specifications
What's in the box?
1x 5V Solar panel
Specifications
- Power: 1W
- Voltage: 5V
- Material:Monocrystalline Silicon
- Size: 60x110mm
What's in the box?
1x 5V Solar panel
Ideal for your dc electronic projects.
Raspberry Pi Camera Board Replacement Cable 1000mm (Cam csi cable 1000mm)
Please note: This cable is not suitable for use with RPi5 or the Zero boards. You will need a different version CSI cable
The Raspberry Pi Camera Module comes fully assembled with a 15-Way 1000mm flat, flex cable that plugs directly in the Raspberry Pi CSI port. Unfortunately the included cable is quite fragile, and can break if twisted or bent too far.
The Raspberry Pi Camera Module comes fully assembled with a 15-Way 1000mm flat, flex cable that plugs directly in the Raspberry Pi CSI port. Unfortunately the included cable is quite fragile, and can break if twisted or bent too far.
Don't worry though, not all is lost if that cable does happen to break! Replacement raspberry pi camera board cables are available and it's very easy to swap them over!
This replacement cable is 1000mm long.
Features
Features
- Direct Replacement for the Raspberry Pi Camera Board Cable
- 1000mm Overall Length
- 1mm Pitch
- 15 Way Flat Cable
- Conductor: Tin plated copper
- Insulation: White PVC
- Supporting tape: Blue polyester
- UL rating: UL2896
- Temperature rating: 80°C
- Voltage: 30V
- Flame test: VW-1, FT1, FT2
- CSA Standard: CAN/CSA-22.2 No.210.2
What's in the box?
1 x CSI cable
Mini Round Red 2 Pin SPST ON-OFF Rocker Switch (round red rocker switch)
Rocker Switches house a button for operation that can be pressed on either end like a seesaw to connect or disconnect an electrical circuit. They are often used as ON/OFF switches on the main power supplies for electronic devices.
Features
What's in the box?
1 x Mini round red rocker switch
Resources
Introduction to Buttons and Switches
Types of buttons and switches
Features
- Rating: 3A 250V
- Mounting hole: 20mm
- Poles: SPST
- Terminal: 2-Pin(ON-OFF)
- Contact resistance: ≤30mΩ
- Insulation resistance: ≥100MΩ at 500V DC
- Dielectric strength: 1500V AC for 1 minute
- Operating temperature: -25°C - 85°C
- Electrical life: 10000 cycles
- Colour: black / red
What's in the box?
1 x Mini round red rocker switch
Resources
Introduction to Buttons and Switches
Types of buttons and switches
Dual USB Output 6-24V To 5.2V 3A DC-DC Step Down Power Converter (Dual USB 3A green step down)
If you love to power your projects with convenient 5V USB, then this DC-DC Step-Down Buck Module with Dual USB 5V 3A Output is an ideal choice!
Dual USB Output Buck Power Supply Adapter For Car Auto Cellphone MP3 and much more!
Specifications
- Model:usb1002
- Name: Power Module
- Features: Buck Charge
- Product size: 33mm x 33mm x 8mm
- Input voltage range: 6-24V
- Output voltage: 5.2V (the output terminal is 5.3-5.4V, the load side is 5.1-5.2V)
- Output Current: 3A (without heat sink, the stability of the output current is 2A)
Important Notes
- The input voltage can not exceed 24V, otherwise it will cause damage to the device!
- The input positive and negative can not be reversed, otherwise it will cause damage to the device!
- You will only be able to make use of the 3A current rating at higher input voltages!
What's in the box?
1 x Dual USB Power Module
5.5V 4F H Style Super Capacitor 24.6 x 6mm (5.5V 4F super cap coin)
The super capacitor is used for energy storage undergoing frequent charge and discharge cycles at high current and short duration.
Specifications
What's in the box?
1 x 5.5V 4F capacitor
Resources
Theory
Introduction
Types
Specifications
- Type: 5.5V 4.0F super capacitor H (Horizontal) Style
- Withstand voltage: 5.5V
- Capacitance: 4F
- Temperature range: -40 ℃ ~ 70 ℃
- Low ESR fast charge only few seconds
- Large current discharge
- Green pollution-free
- Wider practicability for solar, wind and other hobby projects
- Safe and easy to use
- No maintenance
- Size: 24.6 x 6mm
What's in the box?
1 x 5.5V 4F capacitor
Resources
Theory
Introduction
Types
110/220V 60W 12V 5A Miniature Switching Power Supply (Mini 12V5A power supply)
A switching power supply is one of the two major types of power supply design utilized in electronics products. These power supplies are characterized by the use of precise switching that allows for designs to accommodate DC to DC, DC to AC, AC to DC and frequency conversions.
In switching power supply designs, the input voltage is no longer reduced; instead, it's rectified and filtered at the input. Then the voltage goes through a chopper, which converts it into a high-frequency pulse train. Before the voltage reaches the output, it's filtered and rectified once again.
Specifications
- Input Voltage: AC110V/220V±15%
- Ouput Voltage: DC 12V
- Output Current:5A
- Shell Material: Metal case
- Safety Compliance: FCC / CE
- High price-effective, reliability with industry standards
- Built-in over voltage, over current, and short circuit protection
- Working Temperature: 0~40C
- Storage Temperature: -20~60C
- Ambient Humidity: 0~95% Non-Condensation
Features
- Switch power supply, convert AC 110V/240V to 12V
- Wide input voltage range, steady and precise output voltage.
- Shortage protection, overload protection over voltage protection.
- Widely used as the power adapter for Led strip, LED display, billboard, industrial equipment, etc.
Please note: INDOOR USE ONLY!
What's in the box?
1 x 12V 5A power supply
1.75mm Brass Feed Extruder Wheel Drive Gear For Reprap 3D Printer (1.75mm feed wheel)
Description:
These drive 40 teeth gears are made of quality brass, rustproof and no corrosion, durable and stable to use, with good bearing capacity. Fits a large range of 3D printers
Specifications:
- Material: brass
- Color: golden
- Model: reprap
- Operation temperature: 250°
- Style: 1.75mm
- Installation: female connection
- Used for 1.75mm filament
Package includes:
1x Feed Wheel
These drive 40 teeth gears are made of quality brass, rustproof and no corrosion, durable and stable to use, with good bearing capacity. Fits a large range of 3D printers
Specifications:
- Material: brass
- Color: golden
- Model: reprap
- Operation temperature: 250°
- Style: 1.75mm
- Installation: female connection
- Used for 1.75mm filament
Package includes:
1x Feed Wheel
130A High Precision DC Watt Meter And Power Analyzer (DC Power analyzer)
We found this little unit great to measure our incoming solar power versus outgoing battery load on a second unit
Usage Examples
How Much Power Does my Fridge Use - with the Battery connected to the SOURCE side and Car Fridge (or other accessory) connected to the LOAD side. The Watt Meter shows the current into the Fridge, voltage and power at the battery and accumulates the Ah and Wh while the fridge is running.
How much charge is going into my battery - With a battery charger (or alternator) connected to the SOURCE side and the aux battery connected to the LOAD side, the Watt Meter shows the charging current into the battery, the voltage and charging power at the battery and accumulates the charge (Ah) and energy (Wh) into the battery.
What is the output of my solar panel - With a solar panel connected to the SOURCE side and solar regulator connected to the LOAD side, the Watt Meter shows the charging current into the regulator, the voltage and charging power at the solar panel and accumulates the charge (Ah) and energy (Wh) into the regulator.
How much charge is my solar panel putting into my battery - Now with a solar regulator connected to the SOURCE side and battery connected to the LOAD side, the Watt Meter shows the charging current into the battery, the voltage and charging power at the regulator and accumulates the charge (Ah) and energy (Wh) into the battery.
Specifications
What's in the box?
1x 130A High Precision Battery Watt Meter And Power Analyzer
Resources
English Manual please click here
Usage Examples
How Much Power Does my Fridge Use - with the Battery connected to the SOURCE side and Car Fridge (or other accessory) connected to the LOAD side. The Watt Meter shows the current into the Fridge, voltage and power at the battery and accumulates the Ah and Wh while the fridge is running.
How much charge is going into my battery - With a battery charger (or alternator) connected to the SOURCE side and the aux battery connected to the LOAD side, the Watt Meter shows the charging current into the battery, the voltage and charging power at the battery and accumulates the charge (Ah) and energy (Wh) into the battery.
What is the output of my solar panel - With a solar panel connected to the SOURCE side and solar regulator connected to the LOAD side, the Watt Meter shows the charging current into the regulator, the voltage and charging power at the solar panel and accumulates the charge (Ah) and energy (Wh) into the regulator.
How much charge is my solar panel putting into my battery - Now with a solar regulator connected to the SOURCE side and battery connected to the LOAD side, the Watt Meter shows the charging current into the battery, the voltage and charging power at the regulator and accumulates the charge (Ah) and energy (Wh) into the battery.
Specifications
| Item Name | Watt Meter and Power Analyzer |
| Item NO. | FT08 |
| Operation Voltage | 4.8V-60V |
| Measures Range | 0-130A, resolution 0.01A; 0-60V, resolution 0.01v; 0-6554W, resolution 0.1w; 0-65Ah,resolution 0.001An; 0-6441Wh,resolution 0.1Wh; |
| LCD | 16 x 2, backlit LCD display |
| Size | 85 mm x 43 mm x 25 mm (3.35 in x 1.69 in x 0.98 in) |
| Weight | 82g |
| Colour | Black |
What's in the box?
1x 130A High Precision Battery Watt Meter And Power Analyzer
Resources
English Manual please click here
We found this little unit great to measure our incoming solar power versus outgoing battery load on a second unit
100A 22000W Power Monitor Module AC Meter Panel 45-65Hz Test Voltage AC 80-260V (AC power meter clamp)
What's in the box?
Note:
1. This module is suitable for indoor use only.
2. Applied load can not exceed the rated power.
3. The wiring order can not be wrong.
4. This is an entry level measuring solution. Do not expect 100% accuracy.
4. This is an entry level measuring solution. Do not expect 100% accuracy.
| Product Type | PZEM-022 |
| Accuracy | 1.0 grade |
| Display Size | 51mm x 30mm |
| Product Size | 89.6mm x 49.6mm x 24.3mm |
| Weight | 150g(with split CT) |
| Test Range | 1. Voltage: 80~260V 5. Frequency: 45~65Hz 6. Power factor: 0~1PF |
| Function | 1. Electrical parameter measurement function (voltage, current, active power, energy, frequency, power factor) 2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm). 3. Power alarm threshold preset function (can set power alarm threshold). 4. The energy can be reset use the key. 5. Store data when power off. 6. Large-screen LCD 7. Backlight function. |
What's in the box?
1 x 100A Power Monitor Module AC Meter Panel
1 x CT
Resources
FAQ
Why is the test data wrong? Voltage * Current = Power, But power is less than the actual test voltage * Current, Why is that?
Answer: There are three types of power:
Active Power (P represents / unit W)
Reactive power (Q represents / unit Var)
Apparent power (S represents / unit VA)
Here we only talk about Active Power, for others, please google it:
P = U * I * cosφ, cosφ it represents the power factor, purely resistive load (Such as incandescent, heater, etc.) the power factor is generally close to 1,Between the inductive and capacitive load load power factor 0-1. So purely resistive load test time, P is substantially equal to or close to U * I. When Inductive or capacitive load test (Such as refrigerators, washing machines, televisions, computers, etc.) P<U*I, As for how much to keep the power factor related to the specific, Different for each appliance power factor.
1 x CT
Resources
FAQ
Why is the test data wrong? Voltage * Current = Power, But power is less than the actual test voltage * Current, Why is that?
Answer: There are three types of power:
Active Power (P represents / unit W)
Reactive power (Q represents / unit Var)
Apparent power (S represents / unit VA)
Here we only talk about Active Power, for others, please google it:
P = U * I * cosφ, cosφ it represents the power factor, purely resistive load (Such as incandescent, heater, etc.) the power factor is generally close to 1,Between the inductive and capacitive load load power factor 0-1. So purely resistive load test time, P is substantially equal to or close to U * I. When Inductive or capacitive load test (Such as refrigerators, washing machines, televisions, computers, etc.) P<U*I, As for how much to keep the power factor related to the specific, Different for each appliance power factor.
125KHz Serial UART RFID Card Reader (125KHz Serial card reader)
This is a radio frequency ID card reader module that can read the ID card's serial numbers. It can help to design intelligent access control systems. When the module sensed ID card, it will convert the card number into a 9-digit hexadecimal number, each digit of which will be converted into ASCII code. Then it adds a starting byte and 5 other bytes, so a total of 15 bytes output to the serial port. You can convert it into a decimal number that is the serial number engraved on the ID card.
Features
What's in the box?
1 x 125KHz Serial UART RFID Card Reader
Resources
Features
- Support Card Type: Read-only ID cards (such as EM4100, EM4001, etc.)
- Working voltage: 4.5~5.5VDC
- Working current: 40mA (max)
- Working frequency: 125KHz
- Reading distance: 2~5cm
- Logic Interface: UART TTL serial port
- Communication format: 8N1
- Baud rate: 9600
- Induction coil: pluggable
- Coil size: 35X40mm
- Coil lead length: 15cm
- Great for DIY
- Applications: Access control systems, Attendance system
What's in the box?
1 x 125KHz Serial UART RFID Card Reader
Resources
- Interfacing with ESP32, Arduino and NodeMCU
- Interfacing with Raspberry Pi
40x40x10mm 24V Nozzle Cooling Fan For 3D Printer Ender-3 (fan 24V 40x40x10)
High speed 24V cooling fan most commonly to replace failing 3D printer fans. It is a classic cooling fan for 3D Printing
Specifications
What's in the box?
1 x Creality 3D® cooling fan
Specifications
- Size: 40mm x 40mm x 10mm
- Voltage: DC 24V 0.1A
- Cable length: 200mm
- Application: For 3D Printer Ender-3
What's in the box?
1 x Creality 3D® cooling fan