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We found this little unit great to measure our incoming solar power versus outgoing battery load on a second unit
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
Serial Port WIFI ESP8266 Module Adapter Plate With IO Lead Out For ESP-07 ESP-08 ESP-12 (ESP breakout board)
This Adapter Plate is for ESP07 ESP08 ESP12, a test board with IO lead out.
Please Note:
You will need to solder 3V regulator by yourself.
ESP07, ESP08, ESP12 module boards, or voltage regulator are not included.
What's in the box?
1 x Serial Port WIFI ESP8266 Module Adapter Plate
2 x Pin headers
Please Note:
You will need to solder 3V regulator by yourself.
ESP07, ESP08, ESP12 module boards, or voltage regulator are not included.
What's in the box?
1 x Serial Port WIFI ESP8266 Module Adapter Plate
2 x Pin headers
4 In 1 Charger Discharger Boost 5V 2.1A Module for 3.7V 4.2V Battery DIY Mobile Power with Button (charge/discharge power module)
trigger: input LOW(grounding)
Single Chip Using: If Small load KEY connect 20S single chip and supply with input LOW, the module will work well.
Specifications
About module pins
1 VIN: charge port
2 GND: charge port -
3 BAT: Battery
4 GND: Battery -
5 GND: output -
6 VOUT: output
7 KEY: trigger
Note:
1. In discharging mode(charging mode KEY function invalid), trigger KEY one time,output open; trigger two times, output close.
2. Output will open automatically if you connect load. If load below 50MA, the module will turn off output port; if load over 50MA, output port will always open.
3. Allow charging and discharging at the same time(output voltage should below 5V. Stop charging and stop discharging,you should reactivation the module.)
What's in the box?
1 x power module
1 x button
Resources
1. Charge/Discharge: All cables
2. Charge: Connect power supply and battery
3. Discharge: Connect battery and output
Single Chip Using: If Small load KEY connect 20S single chip and supply with input LOW, the module will work well.
Specifications
- Charge voltage: DC 4.5V-5.5V(Recommend DC 5V)
- Charging current: 0-2.1A
- Charge quiescent current: 100uA
- Full charge voltage: 4.2V -1%
- Discharge current: 0-2.4A
- Discharge quiescent current:50uA
- Discharge conversion efficiency: MAX 96%
- Output voltage: 5V
- Output current: 0-2.4A
- Operating ambient temperature: -20°to 85°
- Size: 25x16x4mm
- Weight: 2.3g
- PCB board design: Immersion Gold
- Battery protection: OCP/OVP/SCP/OTP
About module pins
1 VIN: charge port
2 GND: charge port -
3 BAT: Battery
4 GND: Battery -
5 GND: output -
6 VOUT: output
7 KEY: trigger
Note:
1. In discharging mode(charging mode KEY function invalid), trigger KEY one time,output open; trigger two times, output close.
2. Output will open automatically if you connect load. If load below 50MA, the module will turn off output port; if load over 50MA, output port will always open.
3. Allow charging and discharging at the same time(output voltage should below 5V. Stop charging and stop discharging,you should reactivation the module.)
What's in the box?
1 x power module
1 x button
Resources
1. Charge/Discharge: All cables
2. Charge: Connect power supply and battery
3. Discharge: Connect battery and output
65mm x145mm Veroboard Uncut Single Sided Circuit Board 5 pack (vero board(5))
Strip board is Ideal for development and prototype work, Veroboard is intended primarily for wiring discreet components, particularly in analogue circuits.
Specifications
What's in the box?
5 x DIY Prototype PCB Board
Resources
Introduction to soldering
Video: How to solder properly
The secrets to good soldering
Specifications
- Type: Single Sided
- Base Material: Bakelite
- Thickness: approx. 1.5mm
- Hole Pitch: approx. 2.54mm
- Hole Diameter: approx. 1.0mm
- Size: approx. 65mm x 145mm
What's in the box?
5 x DIY Prototype PCB Board
Resources
Introduction to soldering
Video: How to solder properly
The secrets to good soldering
Avoidance tracking Smart Robot Car Chassis Kit Speed Encoder Battery Box 2WD Ultrasonic module For Arduino kit (Aduino robot car)
Please Note: Some drilling will be required. You might need to add a few standoffs and screws to build it the way you want it.
This complete robot car kit includes the arduino as well. Just add batteries and code. Great for beginners to learn how to code using sensors and motion on the Arduino boards
What's in the box?
1 x Car chassis
2 x Car Wheels
2 x DC Gear Motor
2 x 20 line gun code disk
4 x Fasteners (high intensity black acrylic)
1 x Caster wheel
1 x Four battery box
1 x Quality Rocker Switch
1 x Assembly drawing
1 x V5 shield
1 x UNO R3
1 x SG90
1 x FPV
1 x L298N
Several screws and nuts
Resources
Pdf manual available at http://www.cs.columbia.edu/~sedwards/presentations/robot-car-instructions.pdf
Get more details at https://create.arduino.cc/projecthub/hda-robotics/project-1-2wd-obstacle-avoiding-robot-390ef8
This complete robot car kit includes the arduino as well. Just add batteries and code. Great for beginners to learn how to code using sensors and motion on the Arduino boards
What's in the box?
1 x Car chassis
2 x Car Wheels
2 x DC Gear Motor
2 x 20 line gun code disk
4 x Fasteners (high intensity black acrylic)
1 x Caster wheel
1 x Four battery box
1 x Quality Rocker Switch
1 x Assembly drawing
1 x V5 shield
1 x UNO R3
1 x SG90
1 x FPV
1 x L298N
Several screws and nuts
Resources
Pdf manual available at http://www.cs.columbia.edu/~sedwards/presentations/robot-car-instructions.pdf
Get more details at https://create.arduino.cc/projecthub/hda-robotics/project-1-2wd-obstacle-avoiding-robot-390ef8
Micro/Mini/Standard HDMI to VGA Adapter for RPi Zero/3/4 (HDMI VGA adapter kit)
Perfect solution for all HDMI devices that need to connect to VGA devices. This product is a portable digital-analog conversion line, defined through All HDMI input sources. The HDMI to VGA Adapter allows for a connection to VGA monitors and projectors supporting a maximum resolution of 1920X1080
Widely used for: Computer / DVD / digital set-top box / laptop / mobile phone / digital camera / Table PC / media player / a range of HD sources such as input devices. Video signals to the TV / monitor / projector output. To solve a simple user operation of the display device connectivity solutions.
Specifications
What's in the box?
1 x HDMI to VGA Cable (male to female LENGTH=20CM)
1 x Micro HDMI Male to HDMI Female Adapter
1 x Mini HDMI Male to HDMI Female Adapter
Widely used for: Computer / DVD / digital set-top box / laptop / mobile phone / digital camera / Table PC / media player / a range of HD sources such as input devices. Video signals to the TV / monitor / projector output. To solve a simple user operation of the display device connectivity solutions.
Specifications
- Flexible and functional
- No external power supply needed, plug and play
- Product resolution can be up to 720P/1080i/1080P
- Input: HDMI Mini, HDMI Micro or HDMI
- Output: VGA
What's in the box?
1 x HDMI to VGA Cable (male to female LENGTH=20CM)
1 x Micro HDMI Male to HDMI Female Adapter
1 x Mini HDMI Male to HDMI Female Adapter
USB to RS485 Converter Adapter (USB RS485 converter)
Features
Applications
All kinds with RS485 port device parameter settings , data communication
Short distance , such as parameter settings of the computer peripheral equipment , the use of common data lines eg:
• LED display of communication data
• Machine PLC data reading and writing
• Monitoring data read and write , and PTZ control
• centralized control of household electrical appliances
• Access Control System ; card
• a variety of industrial automation ; instrumentation
• Parking ; bus fees
• Dining Hall ; staff attendance
• highway toll station; ATM machine
What's in the box?
1 x USB to RS485 Converter
- USB connector: USB A
- No need external power, powered by USB port
- Fully compliant USB 2.0 standard , backward compatible with USB1.1
- Support System: Windows XP , Vista, Windows 7 , Linux , MacOS , and WinCE5.0 drive
- Supports baud rate range : 75bps - 115200bps , up to 6Mbps
- Work temperature range: -40°C ~ 85°C
- Communication distance :1200m(max)
- Dimensions:61mm x 16mm x 13mm
- Colour: Black
Applications
All kinds with RS485 port device parameter settings , data communication
Short distance , such as parameter settings of the computer peripheral equipment , the use of common data lines eg:
• LED display of communication data
• Machine PLC data reading and writing
• Monitoring data read and write , and PTZ control
• centralized control of household electrical appliances
• Access Control System ; card
• a variety of industrial automation ; instrumentation
• Parking ; bus fees
• Dining Hall ; staff attendance
• highway toll station; ATM machine
What's in the box?
1 x USB to RS485 Converter
DC Power Cable 5.5 x 2.1mm Male To 5.5 x 2.1mm Male 1000mm (DC m2m 5.5mm cable)
Great for short distance DC connections
Specifications
- Supports maximum current 3A
- Material: PVC
- Length: 1000mm(approx)
- Colour: Black
What's in the box?
1 x DC 5.5 x 2.1mm Male To 5.5 x 2.1mm Power Cable
Aluminium Heatsink Flared 14x14x6mm blue (Flared blue heatsink)
This heatsink comes with 3M thermal conductive tape.
Specifications
What's in the box?
1 x heatsink
Note:
Heatsinks conduct electricity. When installing your heatsink make sure it isn't in contact with anything else. It could cause a short circuit and kill your board.
Specifications
- Material: Aluminum & Heat Conductive Tape
- Bottom Size: 14mm x 13mm
- TopSize: 18mm x 13mm
- Height: 6mm
- Weight: 1.4g
What's in the box?
1 x heatsink
Note:
Heatsinks conduct electricity. When installing your heatsink make sure it isn't in contact with anything else. It could cause a short circuit and kill your board.
13.56MHz RFID Tag For Access System 5 colours (13.56 RFID tag 5 colours)
This is a basic 13.56 MHz RFID tag, great for security and access control projects.
RFID is an acronym for “radio-frequency identification” and refers to a technology whereby digital data encoded in RFID tags or smart labels
Features
Specifications
Typical applications
Enterprise / campus access cards, parking, district management,attendance systems, patrol systems, enterprise systems, access control systems, radio frequency identification field etc.
What's in the box?
5 x 13.56MHz RFID tags
RFID is an acronym for “radio-frequency identification” and refers to a technology whereby digital data encoded in RFID tags or smart labels
Features
- Small and durable
- Waterproof, shockproof, anti-corrosive.
- Keyring for easy carrying.
Specifications
- Main Chip : Fudan F08 compatible S50
- Colour : Blue,Yellow, Black, Green, Red
- Size : Approx. 40.5×32×4.2mm
- Operating Frequency : 13.56 MHz
- Communication speed : 106K Boud
- Read and write distance : 2.5 ~ 10cm
- Read and write time : 1 ~ 2ms
- Operating Temperature : -20 ℃ ~ 85 ℃
- Endurance :> 100,000 times
- Storage capacity : 8Kbit, 16 partitions, each partition with 2 group passwords
Typical applications
Enterprise / campus access cards, parking, district management,attendance systems, patrol systems, enterprise systems, access control systems, radio frequency identification field etc.
What's in the box?
5 x 13.56MHz RFID tags
Solar Panel Physical Science Experiment Educational Kit (Solar edu kit)
Cool and basic solar science experiment for the beginner. Simply connect the parts and see the magic of solar power.
What's in the box?
1 x Connection board with solar panel
1 x Connection board with Motor
1 x Jumper cables for connection boards
1 x Propeller (Colour of propeller is random)
What's in the box?
1 x Connection board with solar panel
1 x Connection board with Motor
1 x Jumper cables for connection boards
1 x Propeller (Colour of propeller is random)
Raspberry Pi GPIO Screw Terminal Board Header For Raspberry Pi (Gpio Terminal rpi header)
Features
What's in the box?
(* Raspberry Pi NOT included - ONLY GPIO screw terminal*)
(* Raspberry Pi NOT included - ONLY GPIO screw terminal*)
- Tiny size & solidly built
- Well made terminal block
- Legible miniscule printing of the labels of each of the GPIO pin's function
- Secure connection to the Raspberry Pi
What's in the box?
1 x Terminal block
1 x Screwdriver
1 x Acrylic board
2 x Nuts
2 x M2.5x11 brass standoffs
4 x M2.5x5 6 brass standoffs
6 x Screws
Resources
Wiki - Raspberry Pi GPIO Terminal Board
(* Raspberry Pi NOT included - ONLY GPIO screw terminal*)
(* Raspberry Pi NOT included - ONLY GPIO screw terminal*)
Dual USB 5V 2.4A Type-C LED USB Mobile Power Bank 18650 Charging Module (mobile power bank charging)
This module is the perfect starting point if you are looking to build your own power bank.
This module is ideal for 18650 batteries, 65mm long with the flat top. In the event that you use:
- old batteries
- different capacities
- differnet brands
Please ensure that they are at least above 3.5V each
Not ideal to be used on batteries that have been too far depleted.
After the battery is installed, plug in the charger to activate the battery before use.
The real world conversion rate of a new "real capacity" battery is about 80%. Because there is a line loss of the connection line. Estimation of mixed batteries or "budget" batteries are near impossible to estimate.
For peak use, first allow the battery to fully discharge before charging it.
Note: Reversing the polarity of the battery will burn the module.
Specifications
- Switch Charging
- Internal 2A charging current
- Charging efficiency up to 90% @ 2A
- Charging swtch frwquency 1MHz
- Trickle/constant current/constant voltage three-stage charging
- Charging current Adaptive adapter function
- Charging current Temperature adjustment function, charging current automatically decreases with the increase of temperature
- C/10 charging terminates
- Intergrated charge overvoltage protection and battery overtemperature protection
- Synchronous boost output 5.1V
- Discharge switch frequency 50OKHz
- Discharge efficiency up to 94%
- Automatic identifiation of load, load automatically shut off
- Original boost output heat regulation function
- Protection of over current, short circuit, over voltage and over tepmperature of discharge module
- Long press the switch, wake up the motherboard, charge the charging time of the phone, press the switch, the output can be turned off, the motherboards stops working.
- MaIn board size: Thickness 9 * Width 25 * length 67 mm
What's in the box?
1 x Power bank type charging module
Precision Buck Converter AC 220V to 5V DC 2A 10W step down power supply module (220AC to 5DC 2A 10W)
This power supply is a isolated industrial grade built-in power module with temperature, over current, and short circuit protection.
Features
What's in the box?
1 x AC-DC Voltage Converter
Features
- Input Voltage: AC85 - 264V
- DC 5V 2A 10W isolated output
- Input Current: 0.0273A/115VAC 0.014A/230VAC
- Input surge current: 20A (230VAC)
- Frequency range: 50/60 Hz
- Operating Temperature: -30 - 70 ℃
- Relative humidity: 20%- 90%
- Rated power: 10W
- Output efficiency: 80%
- Module size: 66mm x 32mm
What's in the box?
1 x AC-DC Voltage Converter
Freenove Breakout Board for Raspberry Pi Pico / Pico H / Pico W, Terminal Block Shield with Pin Header, GPIO Status LED (pico breakout terminal board)
Please Note: This product does NOT include the Raspberry Pi Pico board.
Overview
This breakout board can help you wire and view the status of the GPIO pins.
Just plug your Raspberry Pi Pico into this board to complete the installation.
Compatible Models
Raspberry Pi Pico / Pico H / Pico W / Pico WH
Main Features
GPIO status LED
LED on if GPIO outputs/inputs high level, LED off if GPIO outputs/inputs low level.
Independent LED
The status LED is driven by the chip instead of the GPIO so the GPIO will not be affected.
Terminal block and header
Connect to all GPIO headers of Raspberry Pi Pico, 2.54mm / 0.1in pitch.
GPIO name
The name of each GPIO is printed next to the port.
What's in the box?
1 x Breakout Board for Raspberry Pi Pico
1 x Pinout Card
1 x Slotted Screwdriver
Esp32-Cam MB Micro-USB Programmer (esp32-cam programmer )
Esp32-Cam MB Micro-USB programmer is a shield for a standard Esp32-Cam board that adds a Micro-USB port. You just need to plug your board into the shield.
Once paired, as in the photo above, you only need a USB-micro-to-USB-A cable to connect to your PC or Mac and upload the code. That’s it. Easy, right?
To connect to your computer, you’ll need a micro USB cable.
What's in the box?
1 x Esp32-Cam MB Micro-USB Programmer board
Once paired, as in the photo above, you only need a USB-micro-to-USB-A cable to connect to your PC or Mac and upload the code. That’s it. Easy, right?
To connect to your computer, you’ll need a micro USB cable.
What's in the box?
1 x Esp32-Cam MB Micro-USB Programmer board
Easily program your ESP32-CAM WiFi Development Board
OTG Cable Adapter USB A female to USB-C male (OTG USB-C Adapter)
Does your new laptop have only USB Type C adapters? This nifty little adapter will help you connect to (I guess old world) USB A adapters.
What's in the box?
1 x USB adapter
What's in the box?
1 x USB adapter