Test/Measure/Experiment
You can use this device from 3.5-7VDC input voltage (although most USB devices tend to hover around 4.75 to 5.25) and up to 3A of current. It flips between voltage and current readouts every 3 seconds or so. It's a very handy tool for testing USB devices, checking load levels and debugging battery chargers and boost converters.
Specifications:- USB 1.x and 2.x - all data speeds. Does not have USB v3 pins so USB v3 connections will automatically downgrade to v2
- Working Range: 0~3A, 3.5~7VDC
- Resolution: 10mV / 10mA
- Operating Temperature: 0-60ºC
- Contents:
- Camera Board 360 Gooseneck Mount V2
Dimensions:
- 21mm x 53mm x 15mm / 0.8" x 2.1" x 0.6"
- USB Plug: 13mm / 0.5"
- Weight: 16.2g
1 x USB Voltage and Current Meter
This voltmeter work without external power supply, can use the measuring voltage directly, Wide working voltage range of 4.5-30V. The wire connection is simple, only need to connect two wires, the red line connect the anode, the black line connect the cathode.
Features:
Working voltage: 4.5-30V
RASPBERRY PI NOT INCLUDED(Neither the key-ring and keys for those who wondered)
Description:
This cute little GPIO reference board from allows you to quickly and easily distinguish between the different pins of the Raspberry Pi Model B , Raspberry Pi 2B, Pi 3B and Pi 3B . It's even got a key chain hole, so you can carry it around and keep it handy - you'll never know when you need to hack a Pi!
The GPIO reference board features BCM numbering on one side and the pin names on the other. It can be soldered for permanent referencing, or slipped on and off when required.
On the RPi3 and later you'll have to snip off a little bit of the corner closest to pin 39 thanks to the new POE pins on the board
What's in the box:
1 x GPIO reference board
Description:
This is an Experimental Platform For Raspberry Pi 2/3 Model B and B and Arduino UNO R3
With Breadboard, Male to Female jumper cables, T type 40Pin GPIO, Ribbon Cable.
Package includes:
1 x Acrylic Platform (with Installation screws pack)
1 x Breadboard 800
10 x Male to Female jumper cables (Length: 25cm±2cm)
1 x T type 40Pin GPIO
1 x 40 pin ribbon Cable (20cm±2cm Length)
The cable tester can be used for RJ45 networks, RJ11 and telephone cables. It can test the cables with reliable accuracy. This is a useful tool for technicians in installation and maintenance.
Specifications:
- Tests both RJ45 (max 8-pin Network) and RJ11 (max 6-pin phone)
- Powered by a single 9V cell battery(not included)
- Carrying case not included
What's in the box?:
1 x RJ45 RJ11 Cable Tester
Use the USB Charger Doctor to measure the working voltage and current output for any USB port and project. This plastic dongle plugs between a USB device, and passes the data lines through. There's a 0.05 ohm resistor in line with the power pin that is used to measure current draw. The Doctor's digital display instantly reads the numbers out for testing devices such as chargers, cables, and cell phones.
You can use this device from 3.5-7VDC input voltage (although most USB devices tend to hover around 4.75 to 5.25) and up to 3A of current. It displays both voltage and current readouts. It's a very handy tool for testing USB devices, checking load levels and debugging battery chargers and boost converters.
Specifications:
Voltage range: 3.3V-9V
Current range: 0-3A
Voltage display: red
Current display: blue
Out put : 2 USB
Size: 52mm x 34mm x12mm
Weight: 16g
Shell color: Dark black
What's in the box?:
1 x Voltage Tester Dual USB
CCPM Servo Consistency Master/Servo Tester is a device that can be effectively used to test up to three servo motors at the same time. It is a useful tool to test Servo motors, ESC, and can be used to determine the motor directions.
This clever little Servo Tester Module has three modes to check the reaction times, neutral points and maximum angles for up to 3 servos simultaneously.
Specifications:
Item Name: Servo Tester
Size: 46x32x17mm
Weight: 8g
Color: Blue
Input: DC 4.2 to 6.0V
Output: ≤15mA (5.0)
Output signal: 1.5ms±0.5ms
Adjustment Methods: Manual, Neutral, Automatic.
Features:
Small size,low power consumption,high reliability and easy operation.
It can easily detect and configure server virtual bit, jitter and middle position.
Can connect two servos or ESC;
MCU control,good stability,high accuracy.
Note:
This product can't test a servo with a weight more than 55g.
If you want to test the motor,please first connect the ESC.
Package Includes:
1x servo tester
The hole gap is 2.54mm, and it's compatible with IC with DIP package.
The IO port can be quickly and easily implement your ideas.
Note:
- Extra header spacer included
- 170 tie points breadboard arranged in 34 rows of 5 pins included
Package includes:
1 x Prototyping Shield kit
- Auto Range.
- True RMS measurement.
- Resistance capacitance frequency file high voltage 550V protection.
- Large screen display, the maximum of 6000 words.
- Sampling rate: about 3 times per second.
- Temperature measuring.
- Backlight display.
- Data retention.
- Polarity automatic recognition.
- Low voltage display.
- 10A large current measurement MA level small current measurement Automatic shutdown.
- Main measurement: AC / DC voltage, AC / DC current, resistance, capacitance.
- Diode / off measurement, frequency and duty ratio measurement.
| Function | Range | Resolution | Accuracy | MAX.Value | Other |
| DC Voltage | 6.000V | 0.001V | ±(0.5% 3) | 1000V | Input Resistance:10MΩ |
| 60.00V | 0.01V | ||||
| 600.0V | 0.1V | ||||
| 1000V | 1V | ||||
| 60.00mV | 0.01mV | 600mV | |||
| 600.0mV | 0.1mV | ||||
| AC Voltage | 6.000V | 0.001V | ±(1.0% 3) | 750V | Input Resistance:10MΩ(600mV range, >60MΩ) Frequency Response: 40Hz-1kHz |
| 60.00V | 0.01V | ||||
| 600.0V | 0.1V | ||||
| 750V | 1V | ||||
| 60.00mV | 0.01mV | 600mV | |||
| 600.0mV | 0.1mV | ||||
| DC Current | 6.000A | 0.001A | ±(1.2% 3) | 10A | MAX.Current: 10A(no more than 15 seconds) No Voltage input at this mode Frequency Response(AC): 40Hz-1kHz |
| 10.00A | 0.01A | ||||
| 60.00mA | 0.01mA | 600mA | |||
| 600.0mA | 0.1mA | ||||
| AC Current | 6.000A | 0.001A | ±(1.5% 3) | 10A | |
| 10.00A | 0.01A | ||||
| 60.00mA | 0.01mA | 600mA | |||
| 600.0mA | 0.1mA |
| Resistance | 600.0Ω | 0.1Ω | ±(0.5% 3) | 60MΩ | No Voltage input at this mode | |||||
| 6.000kΩ | 0.001kΩ | |||||||||
| 60.00kΩ | 0.01kΩ | |||||||||
| 600.0kΩ | 0.1kΩ | |||||||||
| 6.000MΩ | 0.001MΩ | |||||||||
| 60.00MΩ | 0.01MΩ | ±(1.5% 3) | ||||||||
| Capacitance | 9.999nF | 0.001nF | ±(5.0% 20) | 9.999mF | No Voltage input at this mode | |||||
| 99.99nF | 0.01nF | ±(2.0% 5) | ||||||||
| 999.9nF | 0.1nF | |||||||||
| 9.999μF | 0.001μF | |||||||||
| 99.99μF | 0.01μF | |||||||||
| 999.9μF | 0.1μF | |||||||||
| 9.999mF | 0.001mF | ±(5.0% 5) | ||||||||
| Frequency | 99.99Hz | 0.01Hz | ±(0.1% 2) | 9.999MHz | ||||||
| 999.9Hz | 0.1Hz | |||||||||
| 9.999kHz | 0.001kHz | |||||||||
| 99.99kHz | 0.01kHz | |||||||||
| 999.9kHz | 0.1kHz | |||||||||
| 9.999MHz | 0.001MHz | |||||||||
| Duty Cycle | 1%~99% | 0.1% | ±(0.1% 2) | |||||||
| Diode | √(DC forward current is 5mA, voltage is 3V) | No Voltage input at this mode | ||||||||
| Continuity | √(no more than 50Ω) | |||||||||
Temperature | -20~1000℃ | 1℃ | ±(2.5% 5) | 1000℃ | ||||||
| -4~1832℉ | 1℉ | 1832℉ | ||||||||
- Measurement mode: double-integral style A/D transform
- Sample rate: 3 times per second
- Over range indication: OL
- Powered by 2 x AAA batteries (Not included).
- Working Environment: 0-40 degrees relative humidity: <80%
- Product size: approx. 130 x 65 x 30mm/5.11 x 2.55 x 1.18''
- Net weight: approx. 170g
- Gross weight: approx.238g
Misusing or mishandling a lithium-ion battery may cause a FIRE or EXPLOSION which can result in INJURY or DEATH.
Description:
The LiitoKala Lii-402 Smart Charger for Lithium Ion and NiMH batteries is the perfect bench mate to keep your radios, robotics and flashlights running at peak efficiency. In a sea of endless chargers for sale, we have found one that will meet and exceed the needs of many consumers.
Specifications:
Product name: Liitokala Lii-402 Micro USB 4Slots Battery Charger
Input : Micro USB DC 5V/2A
Output: 1.42V
4.2V±0.05V
3.65±0.05V
4.35±0.05V
Current: 2000mA*1 1000mA*2 700mA*3 500mA*4
Constant voltage, cut-off current: less than 100mAh
Standby current: less than 15mAh
Compatible with:
Ni-MH/Cd
AA/AAA/A/SC Sizes
3.7V Li-ion battery including
26650,22650,26500,18650,18490,17670,17500,16340,14500,10440
Size: 112mm x 90mm x 30mm (L x W x H)
Weight: 150 grams (incl. micro cable)
USB Output function
1. 0pen-circuit voltage of USB output : 4.9-5.3V; and the 4th slot is fixed for the USB discharge power source
2. Output current: 1000mAh
3. Open circuit current: <1mAh
4. The corresponding voltage is 4.75-5.25V under 1000mAh current
5. Cut-off voltage for discharge protection: 3.0±0.1V
You will need a power supply for this charger
1 x Liitokala Lii-402 Micro USB 4Slots Battery Charger
1 x USB Cable
We found this little unit great to measure our incoming solar power versus outgoing battery load on a second unit
Examples of Uses:
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.
Specification:
| 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 |
| Color | Black |
English Manual please click here
Package Includes:
1x 130A High Precision Battery Watt Meter And Power Analyzer
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. |
Package includes:
1 x CT
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.
Handy device for testing LED's. Simply plug your LED into the correct holes (all of which are marked) and push the button to see its brightness, illuminant color, etc.
Handy device for testing LED's (2-150mA)
The top row is for 2 pin LED's with currents ranging from 2mA - 30mA
The bottom row is for 4 pin LED's (piranha LED's) with currents ranging from 20mA - 150mA
Specifications:
Material: Plastic
Color: White
Lightweight & compact
Powered by a 9V battery (not included)
What's in the box?
1 x LED tester
Item size(L*W*H) : Approx. 80mm x 55mm x 22mm
Quantity: 1PC
ESD wrist straps also known as Antistatic wrist straps are used to prevent electrostatic discharge (ESD) by safely grounding a person working with electronic equipment or at an electronic assembly facility. It consists of a band of fabric with fine conductive fibers woven into it. The fibers are usually made of carbon or carbon-filled rubber and the strap is bound with a stainless steel clasp or plate. They are usually used in conjunction with an antistatic mat on the workbench or special static-dissipating plastic laminate on the workbench surface.
2. Double circuit electronic, anti-friction.
3. Loop length can be adjusted.
4. Easy to use and flexible, long life and does not produce dust.
5. Mainly for the production line staff and static index is high individuals within the scope of activities of production and easy to produce static electricity generated in their daily working lives high electrostatic potential
6. Use of "point discharge" principle, to achieve electrostatic collection and release.
2. Wrist ring: Anti-static Elastic Fabric
3. Color: Black
4. Surface resistance: ≤103Ω
5. Electrostatic discharge time: <0. 1s
6. Cable length: 1. 8m/6FT
This is a Panel Meter that measures Voltages and Current. The display can measure voltages from 0v to 100v dc and measure current from 0 to 10 Amps. The display has 3 segments and can simultaneously calculate the power consumption in watts.
Specifications:
- Voltage 0.0V to 100V
- Current 0A to 10A
- Working voltage DC 4 to 30V
- Working current <20mA
- Size 48mm x 29mm x 22mm
Battery powered panel-mount temperature display. Suitable for basic room or environment monitoring.
Features
- Material: Plastic
- Indoor temperature °C display.
- It comes with a mounting clips which allows it to be panel mounted
- Temperature range: -50 ~ 70 Degrees.
- Usage temperature: -10 ~ 50 Degrees.
- Usage humidity: 5% ~ 80%
- Accuracy: /-01 Degrees.
- Distinguishing temperature: 0.1 Degrees.
- Power: 2 x DC1.5V AG13 button batteries (Not included)
- Cable length: 0.8M.
- Size: 48 x 28 x 15(mm)
- Color: Black
Package Includes:
1 x LCD Digital Thermometer Temperature Sensor
Charge Level Red Indicator Voltmeter Precise for 12V Lead-acid Battery
Specifications:
1. Working current:5-15mA
2. Eight electricity Level Resolution:10% 25% 40% 50% 60% 75% 90% 100%
3. Voltmeter accuracy:1%
4. Working temperature: -10 ~ 65 Celsius
5. Operating Humidity: 10 ~ 80%
6. 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.
Package Includes:
1 x lead acid LED indicator battery capacity tester voltmeter 12V
The ZeroDock is an all-in-one desktop prototyping dock for your Raspberry Pi Zero .
Little brother to ProtoDock , ZeroDock will keep your desk tidy and all of your Raspberry Pi Zero accessories in one place. No more searching for your micro-SD cards , SD adapters , HDMI adapters , USB shims , breadboards or even the Raspberry Pi Zero itself.
It’s all here, every time you’re ready to prototype a project, in one neat and tidy package.
Please note: Simple assembly required. Please see the assembly guide.
The default configuration holds a mini breadboard (included), an SD card adapter, 2x micro SD cards, 2x USB devices, a micro-USB shim and of course the Raspberry Pi Zero itself.
Users can decide to use the micro-USB shim slot to hold a micro-HDMI adapter, or you may want to hold a Portsplus or similar GPIO reference card in the SD adapter slot. You can choose to store your USB micro-SD card reader or even other larger USB devices such as the USBDoctor. Use it in whatever way works best for you.
All of the Raspberry Pi Zero ports are accessible from the ZeroDock, including the camera port and reset/composite pin header. pHATs are also not obstructed, so you’re free to prototype with your favourite add-on boards.
The case is a stylish mix of clear and black acrylic layers, black fixings and a clear breadboard, fitting in well alongside most desktop PCs/monitors.
Assembly guide available here
Kit includes:
• 4 layer laser-cut acrylic case
• Case and Raspberry Pi fixings
• Mini breadboard
Please Note - Raspberry Pi Zero & accessories not included (but the breadboard is!)
This is a 4-ch current and power monitor HAT designed for Raspberry Pi. Via the I2C or SMBus interface, it is easy to monitor each channel's current, voltage, and power consumption, as well as the voltage between both sides of the sampling resistor.
Features- Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
- 4-ch monitoring, via I2C/SMBus interface
- Onboard 0.1Ω 1％ sampling resistor, allows measuring bi-directional current up to 3.2A
- Embedded 12-bit ADC, supports multiple successive converting, 0~26V voltage measuring range
- Directly calculate and output measured power value through additional multiply register
- I2C control pins for connecting with other host boards
- Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32)
- Operating voltage: 3.3V/5V
- Control interface: I2C/SMBus
- Sampling resistor: 0.1Ω 1%
- Voltage range: 0~26V
- Current range: ±3.2A
- Resolution: 0.8mA (±3.2A range) OR 0.1mA (±400mA range)
- Dimensions: 65mm × 30mm
- Mounting hole size: 3.0mm
Development Resources