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A test probe, test prod, scope probe or test lead is a physical device used to connect electronic test equipment to a device under test or DUT. They range from very simple, rugged devices to complex probes that are sophisticated, expensive, and fragile. A current probe generates a voltage proportional to a current in the circuit being measured; as the proportionality constant is known, instruments that respond to voltage can be calibrated to indicate current. Current probes can be used both by measuring instruments and oscilloscopes. To measure or display the modulating waveform of a modulated high-frequency signal, for example: an amplitude-modulated radio signal-a probe fitted with a simple diode de-modulator can be used. The probe will output the modulating waveform without the high-frequency carrier.

In-circuit test or ICT is an example of white box testing where an electrical probe tests a populated printed circuit board "PCB", checking for shorts, opens, resistance, capacitance, and other basic quantities which will show whether the assembly was correctly fabricated. It may be performed with a bed of nails type test fixture and specialist test equipment, or with a fixture-less in-circuit test setup.

A function generator is usually a piece of electronic test equipment or software used to generate different types of electrical wave forms over a wide range of frequencies. Some of the most common wave forms produced by the function generator are the sine, square, triangular and saw-tooth shapes. These wave forms can be either repetitive or single-shot which requires an internal or external trigger source. Integrated circuits used to generate wave forms may also be described as function generator ICs. Although function generators cover both audio and RF frequencies, they are usually not suitable for applications that need low distortion or stable frequency signals. When those traits are required, other signal generators would be more appropriate. Some function generators can be phase-locked to an external signal source which may be a frequency reference or another function generator. Function generators are used in the development, test and repair of electronic equipment. For example, they may be used as a signal source to test amplifiers or to introduce an error signal into a control loop.

52V 48V

52V 48V 14S 30A Lithium 18650 Battery Protection Board BMS PCB Ebike Scooter

52V 48V 14S 30A Lithium 18650 Battery Protection Board BMS PCB Ebike Scooter

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36V 10S

36V 10S 30A Li ion Battery Protection Board BMS PCB for Electric Bike Ebike DIY

36V 10S 30A Li ion Battery Protection Board BMS PCB for Electric Bike Ebike DIY

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FR4 Copper

FR4 Copper Clad Laminate PCB Printed Circuit Board Material

FR4 Copper Clad Laminate PCB Printed Circuit Board Material

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4S 12V

4S 12V 60A Li ion LPO Lithium Battery Cell Protect PCB BMS Board IP65 W Blance

4S 12V 60A Li ion LPO Lithium Battery Cell Protect PCB BMS Board IP65 W Blance

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DC DC

DC DC Converter 20A300W Step Down Buck Boost Power Adjustable Charger Board Tool

DC DC Converter 20A300W Step Down Buck Boost Power Adjustable Charger Board Tool

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Solderless Breadboard

Solderless Breadboard Protoboard T P Tie point 3220 Hole PCB Prototype Board US

Solderless Breadboard Protoboard T P Tie point 3220 Hole PCB Prototype Board US

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DUE R3

DUE R3 SAM3X8E 32 bit ARM Cortex M3 Control Board Module Arduino With Cable US

DUE R3 SAM3X8E 32 bit ARM Cortex M3 Control Board Module Arduino With Cable US

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DWIN SBC

DWIN SBC Single Board Computer with 7 Touchscreen 1GHz 512MB DDR3 4GB NAND

DWIN SBC Single Board Computer with 7 Touchscreen 1GHz 512MB DDR3 4GB NAND

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40 pcs

40 pcs Double side Protoboard Circuit Prototype DIY PCB Board 2x8 3x7 4x6 5x7cm

40 pcs Double side Protoboard Circuit Prototype DIY PCB Board 2x8 3x7 4x6 5x7cm

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US ESP32

US ESP32 CAM ESP32 5V WIFI Development Board With OV2640 Camera Module

US ESP32 CAM ESP32 5V WIFI Development Board With OV2640 Camera Module

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HDMI Audio

HDMI Audio LCD Controller Board For M170ETN011 WYD170SKD Compatible Arcade 1UP

HDMI Audio LCD Controller Board For M170ETN011 WYD170SKD Compatible Arcade 1UP

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Espressif ESP32

Espressif ESP32 WLAN Dev Kit Board Development Bluetooth Wifi v1 WROOM32 NodeMCU

Espressif ESP32 WLAN Dev Kit Board Development Bluetooth Wifi v1 WROOM32 NodeMCU

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Octo 8

Octo 8 MAX31855 thermocouple breakout board for 5V systems type K K type

Octo 8 MAX31855 thermocouple breakout board for 5V systems type K K type

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ESP32 Cam

ESP32 Cam WiFi Bluetooth Module Development Board with OV2640 Camera Module

ESP32 Cam WiFi Bluetooth Module Development Board with OV2640 Camera Module

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PJRC Teensy

PJRC Teensy 40 iMXRT1062 Microcontroller Development Board US

PJRC Teensy 40 iMXRT1062 Microcontroller Development Board US

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FM Radio

FM Radio Experiment Board DIY Kit Education Electronic Project

FM Radio Experiment Board DIY Kit Education Electronic Project

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MSGEQ7 breakout

MSGEQ7 breakout board 7 band graphic equalizer for audio for Arduino RPi PIC

MSGEQ7 breakout board 7 band graphic equalizer for audio for Arduino RPi PIC

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ESP32 Rev1

ESP32 Rev1 Development Board with USB2Serial Made in USA Arduino Programmable

ESP32 Rev1 Development Board with USB2Serial Made in USA Arduino Programmable

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