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When purchasing a product, price is the consumer's primary concern. At present, Stemedu has 156 products for sale. Stemedu products range in price from $5.99 to $50.9, and the average price of all the products is about $18.49. It's affordable for most consumers, and you can feel free to pick your favorite products.

You can confidently purchase Stemedu products from the seller Stemedu. The brand holds an average rating of 4.3, testifying to its excellent reputation.

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Last Updated: Jan 10, 2026

Stemedu MP3 Playback Kit Music Voice Recording Module DIY Welcomer Sound Recording Board with Speaker and PIR Infrared Sensor, Support USB Download and TF Card

Digital Voice Recorders

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This is a voice recording module, it can realize MP3 music playback, small size, light weight, simple operation. The best choice for DIY creative gifts.

This MP3 recording module has two storage methods: TF card and USB download. Sound recording board built-in storage space of 4MB, and supports up to 8GB TF card. TF card doesn't include.

5 buttons to control music play/pause, adjust volume. With loop, jog play, single-pass playback.

Audio will be played whenever the human body sensing is triggered. Suitable for public places such as shops, safety experience halls, construction sites, shopping malls, elevators, banks, ATM teller machines, display areas, etc.

Important Tips: 1. Please make sure the Micro USB cable you used is a data cable, othervise this module won't be recognized by your computer. 2. If the sensor does not work, please adjust the sensing distance by rotating the potentiometer on the PIR sensor first.

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Stemedu 8MB Sound Recordable Module Button Control Programmable Voice Chip, MP3 Music Player Kit, USB Downloadable Musical Board for DIY Audio Stuffed Animal Toys Greeting Card Music Box

Digital Voice Recorders

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Recordable sound module has small size and 8MB memory, it can be realized MP3 music playback.

This Stemedu MP3 music recording module is easy to use. It doesn't require any welding skills, downloaded your own MP3 files with USB cable, add music/audio/voice from your computer, and powered it up.

Power supply: 4.5-5V, or 3.7V lithium battery, 8MB sound recordable module comes with an empty AA battery case.

High sound quality recorderable module, ideal for models and crafts, such as Children's Day gift, Mother's Day gift, DIY music box, musical greeting card, Christmas creative gift

How to use: Please install 3PCS AA batteries first (batteries are not included), and click the play button to test, which contains a Chinese song. Windows system: Click on the removable U disk, delete the pre-stored music, and paste your own MP3/WAV music files. IOS system: The sound module needs to be formatted first, for instruction, please see the fifth picture on the left or User Manual (PDF) under the "Product guides and documents"

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Stemedu 4PCS DC TT Motor Gearbox Motor - 3-6V Dual Shaft Geared Electric Motors for Ar-duino Smart Car Chassis - 200RPM Ratio 1:48 DIY Robot Toys (4)

RC Electric Motors

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DC geared TT motor is equipped two-axis can be equipped with a speed-measuring code plate for convenient measurement speed.

Rated Voltage: 3~6V

The DC TT decelerating motor is a two-axis motor with a reduction ratio of 1:48, which has strong anti-interference ability.

This DC Electric Motor suitable for DIY smart cars, compatible with arduino, Micro:bit, etc.

Scope of use: scientific research electronic products, robot electric human body, bubble gun toy gun body, four drive car toy cars, aircraft toys, vibration products and other electric toys

Stemedu 5PCS Capacitive Analog Soil Moisture Sensor Module 3.3~5.5V Corrosion Resistant Humidity Detection Sensors DIY Electronic for Arduino for Raspberry Pi

Temperature Probes & Sensors

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[Version] This capacitive analog soil moisture sensor is V1.2

[Voltage] Working voltage: 3.3~5.5 VDC, output voltage: 0~3.0 VDC

[Interface] Interface: PH2.54-3P, Pin: Analog signal output, GND, VCC

[Feature] Capacitive humidity sensor has good linearity, good repeatability, small hysteresis, fast response, small size, and can be used at - 10 ℃ - 60 ℃ humidity environment

[Comparision] This capacitive soil humidity sensor is different from most of the resistive sensors. It uses the capacitive sensing principle to detect soil humidity, avoiding the problem that the resistive sensor is easily corroded, and greatly extending its working life.

Stemedu TFmini Plus Micro Range Finder Sensor 0.1m~12m Lidar Distance Detection Module for Arduino, UART I2C IIC I/O 1000Hz Antidust Waterproof

Laser Distance Meters

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Operating Range: 0.1m~12m, Distance resolution: 5mm, Central wavelength: 850nm

TFmini Plus is a milestone of Benewake in the process of promoting the cost-effective -LiDAR. Apart from low-cost, small-size and low-power-consumption, TFmini Plus also improves the frame rate, introduces.

TFmini Plus is more safe stable than TFmini, open form module, TFmini Plus has been designed with IP65 enclosures, and also passed the vibration test of drone level, which will greatly expand its application range.

This TFmini plus range detection module is compatible with both the UART and I2C interface. Different interfaces can be switched by commands.

Document:https(:)//preview(dot)tinyurl(dot)com/tfmini-plus, http(:)//en(dot)benewake(dot)com/download

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Stemedu VK172 GPS Module USB G-Mouse Dongle Receiver GPS/GLONASS Tracker for Windows 10/8/7/vista/XP for Goo.gle Earth/Andorid/Linux/Raspberry Pi System

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This VK-172 usb gps receiver module can support Windows, Andorid, Linux sytem, Raspberry PI and EMGRAND car and Goo()gle Earth.

The default output of Vk 172 g-mouse is the product GPS protocol data. You can test the software or serial commands to modify switch PS / GLONASS protocol data.

Plugged this VK 172 USB GPS module into linux machine, detected as ttyACM0. No additional drivers or configuration required

You need install the driver before use this USB GPS dongle

Please find the User Manual [pdf ] of VK172 / User Guide [pdf ] on this listing page - Technical Specification

Stemedu 4pcs 4 Cell AA Battery Holder with ON/Off Switch 6V Plastic Battery Case Holder Case with Cover 4 Slots 1.5V AA Battery Storage Box with Wire Leads

Battery Holders

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4 AA battery holder with switch, 6V (4 x 1.5V) AA case battery storage, stores up to 4 AA batteries

The size of the battery case holder is 70mm x 65mm x 20mm (LxWxH)

Widely compatible with various devices including remotes, toys, cameras, and more to meet your daily needs

This 4 AA battery holder is designed for series connection, providing efficient power supply. It features a secure cover, making it perfect as a battery box with lid, and a switch for safe and convenient use, ideal for a battery holder with switch

The red and black wires are 15cm long, making it easy to connect to various devices to meet your power needs, whether in a solderable battery holder or a portable battery box. Whether for DIY projects or electronic devices, this battery case is the ideal choice for more flexible and efficient battery usage

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Stemedu 2PCS Micro SD Card Module TF Card Memory Storage Adapter Reader Board SPI Interface with Integrated Circuit Breakout for Arduino for Raspberry Pi

Memory Card Readers

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Document link: https(:)//www(dot)instructables(dot)com/id/Micro-SD-Card-Tutorial/

This is a Micro SD card reader module, reading and writing through the file system and the SPI interface driver. Please make sure the card format is FAT32

SCM system can be completed within a file MicroSD card. Support Micro SD Card and Micro SDHC card (high speed card). Maximum storage of Micro SD card is 2GB, Micro SDHC card is 32GB.

Microcontroller system to complete the MicroSD card read and write files. Ar-duino users can directly use the Ar-duino IDE comes with an SD card to complete the library card initialization and read and write.

The signal in the direction of the Micro SD card is converted into 3.3V, and the MISO signal in the direction of the control interface from the MicroSD card is also converted into 3.3V. Generally, the AVR microcontroller system can read this signal.

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2 Sets Heltec ESP32 915MHz LoRa V3 Board SX1262 0.96 OLED Display BLE+WiFi ESP32-S3 Dual-core Development Module for Meshtastic IOT Arduino Intelligent Scenes

Single Board Computers Raspberry Pi Starter Kits

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WiFi LoRa 32 V3 is a classic IoT development board, Integrated Wi-Fi, BLE, LoRa, onboard 0.96-inch 128*64 OLED display and other functions, as the same as lora V2. But the MCU, lora chip and USB interface are different

Different MCU: V2 uses ESP32-D0WDQ6, V3 uses ESP32-S3FN8 dual core processor, so the definitions of GPIO pins are different; Different LoRa chip: V2 uses SX1276/8, V3 uses SX1262; Different USB interfaces: V2 uses Micro USB, V3 uses USB Type-C

Type-C USB interface, 3.7V lithium battery power supply and charging (Excludes batteries); Frequency: 863~928MHz; Wi-Fi: 802.11 b/g/n, up to 150Mbps

When you use this ESP32 LoRa V3 development board with 915 MHz antenna, you can use two sets together, one for receiving and another for transmitting

You will get: 2 x ESP32 LoRa V3 SX1262 0.96 inch OLED Display, 2 x 868MHz 915MHz GSM 1.13 UF.L Antennas, 2 x Terminal Connector Cables, 4 x Pin Headers

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Stemedu 5PCS HX711 Load Cell Amplifier A/D 24 Bits Precision Breakout Board Dual-Channel Weighing Sensors Converter Modules for Arduino for Raspberry Pi

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This HX711 amplifier module use 24 high precision A/D converter chip hx711, dual-Channel 24 Bit Precision A/D Module

HX711 load cell AD module is a specially designed for the high precision electronic scale designwith two analog input channel to internal integration of 128 times the programmable gain amplifier

The input multiplexer selects either Channel A Or B differential input to the low-noise programmable gain amplifier (PGA)

Applications: This weighing sensor amplifier module can use to be weight scales, kitchen scale, industrial process control and so on.

What you will get: 5pcs HX711 amplifier module for load cell.

Stemedu 5PCS GY-521 6 DOF mpu6050 Accelerometer Sensor Module MPU-6050 3 Axis Gyroscope 3 Axis Acceleration 16 Bit IIC I2C Breakout Board for Arduino

Acceleration Sensors

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5PCS Stemedu GY-521 MPU6050 6-axis accelerometer gyroscope sensors

Gyroscope range: ±250 500 1000 2000 °/s

Acceleration range: ±2±4±8±16g

Chip built-in 16bit AD converter, 16-bit data output

Communication modes: standard IIC communication protocol

Stemedu HJ Digital Servo Tester ESC Consistency Speed Controller for RC Helicopter Airplane Car Motor Throttle Display

RC Servos

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This 4CH servo tester can control 4 servos at the same time, output signal can be accurate to 2us (1 milliseconds = 1000 microseconds)

50H analog servo signal cycle 20us frequency 50Hz

125H digital the steering gear a signal cycle 8us frequency 125Hz

250H Digital Servo signal cycle 4us frequency 250Hz

You will get 1 x RC Digital Servo Tester/ESC Consistency Tester

Stemedu Micro 2.1g Servo DM-S0020 Super Mini Digital Servo 2g Ultra-Lightweight Coreless Servo for RC Hobby Helicopter (Pack of 4)

RC Servos

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High Performance: This micro 2g servo is featuring super wear - resistant precision gears and a coreless motor, make it runs fast and has low power consumption

Digital Servo: 2g digital servo, high sensitivity, stable and low noise

Stall Torque & Speed: 0.08 sec/60 speed, 0.2 kg-cm torque

Universal Compatibility: Features a standard Futaba/JR plug, making it compatible with most RC systems, such as Futaba, JR, SANWA, Hitec and other remote control systems, and includes horns and screws for easy installation

Application Scenario: 2.1g digital servo compatible with 1/24 SCX24/C10/JLU/B17/RC Helicopters, small arduino cars and robots, and other DIY models.

Stemedu 5pcs HC-SR501 PIR Infrared Motion Sensor Human Body IR Movement Detector Sensor Module for Arduino for Raspberry Pi

Motion Detectors

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HC-SR501 Delay Time: 0.5-200S (adjustable), the range is (0.xx second to tens of second), the delay time can be adjusted by using the potentiometer on the HC-SR501 motion sensor.

Operating voltage range: DC 4.5-20V; Quiescent Current:

Automatically and quickly turn on home devices by detected HC-SR501 motion sensor.

HC-SR501 motion sensor is an economic hightech products. It is widely used.

Angle Sensor:

Stemedu EMAX ES08MA II 12g Mini Metal Geared Servo Micro Analog Servo Forward for RC Car Helicopter Model (Pack of 4)

RC Servos

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High Performance: The EMAX ES08MA II 12g analog servo provides excellent precision control, low noise, stable operation, and quick response, ensuring smooth and efficient performance for your RC applications

Stall Torque & Speed: Delivers a torque of 1.6kg.cm at 4.8V and 2.0kg.cm at 6V, with an operating speed of 0.14 sec/60° at 4.8V and 0.12 sec/60° at 6V for fast and reliable movement

Metal Gear: 12G Micro servo equipped with a full metal gear system that offers enhanced durability and strength, reducing the risk of gear slippage and ensuring long-lasting performance even under heavy loads

Wide Applications: Ideal for a variety of RC vehicles, including cars, boats, planes, helicopters, and drones. Perfect for use in micro-control applications, such as model aircraft and toys

Universal Compatibility: Features a standard Futaba/JR plug, making it compatible with most RC systems, and includes horns and screws for easy installation

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Stemedu USB GPS Module GLONASS Beidou GPS Dongle Built-in Ceramic Antenna, Better Than VK-162 VK-172

GPS Antennas

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This GPS module can work with Windows XP, 7, 8 or 10

Work for Raspberry pi and linux no need driver

Plugged it into linux machine, detected as ttyACM0. No additional drivers or configuration required

The default output is the product GPS protocol data. You can test the software or serial commands to modify switch PS / GLONASS protocol data

Stemedu 80KG High Torque RC Servo DS5180, Large Size PWM Control Servo, Stainless Steel Gear, 270° Control Steering Motor for 1/5 RC Vehicles, Crawlers, Robots, Boats

RC Servos

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High Torque Performance: Offers stall torques of 85kg/cm at 6V, 98kg/cm at 7.4V, and 105kg/cm at 8.4V

High Speed Performance: 0.24sec/60 degree at (6V), 0.21sec/60 degree at (7.4V), 0.19sec/60 degree at (8.4V)

Wide Voltage Range: Operates effectively within a voltage range of 6V to 8.4V

Robust Construction: Features stainless steel gear, copper & aluminum gear material, and CNC aluminum middle shell

PWM Driving Mode: Utilizes PWM driving with a pulse width range of 500-2500 usec for precise control, fits for 1/5 standard RC cars, robots, vehicle, boat, airplane models, and other DIY toys

868MHz 915MHz WiFi LoRa 32 V3 Module Development Board Type-C SX1262 Integrated WiFi Bluetooth - ESP32 0.96 inch OLED Display 8MB Flash IOT Lora Dev-Board + Antenna U.FL to SMA 915MHz

Single Board Computers Raspberry Pi Starter Kits

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WiFi LoRa 32 is a classic IoT development board, V3 version, integrated Wi-Fi, BLE, LoRa, 0.96 inch OLED display and other functions. Not Compatible with LoRa 32 V2

Frequency: 863~928MHz; Wi-Fi: 802.11 b/g/n, up to 150Mbps

8MB Memory Storage Capacity

Type-C USB interface with a complete voltage regulator, ESD protection, short circuit protection, RF shielding, and other protection measures

This WiFi Esp32 Lora V3 development board comes with one U.FL to SMA connector LoRa antenna

Stemedu 5PCS SFM-27 DC 3-24V Alarm Siren Electronic Piezo Active Buzzer, 95dB High Decibel Continuous Beep Speaker for Arduino

Security Horns & Sirens

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Voltage range: Operating voltage 3-24V, rated voltage 12V

Size: Alarm diameter 29mm/ 1.14", height 15mm/ 0.59"

Sound level: Produces continuous high-decibel alarm sound up to 95dB

Applications: Suitable for car modification, DIY electronics projects, and other sound alarm needs

Package contents: Includes 5pcs 95DB black active buzzers

Stemedu 4 Pack MG90D Digital Servo 9g Lightweight Servo Full Metal Gears Micro Servo for Arduino Project RC Helicopter Boat Robot Car Gimbal

RC Servos

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Ultra-Compact Metal Gear Servo - Weighs only 9g with dimensions 22.8×12.2×28.5mm; Aluminum alloy gears provide high torque up to 2 5kg/cm at 6V; Ideal for robotics and RC models requiring lightweight durability

Precise Digital Control & Speed - 0.08sec/60° rotation at 6V; 180°±3° angle range with 1μs dead band; Pulse width 500–2500μsec; Digital controller ensures responsive positioning for drones and robotic arms

Wide Voltage Compatibility - Operates at 4.8V–6V; Delivers stall torque 2.1kg/cm (4.8V) to 2.5kg/cm (6V); Stable performance in varied power conditions; Includes 25cm wire with JR plug for easy installation

Enhanced Durability & Kit Value - All-metal gears resist wear under frequent use; Temperature range 0℃–55℃; Includes 4 servos + mounting arms/screws; No mechanical limits enable custom modifications

Optimized For Signal Integration - Works with 50–300Hz PWM systems; Neutral position 1500μsec; Note: Compatible with standard remotes (pulse 1000–2000μsec achieves 90° rotation); Perfect for Arduino and DIY electronics projects

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Stemedu FAQs

Is Stemedu Legit?

Yes, Stemedu is a legitmate brand on Amazon. After conducting a comprehensive analysis of 949 customer reviews for Stemedu products on Amazon, we have determined its average rating. Offering great value and satisfying quality, Stemedu has achieved a respectable rating of 4.3 from many customers, showing that its products meet customer expectations. While there may have been minor issues reported occasionally, overall, it is safe to make purchases from Stemedu on Amazon.

Amazon has strict policies and safety measures in place that ensure only legitimate sellers and products are allowed on their platform. It also provides a secure payment gateway and offers buyer protection, ensuring your transaction is safe. In the unlikely event that there's an issue with your purchase, Amazon's customer service and return policies are designed to protect your interests.

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