10PCS 5V Active Buzzer Magnetic Long Continous Beep Tone Alarm Ringer 12x9.5mm Mini Active Piezo Buzzers, for Arduino

PC817 3.3V-30V 2 Way 4 Channel Optocoupler Isolation Board Voltage Converter Adapter Module Driver Photoelectric Isolated Module

ZB2L3 Battery Tester LED Digital Display 18650 Lithium Battery Power Supply Test Resistance Lead-acid Capacity Discharge Meter

MCP4725 I2C DAC Breakout Module Development Board

I2C ADS1115 16 Bit ADC 4 Channel Module with Programmable Gain Amplifier 2.0V To 5.5V for Arduino RPi

10pcs Reed Switch 14.2mm Length 3.3mm Diameter Closed

W1209 Digital Temperature Controller DC 12V Thermometer with Waterproof Probe LED Temperature Module DIY Electronic Thermostat

5PCS 5V 1A Micro USB 18650 Micro Lithium Battery Charging Board Charger Module+Protection Dual Functions TP4056

60-second Recording Playback DIY Voice Greeting Card Module Cable Extened 10CM

10pcs Reed Switch 14.2mm Length 3.3mm Diameter Black Closed

10pcs 1S 3.7V 3A Li-ion BMS PCM Battery Protection Board Pcm for 18650 Lithium Ion Li Battery

220V Practical Ptc Constant Temperature Heating Plate Welding Station For Led Backlight Aluminum

ESP-WROOM-32 ESP32 Bluetooth and WIFI Dual Core CPU with Low Power Consumption MCU IOT Module

Metal Detector Electronic DIY Kit Simple Metal Locator Loose Parts Set Circuit Board Making

TTP223B Digital Touch Sensor Capacitive TTP223 Touch Switch Module

PCF8591 AD / DA Conversion of To Digital /Digital-to- Converter Module Temperature Illumination / With Cable

10Pcs Flashlight Switches Dc 12V 0.5A Self-Locking Micro Push Button Switch

20 PCS TIP31C TIP32C TIP41C TIP42C TIP102 TIP107 NPN TRANSISTOR TO-220 Power Transistor

Single-directional Trigger Sensor Tilted Tools Vibration 24VDC

5pcs New Yellow Micrometals T50-6 Iron Powder Toroidal Core RF Toroid HF HAM QRP

10Pcs Toggle Switch Sk23D05G6 Double Row 3-Gear 8-Pin Horizontal Sliding Switch