4pcs AT-09 Bluetooth 4.0 Transceiver BLE Module Serial Port CC2541 HM-10 MLT-BT05The AT-09 is a module that contains a BLE chip (CC2541).This small size Bluetooth 4.0 TTL transceiver module allows your target device communicate with for iPhone/iPAD, IOS 6 or...

4pcs HC-06 RS232 4 Pin Wireless Bluetooth Serial RF Transceiver Module Bi-Directional Serial Channel Slave Mode for ArduinoWorks with any USB Bluetooth adapters, running in slave role: Pair with BT dongle. Led indicate Bluetooth connection status, flashing Bluetooth connectivity, lit...

4pcs Speaker 3 Watt 8 Ohm Mini Speaker 8ohm 3w Loundspeaker Micro Speaker for Arduino with JST-PH2.0 Interface for Small Electronic Projects 3.3V 5V (3 Watt 8 Ohm)Mini speaker: 8 ohm 3 watt; Its connector is separating, One-to-Two interface, can...

50pcs 12 Volt 5mm Red LED Lights Emitting Diodes Pre Wired 7.9 inch DC 12v LED Light Clear Lens Small LED Lamps (Multicolor)Prewired with built in Resistor, 20000 hours+ Lifespan.50pcs Pre-wired 5mm Red LED - 5mm Clear LensPrewired LED For...

5pcs 18650 Battery Clip 2 Slots 7.4V Plastic 18650 Battery Storage Box Case with Black and Red Wire Leads for 18650 Battery with Connect LeadIt is suitable for DIY and maintenance of all kinds of dc equipment, with screw hole...

6pcs ESP32 GPIO Breakout Board 30Pins ESP32 Development Board Type-C USB and Micro USB CH340C WiFi+Bluetooth Ultra-Low Power Dual Core ESP32-DevKitC-32 ESP-WROOM-32 Expansion BoardESP32 shield 30P expansion board, supports two power supply : DC 6.5-16v and USB 5VThe GVS output...

6pcs IP68 Waterproof Junction Box, Outdoor Electrical Cable Connector for 3.5-10mm Wire Range(AC 250V, 16A), Quick Screwless Installation (2505-5Pin)The outdoor junction box is constructed with a premium-quality PC casing, a silicone sealing ring, and a nylon elastic wiring port. Compared...

D1 Mini NodeMCU ESP32 ESP-WROOM-32 WLAN WiFi Bluetooth IoT Development Board 5V Compatible for Arduino (3pcs)Designed with ultra-low power technology, it offers the full range of performance and features of the ESP32 chip. The pin arrangement provides compatibility with the...

Digital LED Electronic Clock DIY Kits PCB Practice Learning Board AT89C2051 and Components DC 9V - 12V (6 Bits Digital)1.This DIY assemble kits is equipped with 6 digits or 4 digits LED module, it's fun to build and also help...

DIY Electronic 16 Music Sound Box DIY Kit Module Practice Learning Kits for Arduino (Green)Arbitrarily issued 16 kinds of interesting analog sound. Control Mode: manual coding + external coding.It can be assembled with toys and can produce as many as...

ESP32-CAM WiFi + Bluetooth Module WiFi ESP32 CAM Development Board with Camera Module OV2640 2MP + FT232RL FTDI USB to TTL Serial Converter + 20 pin Jumper WireESP32-CAM WiFi + Bluetooth Module WiFi ESP32 CAM Development Board with Camera Module...

Multimeter Automotive Test Leads Kit with Crocodile Clip, Silicone Testing Lead Kit, Testing Hook, Testing Probe Professional Kit, Testing CableThe inner core of the test lead is oxygen-free copper wire. The material of the banana plug is pure copper, and...