KEYES Basic Learning Kit for BBC Micro:Bit
USB or battery powered
$24.57 FREE
4 x 5 Matrix Array 20 Key Membrane Switch Keypad Keyboard
compatible w/ Arduino
$1.66 FREE
DIY Bluetooth Stereo Audio Receiver Module Car Speaker Amplifier Board
dual channel / supports U-disk/microSD card music playing
$3.68 FREE
KEYES KE0125 Voice ARM Control Board V1.0 Module for Arduino
4*RGB LED indicator lights / photoresistance / passive buzzer / infrared receiver
$8.03 FREE
VHM-143 LM2596 DC-DC 8-40V to 3-37V 3A Voltage Regulator Buck Step-down Power Module
92% conversion rate / LCD real-time monitor
$4.34 FREE
ESP32-CAM Wifi / Bluetooth V4.2 Camera Module Development Board
supports up to 4GB microSD / 2dBi gain antanna / 802.11b/g/n
$7.86 FREE
ISD1820 Voice Audio Module Board Sound Recording Module
on-board microphone / playback / Arduino compatible
$2.20 FREE
2-in-1 960p Hidden Spy DVR Micro Camera & DIY USB Disk Driver Module
2MP / motion detection recording / supports up to 32GB microSD / charging & recording simultaneously
$10.70 FREE
12-24V to 12V/5V DC-DC Converter Board Power Supply Module
dual channels output
$1.83 FREE
VHM-013 Timer Module Countdown Switch Board
one button timing (0-999 minutes range) / max. 5A current
$6.09 FREE
KEYES Beginner Learning Kit for BBC Micro:Bit
STEM education programming kit for children
$32.73 FREE
DC 8-55V to DC 5V 3A Step Down Buck Converter Power Supply Module
over 93% conversion rate / circuit protection / dual USB female
$7.77 FREE
4-13V to 0.5-30V Adjustable USB Boost Buck Converter Power Supply Module
LED current/voltage/power display / overheating/anti-backflow/short circuit protection
$5.50 FREE
DC 18-40V to DC 12V Step Down Buck Converter Power Supply Module
over 93% conversion rate / circuit protection
$12.43 FREE