GM328 Transistor Tester Frequency Meter PWM Square Wave Generator
LCD display / 1*9V battery
$13.92 FREE
GT-U7 GPS Module Wireless Navigation Satellite Positioning Board
w/ active antenna / NEO-6M compatible
$8.06 FREE
USB Host Shield for Arduino
authentic funduino board
$8.02 FREE
JY-MCU mini_RTCpro DS3231 Arduino Compatible Precision Clock Module w/ Temperature
AT24CXX 32K I2C EEPROM memory / for AVR PIC 51 ARM
 
(5)
$8.94 FREE
NRF24L01+ Enhanced 2.4GHz Wireless Transceiver Module (10-Pack)
10-PACK 2Mbps / 1.9-3.6V
$8.82 FREE
JY-MCU 8-Digit 7-Segment Numeric Display (Red) + 8 Push-button Keys + 8 Dual-Color LED Module
TM1638 display driver / chainable / JY-LKM1638
 
(4)
$7.27 FREE
JY-MCU HC-06 Bluetooth Wireless Serial Port Module
V1.07 / 3.3V level / Arduino compatible / 3.6-6V input / w/ 4P dupont line
$6.66 FREE
Mini 5V PAM8403 2-Channel Audio Power Amplifier Board (10-Pack)
10-PACK w/ potentiometer
$8.01 FREE
DRF1609H Module UART Serial to Zigbee Wireless Module
CC2630 chip / 1.6km power amplifier / 2.4GHz
$12.23 FREE
IIC / I2C Serial 3.1" LCD 2004 Display Module for Arduino
bule backlight / green board
 
(4)
$6.71 FREE
TI CC2540/CC2541 Bluetooth 4.0 BLE 2540 2541 Transparent Serial Data Module w/Antenna
3.3V TTL / bluetooth low energy / HM-10
 
(3)
$8.66 FREE
CC2541 Bluetooth 4.0 BLE Transparent Serial Data Module
HM-10 compatible / UART transceiver / support iOS / android
 
(1)
$9.59 FREE
TCS3200 Color Sensor Recognition Module w/ Two Pins
white / Arduino compatible
$10.41 FREE
MPU-6050 3-Axis Gyroscope + 3-Axis Accelerometer 6-DOF Module
Auduino compatible
$10.95 FREE