GOM08 8-Channel 5-36V SSR Solid State Relay Module
high level trigger / optocoupler output / 48V/1A max. load / reverse polarity protection
$19.46 FREE
DRF2657 RS232 to ZigBee Wireless Module
2.4GHz band
$31.66 FREE
HM-13 Dual Mode Bluetooth 4.0 BLE SPP LE Serial Port Module
compatible w/ Bluetooth 3.0/2.1
$6.10 FREE
3-Channel Line Tracking Sensor Module
red / Arduino compatible / 10mm detection range
$2.08 FREE
RD DP50V5A 1.44" LCD Buck Adjustable Power Supply Module
authentic / numerical control / w/ integrated voltmeter & ammeter
$29.66 FREE
Authentic EleksMaker Mana V5.2 3-axis Stepper Motor Controller Driver Board
for DIY laser engraver / 12V / w/ case
$28.57 FREE
100A Digital Double Pulse Encoder Spot Welder Machine Time Control Module
LCD display / multi-group data 12864 visual display / grid voltage compensation / 0-9999 welding counting function & more
$23.59 FREE
AM2302 DHT22 Digital Temperature Humidity Sensor Module
w/ PCB board / Arduino/SCM compatible
$3.82 FREE
XH-W1401 Intelligent Digital Temperature Controller Board
DC 12V / NTC sensor / three window synchronous LED display / temperature control range: -9~99'C
$5.82 FREE
DC-DC 9-60V to 12-80V Boost Converter Step Up Module
short circuit/over current/reverse input/output anti-flooding protection
$11.51 FREE
XH-M214 Soil Moisture Humidity Controller Automatic Control Irrigation Module
red digital display / 20-99%RH measuring range / 1%RH control accuracy / DC 12V power supply voltage
$5.20 FREE
USB to TTL Serial Converter Adapter Module for Arduino
CP2102 chipset / w/ dupont cables
$2.53 FREE
TI CC2540/CC2541 Bluetooth 4.0 BLE 2540 2541 Transparent Serial Data Module w/Antenna
3.3V TTL / bluetooth low energy / HM-10
$4.12 FREE
XR2206 Function Signal Generator DIY Kit
sine&triangle&square output / 1Hz-1MHz
$8.20 FREE
Multi-Function Funduino Nano Shield Nano Sensor Expansion Board
works w/ official Arduino boards
$2.66 FREE
KR1201A & KT05 433MHz Wireless Remote Control Relay Receiver Module
1*RF Transmitters 2 button+ 2*receiver 1CH / 12V / 5-20s delay setting / 100m remote control
$7.66 FREE