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Micro SD TF card reader module SPI interface with chip level conversion
Support Micro SD card, Micro SDHC card (high speed card)
board level conversion circuit, namely the interface level for 5V or 3.3V
power supply is 4.5V ~ 5.5V, 3.3V voltage regulator circuit board
The communication interface is a standard SPI interface
M2 screw positioning holes for easy installation

Infrared IR Wireless Remote Control Sensor Module Kits for Arduino
For Arduino suite by ultrathin Mini infrared wireless remote control infrared remote control and 38 KHZ infrared receiving module,
the Mini ultra-thin has 20 function keys, the infrared emission furthest distance up to 8 meters,
very suitable for indoor control devices of all kinds.
Infrared remote control receiving module can receive standard 38 KHZ modulation signals, by means of programming the Arduino,

28BYJ-48 DC 5V Stepper Motor + ULN2003 Driver Test Module Board
Drive Module Board ULN2003
28BYJ-48 Stepper motor

CH340 Serial Port Debugger USB to TTL Converter CH340G module STC Download Cable Adapter Module

5V 2 Channel SSR Solid State Relay Board Power Switch High Level Trigger
Working Voltage: DC 5V
Working Current: 160mA
Input Control Voltage: 0-2.5V(low level,OFF), 3.3-5V(high level, ON)
Compatible Load: AC 100-240V 2A
Module Size: 55 X 33 X 25mm/2.17 X 1.30 X 0.98inch(L*W*H)

5V Relay 1 Channel SSR Low Level Solid State Relay Module 250V 2A

1W 6V 200ma Mini Small Solar Panel Module DIY Polysilicon Solar Epoxy Cell Charger- Product Name: Solar Panel; Voltage: 6V;Power:1W- Main Color: Black,Green;Size: 110 x 60mm / 4.3 x 2.4 inch (L*W);Thickness: 2.9mm/0.1 inch

3W 12V 250ma Mini Small Solar Panel Module DIY Polysilicon Solar Epoxy Cell ChargerUFFICIENT ENERGY: High conversion rate, high efficiency output, excellent weak light effect.PORTABLE: Mini solar panel, compact & stylish size, easy to be held, can be easily taken to outdoor activity.HIGH QUALITY: High quality epoxy resin, unique technology to make the components beautiful and strong, anti-wind and snow, increase the service life of solar panels.

Arduino Sensor Shield V5.0 Sensor Expansion Board for Arduino UNO R3
Upgraded V5 Arduino Sensor Shield
Buckled brick cables
Size: 57 x 57 x 19mm
Buckled port with VCC, GND and Output

4 Channel 5v Relay Shield Module for Arduino UNO R3

Standard for Shield interfaces and shape
Can continue to stack other for expansion boards
3 M3 screw positioning holes for easy installation
High Drive (5V or 3.3V) normally open contact closure
Onboard relay indicator (red)

1 Channel 5V Relay Module Low level Trigger    1-Channel relay module, with photoelectric isolation    dc or ac signal control, can control 220 v ac load    5v relay, low level trigger

L293D WiFi Motor Drive Expansion Board Shield Module for NodeMCU CP2102
Motor power, control power separation; In the experiment, by short-circuiting block the merger, the VIN and VM short, while power to the motor and the control board
Module provides short-circuit sub (short the VM and VIN), you can easily use one power (must 4.5V ~ 9V) while completing motor drive and control