IR Shield

Overview

IR Shield is designed for Arduino, which is equipped with infrared receiving and dispatching module, nRF24L01 interface, Xbee interface, Micro SD slot and temperature and humidity sensor. With this IR shield, you can intelligentize your home by making a DIY monitor for indoor temperature and humidity or a controller for IR home appliances such as air-condition and television.

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Features

• Compatible for 5/3.3V main board
• Micro SD card slot
• Xbee interface

Specification

PCB size	55.88mm X 68.58mm X 1.6mm
Power supply	5V DC
Indicators	PWR，LED1，LED2
Communication Protocol	UART,IIC,SPI

Electrical Characteristics

Parameter	Min.	Typical	Max.	Unit
Power voltage	4.5	5	5.5	VDC
Input voltage VinH (Target Voltage = 3.3V)	3	3.3	3.6	V
Input voltage VinH (Target Voltage = 5V)	4.5	5	5.5	V
Input voltage VinL	-0.3	0	0.5	V
Current Consumption	-	40	-	mA

Hardware

Pin Map

Arduino Pin	Description
D0	XBEE_TX
D1	XBEE_RX
D2	nRF24L01_IRQ & STD Button
D3	IR_TX*
D4	SD_CS
D5	IR_RX*
D6	LED1*
D7	LED2*
D8	-
D9	nRF24L01_CE
D10	nRF24L01_CS
D11	MOSI
D12	MISO
D13	SCK
A0	A0 Button
A1	-
A2	-
A3	-
A4	SHT10_SDA
A5	SHT10_SCL

• IR_TX: when D3 is set as high level switch, IR Diode will emit signals out. When D3 is set as low level switch, IR Diode won’t work.
• IR_RX: Use HS0038B as IR receiving module
• Jumpers:

Jumpers can directly connect to Arduino’s IO. If you don’t need them or their corresponding pins are occupied, you can remove the jumpers.

• A0: insert a 10K resistance to A0 button
• LED1: connect to D6 pin. If the output voltage is high, LED1 turns on.
• LED2: connect to D7 pin. If the output voltage is high, LED1 turns on.

• Switch: Set the switch level according to Arduino main board. When the mainboard is set in 5V, you should turn the switch to 5V; when in 3.3V, you should turn to 3.3V.

Instruction

Please refer to our blogs:

Download

• Schematic--File:IM140715001-IR Shield-schematic.pdf
• IR Receiver Datasheet--File:IM140715001-HS0038B.pdf
• SHT1x Datasheet--File:SHT1x_Datasheet.pdf
• Temperature & Humidity sensor demo--File:Sht10.zip

Useful Link

http://blog.iteadstudio.com/diy-intelligent-monitor-for-home-temperature-and-humidity/