This is a 5V 4-Channel Relay interface board, Be able to control various appliances, and other equipments with large current. It can be controlled directly by Micro-controller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic) .
Features:
5V 4-Channel Relay interface board, and each one needs 15-20mA Driver Current
Equiped with high-current relay, AC250V 10A ; DC30V 10A
Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)
Using the five-channel flame sensor design, a wide detection range (Ordinary single flame sensor detection range is probably around 30 degree, as the distance increases, the range is gradually reduced, the detection range of the product is greater than 120 degree)
Able to output a digital signal (high and low), easy to use
Can output an analog signal (voltage signal), can be more accurate measurement of signal, for high precision occasions
Five outputs all have a status indicator which is convenient in debug and application
Digital output detection range is adjustable, analog output sensitivity adjustable with more flexible design
Uses 1% resistor design
A more accurate signal input, suitable for the needs of high-precision measurement occasions
On-board M3 mounting holes for easy installation; 3.3V~9V power supply, is compatible with most of the single-chip microcomputer system
SMD devices are used in all SMT process automatic soldering, military quality you can trust
Flame wavelength measurement range: 700~1100nm of short wave IR (SW-NIR), output via voltage signal.
This is a 8-Channel Relay interface board, Be able to control various appliances, and other equipments with large current. It can be controlled directly by Microcontroller(Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic) .
Features:
8-Channel 5V Relay interface board, and each one needs 15-25mA Driver Current
Equiped with high-current relay, AC250V 10A ; DC30V 10A
Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)
Each one needs 15-20mA Driver Current
Equiped with high-current relay : DC30V 10A AC250V 10A
8 channels are active high, ie, high relay
Each relay has normally open and normally closed contact
The 8 channels are optically isolated, safe, reliable, high noise immunity
Can be selected by jumper relay and TTL or ground
With power indicator. 8-way road has a status indicator
With a relay coil to absorb the diode protection
Color: Red & Blue
Item size: 140*54*18mm
Net weight: 123g
The Leonardo is arduino's first development board to use one microcontroller with built-in USB. Using the ATmega32U4 as its sole microcontroller allows it to be cheaper and simpler. Also, because the 32U4 is handling the USB directly, code libraries are available which allow the board to emulate a computer keyboard, mouse, and more using the USB-HID protocol!
It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.