1 CHANNEL 5V RELAY
- 1 channel relay board
- Operating voltage: 5V
- Maximum current: 2 A
- Relay contact current capacity of 10A @250 V AC/10A@ 30V AC
- configured as SINGLE POLE DOUBLE THROW( SPDT)
- LED status indicates relay ON/OFF state.
- Standard TTL level logic controlled
- One normally closed and one normally opened contact
- Compatible with any 5V microcontroller
- Dimension: 43*17*17mm
- Weight: 150gm
LoRa SX1278 433M 10KM Wireless Spread Spectrum Transmission Module Ra-02 SX1278 Socket IOT
- Lora Spread Spectrum Modulation Technology +20dBm-100mW
- Constant RF power output when voltage changes
- High sensitivity: low to -148dBm
- Half-duplex SPI communication Programmable bit rates up to 300kbps
- Supports FSK, GFSK, MSK, GMSK, LoRa and OOK modulation modes
- 127dB RSSI dynamic range
- Automatic RF signal detection
- CAD model and ultra-high-speed AFC With CRC, up to 256 bytes of the packet engine
- Small volume dual-row stamp-hole patch package
- With shielding shell Spring antenna (Ra-01) external antenna (Ra-02)
- Wireless standard 433MHz Frequency range: 420 ~ 450MHz
- Interface: SPI GPIO
- Operating Voltage:1.8 ~ 3.7V, the typical value is 3.3V
- Current: Receiver:≦ 10.8mA (LnaBoost off, band 1) Transimit: ≦ 120mA (+ 20dBm)
- Sleep mode: 0.2μA
- Working temperature: -40 to + 85 ° C
- Storage temperature: Normal
1×4 Key Matrix Switch Keypad
- Key Type: 4×1;
- Voltage: DC 12 Volt
- Mount Style: Self-Adherence
- Circuit Rating: 35 VDC, 100 mA.
- Contact Bounce : <=5ms
- Life Expectancy: 1 million closures
- Operation Temperature : -20 to +40 °C
- 5 pins 2.54mm pitch connector, 4×1 type 4 keys.
- Force: 250-350g
- Contact Bounce: Greater than 1s
- Cable Length: 52mm
- Ultra-thin design & adhesive backing provides easy integration to any project
- Excellent price-performance ratio
- Easy communication with any microcontroller
- Used widely in industrial and home electronic equipment's, instruments, etc.
LDR Module
- Operating Voltage:3V to 5V DC
- Operating Current: 15milli amps
- LED indicating output and power
- LM393 comparator chip
- Can detect ambient brightness and light intensity.
- Output Type :Â - Digital switching outputs (0 and 1) -D0
- Output Digital: 0V to 5V, Adjustable trigger level from preset
- Power indicator (red) and the digital switch output indicator (green)
- It can detect ambient brightness and light intensity.
- Adjustable sensitivity (via blue digital potentiometer adjustment).
- Output Digital – 0V to 5V, Adjustable trigger level from preset.
- Fixed bolt hole for easy installation
- PCB size: 3cm * 1.6cm
ECG Sensor Module – AD8232
- Single-supply operation: 2.0 V to 3.5
- Designed to extract, amplify, and filter small biopotential signals.
- Leads-Off Detection.
- Shutdown Pin.
- LED Indicator.
- Analog Output.
- 5 mm Jack for Biomedical Pad Connection.
- Single Lead Heart Rate Monitor is a cost-effective board used to measure the electrical activity of the heart.
- Fully integrated single-lead ECG front end
- Common-mode rejection ratio: 80 dB (dc to 60 Hz)
- Two or three-electrode configurations
- Qualified for automotive application
- Fast restore feature improves filter settling
- Dimension: 3.5cm x 3cm
SOUND SENSOR
- IC Chip: LM393
- Operating voltage: 3.3V-5V
- operating current: 4-5 mA
- Voltage gain 26 dB (v=6v, f=1khz)
- Sensitivity of the microphone (1khz) :52 to 48 dB
- The impedance of the microphone: 2.2k ohm
- Frequency of microphone: 16 to 20 kHz
- Signal to noise ratio: 54 dB
- Signal output indication
- The output is digital.
- Single-channel signal output.
- With the retaining bolt hole, convenient installation.
- Output low level and the signal light when there is sound.
- Dimension:45*17*9mm
- Weight: 5gm
DS1307 RTC MODULE
- DS1307 I2C real-time clock chip (RTC)
- Available in 8-pin DIP or SOIC
- Accessed via I2C protocol
- AT24C32 32K I2C EEPROM memory
- Bidirectional I2C interface.
- Hour:Minutes: Seconds AM/PM.
- Day Month, Date - Year.
- DS1307 based RTC with LIR2032 battery.
- 1Hz output pin.
- 56-byte non-volatile RAM for data storage
- 56 Bytes of Non-volatile memory for user
- The DS1307 is accessed via the I2C protocol.
- Consumes less than 500nA in battery backup mode with oscillator running
- Dimension: 27mm * 28mm * 8.4mm
I2C MODULE WITH 16*2 CHARACTER LCD
- Supply voltage: 5V
- Display mode: STN
- Display format: 16*2
- Input data: 4 bit or 8 bit (for LCD)
- I2C address: 0x20~0x27 (original address is 0x20,we can change it ourselves)
- Compatible with multiple communication logic levels: 2.8~5VDC
- Compatible for 16*2 LCD
- Serial I2C control of LCD display using PCF8574
- Allow data display via only 2 wires.
- Backlight and contrast adjustment by the potentiometer
- Supports 7 ASCII fonts, 5 graphic functions
- Supports 128 level backlight lightness adjustment.
- Support 64 level screen contrast adjustment
- Supports device address modification
- Dimension: 10*4*5cm
- Size: 150gm
3W LED Module High-Power with PCB Chassis for Arduino STM32 AVR
- Type: LED High Power Board
- Forward voltage: 3.3 – 3.6 V
- Reverse voltage: 5V
- Power: 3W
- Viewing angle: 180°
- Mainly Compatible with: Arduino
- 3W LED High Power Board for Indoor / Outdoor Display
- Colour temperature: Warm White 3000-3200K / white 6000-6500K
- Forward current: 700MA
- Luminous flux: White 180-200LM (lumens) , Red 90-100LM (lumens) , Green 80-90LM (lumens)
- Long life
- small size
- Material: PCB
2 CHANNEL 5V RELAY
- High current relay
- Two LED S to indicate relays ON/OFF status
- Low-level trigger expansion board
- Opto isolation circuitry
- Works with logic level signal 3.3V or 5V devices
- Can be used as normally open (NO) or normally closed (NC)
- Back EMF protection
- Ensures diode current protection
- AC control voltage: 250v @mx10A
- DC control voltage: 30V @max 10A
- Easy installation and fixing
4 Channel 5V Relay Module Shield For Arduino
- Product Type: 4-Channel relay module
- Dimensions: 75 mm x 55 mm x 19.3 mm
- Weight: 61 g
- Relay colour: Blue
- PCB colour: Blue
- Maximum output of relay: AC250V 10A and Dc30V 10A
- Number of Relays: 4
- Control signal type: TTL level
- Input voltage: 5v
- Compatible with: Arduino, AVR, PIC, ARM, Raspberry Pi etc
- Package contains: 1 piece of 4 channel relay module