3V To 5V 1A USB Charger Step Up Boost Module
- Module properties: Non-isolated step-up module (BOOST).
- Input voltage: 2.5-6V.
- Output voltage: 4-12 V (Adjustable (need to replacing the resistance to adjustable), the default 5 v).
- Output current: 1000mA (Max).
- Efficiency: 92% (Max) (the higher the input voltage, the higher the efficiency).
- Switching frequency: 1MHz.
- Output ripple: 20mV (MAX).
- Operating temperature: Industrial (-40°c to +85°c).
- Voltage regulation: ±2.5%.
- Short circuit protection: None
- Input: IN + postive, IN - negative.
- Output: USB output.
- Dimension: 3 x 1.3 x 0.8cm.
4 Bits Tube Led Display Module Four Serial for Arduino 595 Driver
- Display common anode for the four red LEDs.
- Digital tube 8 Gray Adjustable.
- Level control interface for 5V or 3.3V.
- 4 M2 screws positioning holes for easy installation.
- Ease to use.
- Ease of multiplexing.
- Can use as a 4 digit display unit.
- Can use as a clock display.
- Used for Electrical/Electronic projects.
- Dimension: 42X24X12mm
Digital PAM8610 2*15w dual channel stereo class amplifier board 12V
Mini SMD NRF24L01 2.4G Wireless Data Transmission Module
- Maximum operating speeds up to 2Mbps
- GFSK modulation efficiency, Anti-interference ability,
- Built-in hardware CRC error detection, Multipoint communication address control.
- Low-power 1.9 to 3.6V, only 1uA on Power-down mode
- Built-in 2.4Ghz antenna
- Built-in voltage regulator
- 125 Channels, Multi-point communication, and frequency hopping to meet the communication needs
- Wireless transceiver including Frequency generator, enhanced type, SchockBurstTM, mode controller, power amplifier, crystal amplifier, modulator, demodulator
- The output power channel selection and protocol settings can be set extremely low current consumption, through the SPI interface
- In the transmit mode, the transmit power is 6dBm, the current is 9.0mA, the accepted mode current is 12.3mA, the current consumption of the power-down mode and standby mode are lower
- Standard DIP Pitch Interface for embedded applications.NRF24L01 SPI interface: hardware SPI port, MCU I/O ports
- Internal FIFO compatible with a variety of microprocessor interface, micro-controller is convenient
RF Transmitter Receiver Module 315MHz Wireless
Transmitter Module
- Operating voltage: 3V to 12V
- Operating frequency: 433.92MHz; 315MHz
- Standby current: 0mA
- Operating current: 20mA to 28mA
- Transmission distance: >500m (open to receiving plate sensitivity at -103dBm distance of more than)
- Output power: 16dBm (40mW)
- Data transfer rate: <10Kbps
- Modulation mode: OOK (amplitude modulation)
- Operating temperature: -10℃ to +70℃
-
- Operating voltage: 5V DC
- Static current:4mA
- Receiver frequency: 433.92MHz; 315MHz
- Sensitivity: -105dB
- External antenna: 32CM single wire spiral
- No of pins: 4
ULN2003 Driver
- Contains 7 high-voltage and high current Darlington pairs
- Each pair is rated for 50V and 500mA
- Input pins can be triggered by +5V
- All seven Output pins can be connected to gather to drive loads up to (7×500mA) ~3.5A.
- Can be directly controlled by logic devices like Digital Gates PIC etc
- Available in 16-pin DIP, TSSOP, SOIC packages
- Dimensions: 32 x 18 x 11mm (LxWxH)
- Weight: 3 gm
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
MQ6 SENSOR
- Power requirements: VCC - 5V±0.1
- DO output: TTL digital 0 and 1 (0.1 and 5V)
- AO output: 0.1-0 .3 V (relative to pollution), the maximum concentration of a voltage of about 4V
- Detection Gas: LPG, iso-butane, propane, and LNG
- Detection Concentration: 200-10000ppm
- Heating voltage: 5V±0.1
-  Load resistance: 20KΩ
-  Heater resistance: 33±10%
- Â Heating consumption: less than 750mw
- Operating temperature:-10℃-50℃
- Related humidity less than 95%Rh
- Sensing Resistance: 10KΩ- 60KΩ (1000ppm LPG)
- Preheat time: Over 24 hour
- High sensitivity to LPG, iso-butane, propane
- Small sensitivity to alcohol, smoke.
- Fast response
- Simple drive circuit
MQ5 SENSOR
- Power requirements: VCC - 5V±0.1
- DO output: TTL digital 0 and 1 (0.1 and 5V)
- AO output: 0.1-0 .3 V (relative to pollution), the maximum concentration of a voltage of about 4V
- Detection Gas: LPG, natural gas, town gas
- Detection Concentration: 300-10000ppm
- Heating voltage: 5V±0.1
-  Load resistance: 20KΩ
-  Heater resistance: 31±10%
- Â Heating consumption: less than 800mw
- Operating temperature:-10 to 50°C
- Related humidity less than 95%Rh
- Sensing Resistance: 10KΩ- 60KΩ (1000ppm CH4)
- Preheat time: Over 24 hour
MQ4 Sensor
- Power requirements: VCC - 5V±0.1
- DO output: TTL digital 0 and 1 (0.1 and 5V)
- AO output: 0.1-0 .3 V (relative to pollution), the maximum concentration of a voltage of about 4V
- Detection Gas: Natural gas/Methane
- Detection Concentration: 200-10000ppm (Natural gas / Methane)
- Interface: 1 TTL compatible input (HSW), 1 TTL compatible output (ALR)
- Heater consumption: less than 750mw
- Operating temperature: 14 to 122 °F (-10 to 50°C)
- Â Related humidity less than 95%Rh
- Load resistance: 20KΩ
- Sensing Resistance: 10KΩ- 60KΩ (1000ppm CH4)
- Preheat time: Over 24 hour
- Standard Encapsulation Bakelite, Metal cap
MQ2 Sensor
- Operating Voltage: +5V
- Can be used to Measure or detect LPG, Alcohol, Propane, Hydrogen, CO, and even methane
- Analogue output voltage: 0V to 5V
- Digital Output Voltage: 0V or 5V (TTL Logic)
- Preheat duration 20 seconds
- Can be used as a digital or analogue sensor
- Load resistance: 20 KΩ
- Heater resistance: 33Ω ± 5%
- Heating consumption: <800mw
- Sensing Resistance: 10 KΩ – 60 KΩ
- Detection range: 200 – 10000ppm
- Preheat Time: Over 24 hour
- High sensitivity to LPG, Propane, and Hydrogen
- The Sensitivity of a Digital pin can be varied using the potentiometer
Analog Hall Magnetic Sensor Module
- Operating Voltage: 3.3V-5V
- Wide range voltage comparator LM393
- Number of Pins: 4.
- Sensitivity is Adjustable.
- Output form digital switch output (0 and 1 high and low level)
- The output effective signal is a low level
- Signal output indicator with the retaining bolt hole, convenient installation
- When there is sound, outputs low level and the signal light
- Single-channel signal output
- Can be used for Acoustic control light, give sound and light alarm working with the Photosensitive sensor, and sound control, sound detect