Arduino

?Key Features :

1. High precision
2. Capacitive type
3. Full range temperature compensated
4. Relative humidity and temperature measurement
5. Calibrated digital signal
6. Outstanding long-term stability
7. Extra components not needed
8. Long transmission distance
9. Low power consumption
10. 4 pins packaged and fully interchangeable

?Key Features :

• • • Model:?DRV8825
    • Supply Voltage:?8.2 ? 42 VDC.
    • Current Capacity :?2.2A max(24V).
    • Continuous current per phase:?1.5 A.
    • Minimum Logic voltage:?2.5V.
    • Maximum Logic Voltage:?5V.
    • Microstep resolutions:?full, 1/2, 1/4, 1/8, 1/16, and 1/32.
    • Dimensions?: 15 x 20 mm.
    • Weight:?4 gm.
    • Microstep resolutions:?full, 1/2, 1/4, 1/8, 1/16, and 1/32.
    • Simple step and direction control interface
    • Six different step resolutions: full-step, half-step, 1/4-step, 1/8-step, 1/16-step, and 1/32-step
    • Adjustable current control lets you set the maximum current output with a potentiometer. Hence lets you use voltages above your stepper motor?s rated voltage to achieve higher step rates
    • Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay)
    • 45?V maximum supply voltage
    • Built-in regulator (no external logic voltage supply needed)
    • Can interface directly with 3.3?V and 5?V systems
    • Over-temperature thermal shutdown, over-current shutdown, and under-voltage lockout
    • Short-to-ground and shorted-load protection
    • 4-layer, 2?oz copper PCB for improved heat dissipation
    • Exposed solderable ground pad below the driver IC on the bottom of the PCB

?Key Features :

1. 802.11 b/g/n
2. Wi-Fi Direct (P2P), soft-AP
3. Integrated TCP/IP protocol stack
4. Integrated TR switch, balun, LNA, power amplifier and matching network
5. Integrated PLLs, regulators, DCXO and power management units
6. +19.5dBm output power in 802.11b mode
7. Power down leakage current of <10uA
8. 1MB Flash Memory
9. Integrated low power 32-bit CPU could be used as an application processor
10. SDIO 1.1 / 2.0, SPI, UART
11. STBC, 1?1 MIMO, 2?1 MIMO
12. A-MPDU & A-MSDU aggregation & 0.4ms guard interval
13. Wake up and transmit packets in < 2ms
14. Standby power consumption of < 1.0mW (DTIM3)

?Key Features :

• • 100% brand new and high quality.
  • ESP32 is already integrated antenna and RF balun,power amplifier,low-noise amplifiers,filters,and power management module.
  • The entire solution takes up the least amount of printed circuit board area.
  • This board is used with 2.4 GHz dual-mode Wi-Fi and Bluetooth chips by TSMC 40nm low power technology,power and RF properties best,which is safe,reliable,and scalable to a variety of applications.
  • High performance-price ratio.
  • Small volume,easily embeded to other products.
  • Strong function with support LWIP protocol,Freertos.
  • Supporting three modes:AP,STA,and AP+STA.
  • Supporting Lua program,easily to develop.

?Key Features :

• • HC-05 Bluetooth Module In PakistanTTL Module (With EN Pin) Breakout is the latest Bluetooth wireless serial Module. This version of the popular Bluetooth module uses the HC-05. These modems work as a serial (RX/TX) pipe. Any serial stream from 9600 to 115200bps can be passed seamlessly from your computer to your target. The remote unit can be powered from 3.3V up to 6V for easy battery attachment. All signal pins on the remote unit are 3V-6V tolerant. No level shifting is required.

?Key Features :

• • • Works with any USB Bluetooth adapters.
    • Default Baud Rate: 9600,8,1,n.
    • Built in antenna.
    • Coverage up to 30ft.
    • Bluetooth version: V2.0+EDR
    • Operating voltage: 3.3V
    • Default Baud Rate: 9600,8,1,n.
    • Signal coverage: 30ft
    • Item size: 4.3 * 1.6 * 0.7cm
    • Item weight: 3g
    • Package size: 9 * 3 * 1cm
    • Package weight: 8g
    • Commercial Series: Bluetooth module board Series
    • With LED indicator light, use 150mA and 3.3V regulation chip.
    • With VCC.GND.TXD.RXD foot for the Bluetooth
    • With ?Re-seach? button(ON/OFF/WAKE foot for it , external MCU outinput ?High level? can control module to re-seach)
    • Compatible with bluetooth master module?.slave module?or master-slave(whole) module.
    • Input voltage: 3.3~6V
    • Size: 1.55cm*3.98cm

?Key Features :

1. A Color-Coded Cable, with a standard male header connectors. Plug it straight into an Arduino or a Breadboard. No soldering is required.
2. The Pulse Sensor has 3 holes around the outside edge which make it easy to sew it into almost anything.
3. Visualization software (made in Processing) to instantly see the output of the sensor and for troubleshooting.

?Key Features :

1. Temperature and Humidity displayed in HUGE 1″ high numbers.
2. MAX / MIN Humidity & Temperature are recorded automatically and can be reset by the user
3. Fahrenheit or Celsius readout (changeable by selecting F or C on the back)
4. 12 or 24 hour time modes (changeable by using MODE & ADJ button to set)
5. ALARM function
6. MONTH & DAY display available by pushing ADJ button
7. Integrated back stand for desktop or table use OR hanging hole for wall mounting
8. Power: ONE standard AAA 1 .5v Battery
9. Time, and Temperature display, Humidity display; With the calendar, alarm clock and the maximum or?minimum value of humiture memory functions; the convert of temperature and degree?Fahrenheit, Talkclock.

?Key Features :

1. • 5V power supply.
   • Serial I2C control of LCD display using PCF8574.
   • The backlight can be enabled or disabled via a jumper on the board.
   • Contrast control via a potentiometer.
   • Can have 8 modules on a single I2C bus (change address via solder jumpers)address, allowing.
   • Size ?41.6 x 19.2 mm.

?Key Features :

1. Mechanical structure, easy to install.
2. This car has tachometer encoder
3. With 4 cell AA battery holder and power switch.
4. Can be used for distance measurement, velocity.
5. Can use with other devices to realize the function of tracing, obstacle avoidance, distance testing, speed testing, wireless remote control.
6. Gear Motor reduction radio: 1:48.
7. Size: 22cm x 14.7cm, wheel size: 7cm x 7cm x 2.6cm.
8. Note: motor power supply is 3V~6V.

?Key Features :

1. • Small and compact size, making it easy to integrate into your project
   • Produces a loud and clear sound that can be heard from a distance
   • Can be easily controlled with a microcontroller or other digital circuit
   • Low power consumption, making it suitable for battery-powered projects

?Key Features :

• • • Current Sense for each motor
    • Heatsink for better performance
    • Power-On LED indicator
    • Dual H Bridge Motor Driver
    • L298N motor driver IC
    • Drives up to 2 bidirectional DC motors
    • Integrated 5V power regulator
    • 5V ? 35V drive voltage
    • 2A max drive current

?Key Features :

1. Dimensions: 33 x 115 x 8(L x W x H ) mm.
2. Weight: 4gm.
3. main chip: LM393.
4. working voltage: DC 3-5V
5. Signal output indicator light.
6. LDR module 4 PIN
7. Operating voltage 3.3V-5V
8. Able to detect ambient brightness and light intensity Adjustable sensitivity (via blue digital potentiometer adjustment)
9. Output: DO digital switch output (0 and 1), AO analog voltage output Compatible with Arduino, Raspberry and other microcontroller board.

?Key Features :

1. 1. 1. Independent interface:
         • The light-emitting module controls the red, yellow, and green lights separately, a total of four independent interfaces.
      2. Fast response:
         • The light-emitting module can respond super fast, with strong anti-interference ability and high-cost performance.
      3. Good performance:
         • The light-emitting module has ultra-low energy consumption, long transmission distance, and is very reliable.