3 Wires 0.28 inch Digital Voltmeter DC 0-100V Red Light LED Panel Voltage Meter
- Display ON Voltage: 3 V
- Measurable Voltage Range: 0 to 100V
- Current Consumption: 10 mA
- Refresh Speed: 200ms (one time)
- Minimum Input: 3 V
- Highest Input: 30 V
- Accuracy: 0.1 V
- Colour: Red
- Wires: 3
- Operating Temperature: -10 to 60 degrees C
- Holes for Mounting: 3 mm
- Very small and lightweight voltmeter module.
- Very handy and easy to use.
- Red LED display.
- Best operates in the working voltage range of 5V to 24V
- Dimension: 13*30*9mm
- Weight: 3gm
SEN-PPI35 PP Aquarium Liquid Water Level Sensor Float Switches Normally Open
MT8870 DTMF Audio/Speech Decoding Telephone Module
- Power Input: 5V Nominal (4.5V - 5.5V)
- 5 Channel Interface
- Detects 0-9, A-D, *, #
- 54” Pin pitch
- On-board 3.5mm jack input Facility
- On-board MT8870 frequency decoder chip
- On-board voice input interface
- On-board LED lights for output state indication
- Low power consumption
- Internal gain setting amplifier
- Adjustable guard time
- 5 Channel interface
- Power-down mode
- Inhibit mode
- Does not require external circuits or wiring,
- Dimension: 37 x 25 x 12 mm
Mini 0.36 Digital Voltmeter DC 4.7-32V 2 Wires Voltage Panel Meter LED Display – Red
- Measurement range: 4.7V to 30V DC
- Only 2 wires, derives supply from the source
- Operation current: < 30mA
- Display colour: RED
- Measurement Error tolerance: +/- 2 percent
- Distance between mounting holes: 26mm
- Current Consumption: < 15 mA.
- Accuracy: 0.1 V.
- Wire length: 18cm.
- Refresh Speed : Approx. 200mS/time.
- Very small and lightweight voltmeter module.
- Very handy and easy to use.
- LED display.
- Best operates in the working voltage range of 5V to 24V
- Dimension: 30mm x 12mm x 8.5mm
USB for DIY charger 5V Step-Up Power Module Lithium Battery Charging Board
- Input Voltage:3.7V~5.5V
- Charging Current:1A(max)
- Output Current:1A(max)
- Output voltage:5V
- BAT Discharging Stop Voltage: 2.9V.
- Discharging Efficiency:85%(input 3.7V output 5V/1A).
- Charging and discharging indication.
- Internally installed charging and discharging power MOS.
- Preset 4.2V charging voltage, precision ±1%.
- Max 8uA standby current.
- Integration charging management and discharging management.
- Intelligent temperature control and overtemperature protection.
- Integration output overvoltage protection, short circuit protection, overload protection.
- Integration overcharging and over-discharging protection.
- Support trickle mode and zero voltage charging.
- When charging: red light flashing.
- Fully charged: Red light glows for a long time
GT2 20 tooth bore 8mm width 10mm pulley
Servo Mount Bracket for SG90 MG90
Antenna GSM-2DBI (Spring)
- Gain: 2dBi
- Lower VSWR ≤ 2.0
- Signal stability.
- Cable Length: 3m
- Antenna Height: 28cm
- Polarization Vertical Impedance- 50 Ω
- Material: Metal
- Colour: Black
- Operation Temperature: -30~60 degree C
- Humidity: 5% to 95%
- Connector type: SMA Male Plug
- Compact size.
- Good appearance.
- Strong adaptability of environment.
- Package includes:
ESP8266 ESP – 01
- 11 b/g/n
- Wi-Fi Direct (P2P), soft-AP
- Integrated TCP/IP protocol stack
- Integrated TR switch, balun, LNA, power amplifier and matching network
- Integrated PLLs, regulators, DCXO and power management units
- +19.5dBm output power in 802.11b mode
- Power down leakage current of <10uA
- 1MB Flash Memory
- Dimensions: 25 x 15 x 11 mm (LxWxH)
- PCB Thickness: 1mm
- Weight: 2 gm
- SDIO 1.1 / 2.0, SPI, UART
- STBC, 1×1 MIMO, 2×1 MIMO
- A-MPDU & A-MSDU aggregation & 0.4ms guard interval
- Wake up and transmit packets in < 2ms
- Standby power consumption of < 1.0mW (DTIM3)
- Integrated low power 32-bit CPU could be used as an application processor
- A-MPDU & A-MSDU aggregation & 0.4ms guard interval
- Wake up and transmit packets in < 2ms
- Standby power consumption of < 1.0mW (DTIM3)
ESP8266 ESP-12E
- LDR Light Sensor on board.
- WS2812 Led on board.
- Wireless Standard: IEEE 802.11 b/g/n protocol
- Frequency Range: 2.412 - 2.484 GHz
- Serial Transmission: 110 - 921600 bps, TCP Client 5
- SDIO 2.0, SPI and UART Interface available
- PWM available
- One ADC channel is available
- Programmable GPIO available
- Wireless Network Type: STA / AP / STA + AP
- Security Type: WEP / WPA-PSK / WPA2-PSK
- Encryption Type: WEP64 / WEP128 / TKIP / AES
- Network Protocol: IPv4, TCP / UDP / FTP / HTTP
- Operating Voltage: 3.3V
- Maximum current allowed to draw per pin: 15mA
- Power down leakage current of < 10uA
- Integrated low power 32-bit MCU
- Onboard PCB Antenna
- Wake up and transmit packets in < 2ms
- Standby power consumption of < 1.0mW
- Operating Temperature: -40ºC to +125 ºC
TowerPro SG90 Mini Servo – 180 degree Rotation
-
- Model: SG90
- Operating voltage: 3.0V- 7.2V
- Servo Plug: JR
- Stall torque @4.8V : 1.2kg-cm
- Stall torque @6.6V : 1.6kg-cm
- Torque: 2.5kg/cm
- Operating speed is 0.1s/60°
- Gear Type: Plastic
- Rotation : 0°-180°
- High resolution
- Accurate positioning
- Fast control response
- Constant torque throughout the servo travel range
- Excellent holding power
- Weight: 9 gm
