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RM9.90
FEATURES Chip: MQ-4 LM393 comparator Trigger Level configuration Potentiometer Detecting Concentration : 200 ~ 10,000 ppm Voltage for Operating: DC 5V Circuit: 5V ±0.1 AC or DC […]
RM12.00
Features Operating Voltage is +5V Can be used to detect LPG or Butane gas Analog output voltage: 0V to 5V Digital Output Voltage: 0V or 5V […]
RM9.90
Specification: Size: 32mm x 20mm x 22mm High sensitivity to LPG, iso-butane, propane Low sensitivity to alcohol and smoke Fast response component Have stable and long […]
RM12.00
Specification: Power supply: 5VDC Interface type: Analog, Digital High sensitivity to carbon monoxide Fast response Stable and long life Size: 32x20mm
RM9.90
Specification: Power supply needs: 5V Interface type: Analog, Digital High sensitivity to Hydrogen (H2) Small sensitivity to alcohol, LPG,cooking fumes Stable and long life Size: 32x20X20 […]
RM9.90
Specification: Power supply: 5V Interface type: Analog, Digital Type: Semiconductor Concentration:Good sensitivity to CO/Combustible gas -10-1000ppm CO -100-10000ppm combustible gas High sensitivity to Methane, […]
RM33.00
Features NodeMCU based on ESP-WROOM-32 module 30 GPIO Version ESP32 is a dual-core 32-bit processor with built-in 2.4 GHz Wi-Fi and Bluetooth 4MByte flash memory 520KByte […]
RM20.00
This attractive miniature OLED (Organic Light-Emitting Diode) display with 128×64 resolution at a 0.96-inch screen size comes in handy when you wish to add a display to your project. […]
RM1.50
Piezo Passive Buzzer Element Enclosed Passive Buzzer Element 85dB 3.5mA 30×5.5mm 100+-500Hz 3g
RM5.00
The Light sensor module comes with the basic components for light detection. Supplying power and it is good to be used. Use it to detect the light brightness in your environment and decide to switch OFF or ON light. Or maybe adjust the brightness of the LED for your house? It comes with digital and analog output. You can adjust the threshold (sensitivity) of the digital output by tuning the onboard variable resistor (potentiometer). Simple usage as it is a digital output, so you will know if the light is presented and decide what to do with it. Check the schematic for more details.
RM5.00
1, the use of sensitive photosensitive resistance sensor 2. Comparator output, clean signal, good waveform, strong driving ability, over 15mA. 3, with adjustable potentiometer adjustable light […]
RM8.50
* Operating Voltage Range: DC4.5-20V * Static Current: <60uA * Output Level: High 3.3V / Low 0V * Trigger: Repeatable Trigger (Default) * Delay Time: Default […]