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This capacitive touch sensor module uses the TTP229 integrated circuit, making it easy to add capacitive touch input to your project. It features 16 sensitive touch pads that make an ideal replacement for the old fashioned keypads.
Specifications:
-On-board 16-key TTP229 capacitive touch sensor IC -On-board power indicator LED -Working Voltage Range: 2.4 V to 5.5 V -Configurable output mode -PCB Size: 49.3 x 64.5 mm -
HLK-RM04 is a new embedded UART-ETH-WIFI module (serial port - Ethernet -Wireless network). This product is an embedded module based on the universal serial interface network standard, built-in TCP / IP protocol stack, enabling the user serial port, Ethernet, wireless network (wifi) interface between the conversions. Through the HLK-RM04 module, the traditional serial devices do not need to change any configuration; data can be transmitted through the Internet network. Provide a quick solution for the user’s serial devices to transfer data via Ethernet.
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40KHz Ultrasonic Transducer Transmitter and Receiver Pair. These transducers are very useful in making various sensors for detecting obstacles and measuring distances. Features Use for motion or distance sensing Frequency: 40kHz ±1.0kHz Aluminum case Capacitance: 2000pF ±20% Transmitter: bandwidth 5.0kHz/100dB, sound pressure level 112dB/40 ±1.0kHz Receiver: bandwidth 5.0kHz @ -75dB, min. sensitivity 67dB/40 ±1.0kHz (0dB vs. 1V µbar) R=3.9k. Lead length/spacing: 0.28" Case size: 0.30"H x 0.43" Dia.
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Description: The GY8511 breakout is an easy to use ultraviolet light sensor. The MP8511 UV (ultraviolet) Sensor works by outputing an analog signal in relation to the amount of UV light that’s detected. This breakout can be very handy in creating devices that warn the user of sunburn or detect the UV index as it relates to weather conditions.This sensor detects 280-390nm light most effectively. This is categorized as part of the UVB (burning rays) spectrum and most of the UVA (tanning rays) spectrum. It outputs a analog voltage that is linearly related to the measured UV intensity (mW/cm2). If your microcontroller can do an analog to digital signal conversion then you can detect the level of UV!