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Various radio frequencies are used for transmission and reception
1 × Gas Sensor MQ135
What does the Dust Sensor GP2Y1014AUOF for Arduino measure
gas detection Gas Analog CH4 Gas Sensor MQ4 For Arduino gas sensor with analog output adjustable sensing range
current checks
OLED Display 1.3" I2C - 128x64 Monochrome SSD1306 ov7670 Various radio frequencies are usedCrisp Graphics in a Compact OLED Module The OLED 1. 3 I2C is a compact OLED display made for sharp text, icons, and simple graphics in electronics projects. It is a strong option when you want a small screen that looks cleaner and more modern than a basic character display. OLED modules are useful for portable projects, dashboard readouts, menu systems, and compact sensor displays. They are often paired with Arduino, ESP32, and other small
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