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Lunar /Dial/ Chinese and English clock/timer (all support multi-groups)
Using top-quality material
test pen should leave the test point
Bluetooth motherboard 1 blocks
Leakage Voltage of Iron Tip: <0
Ky-038 Lm393 Sound Detection Module Touch Switch Module Lunar /Dial/ Chinese and EnglishLM393 Sound Detection Sensor Module for Arduino detects whether the sound has exceeded a threshold value. The sound is detected via microphone and fed into an LM393 op amp. The sound level setpoint is adjusted via an onboard potentiometer. When the sound level exceeds the setpoint, an LED on the module is illuminated and the output is sent low. Specifications and Features : Working voltage: DC 3. 3 5V. Dimensions: 36. 5 x 17 x 10 (LxWxH)mm. Signal
