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a desoldering pump
TTL / CMOS output level compatible
If the red indicator lights up
Three 16-bit analog-to-digital converters (ADCs) for digitizing the gyroscope outputs
Traffic Light LED Display Module Coin Machine a desoldering pumpIntroduction : Mini traffic light module: high quality LED display module. 3 colours: red, yellow, green. Vertical location. Input voltage power supply: 5V. Input: digital signal output from your Arduino or controller. Interface: Common cathode connection, individually controls both red, green and yellow. It can be controlled by PWM. Input High or Low level from controller to make LEDs ON or OFF. It just support controller to contorl. This module
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