RoboJax Arduino Relay Timer with LCD1602-I2C V1.1
This code uses an Arduino as a timer to control a relay with a potentiometer and an LCD1602-I2C. You can set it from 0 to any number of seconds. There is virtually no limit. Fig. 1 Schematic diagram for Robojax Relay Timer V 1.1 with LCD1602-I2C To have finer control over the time setting, especially for times above 100 seconds, use two potentiometers with values in a 1:10 ratio (one is 10 times larger than the other). For example, for coarse control, use a 100kΩ variable resistor and for fine control, use a 10kΩ resistor, and connect them as shown in Fig. 2. Fig. 2 Wiring of fine and coarse control for two potentiometers图像
Robojax Arduino Relay timer with LCD1602-I2C V 1.1
Robojax Arduino Relay timer with LCD1602-I2C V 1.1
164-RoboJax Arduino Relay Timer with LCD1602-I2C V1.1
语言: C++
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外部attachInterrupt()arduino.cc
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外部输入上拉电阻和使用电阻的原因（视频）youtu.be
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