Voltmeter can measure voltage up to 50VDC. It automatically calibrates when voltage of power supply is unstable.
Project tutorial by IoT_hobbyist
Without hard code, a number of email addresses are set via web. Saved to EEPROM. Arduino sends the notification to these email on events.
Using Serial. println(temp) to send real-time temperature to web. Optionally, we can see daily or hourly graph of temperature in real-time.
Arduino 2 axis robotic arm with a robotic claw gripper. Can be controlled with your PC, potentiometers and even with your phone.
Project tutorial by Nova
Remotely control door via web with pattern password protected. Your door is securely controlled from anywhere through Internet.
Project tutorial by phpoc_man
You just need to print it out. See code in this tutorial: https://arduinogetstarted.com/tutorials/arduino-temperature-humidity-sensor-lcd
You can see this tutorial: https://arduinogetstarted.com/tutorials/arduino-temperature-sensor-lcd
Delete the library you install and install new library according to the instruction in this tutorial: https://arduinogetstarted.com/tutorials/arduino-temperature-humidity-sensor-lcd
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