thedalles77
Published © Apache-2.0

Tesla Battery Charge Reminder

Arduino Nano or ATTiny85 sounds a buzzer if the Tesla is in the garage for more than 30 minutes without being plugged in.

IntermediateFull instructions provided748
Tesla Battery Charge Reminder

Things used in this project

Hardware components

ATtiny85
Microchip Technology ATtiny85
Arduino Nano can be used instead of the ATtiny85
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Arduino Nano R3
Arduino Nano R3
ATTiny85 can be used instead of the Nano
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Custom fabricated PCB
OSH Park Custom fabricated PCB
ATTiny Eagle board file can be downloaded from https://github.com/thedalles77/Tesla-Battery-Charge-Reminder This board is not needed if using a Nano.
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8 pin DIP socket
Needed only for the ATTiny85, not the Nano
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Chassis Mount Barrel Jack
Needed only for the ATTiny85, not the Nano
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Ultrasonic Sensor - HC-SR04 (Generic)
Ultrasonic Sensor - HC-SR04 (Generic)
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Normally Open Push Button Switch
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S8050 NPN Transistor
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Active Buzzer
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5 volt Wall Wart Power supply
Not needed if using a Nano because 5 volts comes in on the USB cable.
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ABS Project box
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Resistor 1k ohm
Resistor 1k ohm
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Through Hole Resistor, 680 ohm
Through Hole Resistor, 680 ohm
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Capacitor 10 µF
Capacitor 10 µF
Needed for the ATTiny85 power bypass, not for the Nano
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Ceramic Disc Capacitor, 0.1 µF
Ceramic Disc Capacitor, 0.1 µF
Needed for the ATTiny85 power bypass, not for the Nano
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5 mm LED: Red
5 mm LED: Red
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Software apps and online services

Arduino IDE
Arduino IDE
https://www.arduino.cc/en/software

Hand tools and fabrication machines

Tiny AVR Programmer
Not needed if using a Nano because it is programmed via USB.

Story

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Schematics

ATTiny85 Based Buzzer Schematic

Arduino Nano Based Buzzer Schematic

Tesla-Battery-Charge-Reminder

Arduino sounds a buzzer if the Tesla is in the garage but not plugged in.

Code

Attiny_Buzzer

ATTiny85 code for the Tesla Battery Charge Reminder

Arduino_Buzzer

Arduino Nano code for the Tesla Battery Charge Reminder

Credits

thedalles77

thedalles77

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