We’re going to talk about 5 project ideas you can do for your bike with an Arduino card. The idea is to have projects that are simple to do and that can improve the use of your bike on a daily basis. Today we use more and more electronic objects in our bike without even realizing it. Whether it’s lights, speedometers or even electric bikes.
We will see different projects to bring more comfort or more features to your bike.
How about a light that turns on according to the darkness?
With Arduino it is possible! You can use a photoresistor that will capture the outside light and the Arduino board will adapt the intensity of the leds according to the darkness.
Then you just need to connect a battery to make the project autonomous.
The advantage of this project is that it is very simple to set up.
The negative point of this project is that the Arduino board consumes a lot of energy compared to the task it has to do. This can be annoying if the board is on battery. So you can think about replacing the arduino board by a microcontroller chip less powerful and less energy consuming.
This idea may seem a bit useless at first because speedometers are available on the market.
However, the advantage of the Arduino board is that you can make a project that corresponds exactly to what you want, with the examples mentioned above.
To make a speedometer, you will need a hall effect sensor and a magnet to detect the passage of the wheel. A hall effect sensor detects the variation of a magnetic field. It can be placed on the fork of the bike and the magnet on one of the spokes of the bike. When the magnet is approaching the sensor, this one is going to detect the variation of the field and thus to know that one made a turn of wheel.
You will also need an LCD screen to read the speedometer information.
This kind of bag is very useful for more safety. The other road users can know your next intentions and anticipate them.
For this you need to use pads or led strips that you will stick behind a backpack. You can then put the Arduino board in your bag with a battery to make the project autonomous.
You can use an infrared remote control with a receiver to control the different signals. The remote control can be placed on the handlebar.
You will then have to program different signals on the led strip: a right or left arrow. An arrow straight ahead to indicate that we continue straight ahead.
How about a lock that locks and unlocks with your fingerprint?
With Arduino it’s possible! For this you will need a fingerprint sensor.
You can connect the fingerprint sensor to the Arduino board so that it can check if the fingerprint matches the one registered.
Once the match is done, the arduino board will open the lock.
An Arduino board consumes a lot of energy. It is therefore necessary that it is turned off when not in use to avoid draining the battery.
You can use a switch between the battery and the Arduino board.
One way to simplify the project is to use an RFID sensor instead of the fingerprint sensor. This allows you to simplify the project while still using the lock securely.
You will then have a badge attached to your keys to unlock your padlock.
What about a GPS tag that tells you where your bike is in real time?
This can be very useful if you are afraid of having your bike stolen for example.
For this nothing very complicated, you will need a motor that you will drive with your Arduino board. For the choice of the motor, you can look at our stepper motor course. This motor must have enough torque to support the load of the bike plus you.
Then with a transistor between the battery, arduino board and motor you can manage the power given by the battery on the motor.
You can then have a small LCD screen that indicates the number of kilometers traveled since the last charge, the number of kilometers you can still do. To know this you can make a test by using the bike until it has no more battery and you know like that how many kilometers the battery holds.