Pulse-width modulation, for example, is important for driving ... stick using the 5 volts out available on the Arduino Uno. I2C also requires pull-up resistors on the data (SDA) and clock (SCL ...

So the idea here is pretty simple. A little metal cart equipped with two beefy motors, an Arduino Mega, a pair of motor controllers, and a HC-08 Bluetooth module so you can control it from your phone.

For example, if you didn’t think about ... [Electronoob] has a good tutorial about how to pull this off with an Arduino. You can also see a video, below. The demo uses a 3D printer hot end ...

As you can see in the schematic all three TC74 sensors have their SDA and SCL pins connected in series to pin A4 and A5 on the Arduino board. The two 4.7K pull-up resistors must be ... package ...