It is important to provide sufficient cooling inside the remote controlled car for the Raspberry Pi itself. Together with the L298N H-Bridge it could become to hot for the electronic components. With the live video streaming and the WebIOPi running on the Raspberry Pi the CPU gets much to do and hot without sufficient cooling. In the past I mounted no heat sink on the top of the CPU and I got many crashes. After the crashes I decided to measure the temperature of the Raspberry Pi and noted that the temperature is too high. I had not overclocked the Raspberry Pi’s CPU yet. To solve the temperature problem I bought passive heat sinks to cool down the CPU.
If you want to measure the temperature of your Raspberry Pi CPU you can use the following command.
I bought a kit of two blue heat sinks via Amazon to cool down the Raspberry Pi microchips.
- CPU / GPU
All two heat sinks where delivered with a self-adhesive thermal pad. With the self-adhesive thermal pad it was easy to mount the heat sinks. If you want to overclock your Raspberry Pi you should use heat sinks and maybe a fan if you installed the Raspberry Pi in a closed chassis. The picture shows my heat sinks I bought.
The picture shows my robot car with a Raspberry Pi and the mounted heatsink kit. The chassis is open and by driving around the heatsinks have enough air flow to cool down. If the chassis is closed you may need a fan to blow out the hot air.