In this post, we show how to turn on the serial debug port function when using ARPI600: Raspberry Pi B+ to Arduino Adapter HAT for Raspberry Pi B+.

1. Before connecting any hardware, we need to install USB driver CP2102 on host PC.

2. Install the Arduino converter HAT on Raspberry Pi B+, and then power on Raspberry Pi B+ first before plug USB port of the Arduino converter HAT to that of PC. Note: this is very important as the USB port of PC cannot deliver enough current to the assembly of Arduino converter HAT and Raspberry Pi B+.

3. The serial pot headers is default to be serial debug port under the Raspbian. Users need to set the jumpers on Arduino converter HAT to enable the serial debug port to connect to the USB to UART by doing the following:

• CP_RX -> P_TX
• CP_TX -> P_RX

4. Launch soft/putty.exe under host PC. The putty can be downloaded from here.  Configure putty as following:

• Serial line: please it according to the real situation
• Speed: please set it to be 115200.
• Connection type: Serial.

Then press OPEN.

5. After OPEN the port, if there are nothing displayed, please press ENTER.

Type the following information:

username: pi

password: raspberry

Now we can enter into the serial console.