Overview
In this tutorial, I will show steps for setting up the Raspberry Pi 3B with a 7-inch touchscreen. Later, I will add a dual camera support. As usual, I am doing most of the work on the MacBook Pro, but the steps will easily translate to another operating system (Windows, or Linux).
I have ordered the touchscreen display a while ago and it's been sitting on my bench, but right now I am working on the image recognition in my car (a separate tutorial) and I would like to see what I am capturing, also to be able to start and to stop the process from a touchscreen.
I have ordered the case for the setup, but I have to see how it would work for me as I need a stereo (or rather dual) cameras that will require an additional pair of Raspberry Pi boards. I do not believe that Pi Zero will do, as I will do a heavy pre-processing of the images before sending them to the Machine Learning model.
There is also a 10.1-inch (1280x800) capacitive touchscreen available, but this might be for the next stage of the project.
The products mentioned are shown below:
| Raspberry Pi 3B | 7-inch touchscreen | 7-inch case | 10.1 touchscreen | Infrared camera |
Download SD Card Formatter for Mac
https://www.sdcard.org/downloads/formatter_4/eula_mac/index.html
Format the SD card
Download Raspbian with Desktop
https://www.raspberrypi.org/downloads/raspbian/
UZip the Rasbian OS and you get .img
2018-10-09-raspbian-stretch.zip
2018-10-09-raspbian-stretch.imgCheck where is your SD Card mounted
$ diskutil list
/dev/disk2 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: FDisk_partition_scheme *15.9 GB disk2
1: Windows_FAT_32 PI3_RASBIAN 15.9 GB disk2s1
Unmount your SD Card
$ sudo diskutil unmountDisk /dev/disk2
Password:
Unmount of all volumes on disk2 was successful
Put the image on the SD Card
$ sudo dd bs=1m if=/Users/uki/Downloads/2018-10-09-raspbian-stretch.img of=/dev/disk23944+0 records in3944+0 records out
4135583744 bytes transferred in 3019.441172 secs (1369652 bytes/sec)
Wait a long time with no feedback.
Eject the SD Card
$ sudo diskutil eject /dev/disk2Password:
Disk /dev/disk2 ejected
Insert the SD Card into the Raspberry Pi
Make sure you insert the SD Card correctly, the slot is under the Display ribbon.
Connect pins
- --- RED 5V
- --- BLACK Ground
- --- GREEN (serial data) - SDA1 I/O I2C bus
- --- YELLOW(system clock) - SCL1 I2C bus
The pin layout for Raspberry 2 and 3 is the same.
References: