Encryptid: Created page with "=Setup= ===SD Card=== Add the wpa_supplicant.conf file to the boot drive with:

 country=US ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev update_config=1  network={ ssid="WIFI_SSID" scan_ssid=1 psk="WIFI_PASSWORD" key_mgmt=WPA-PSK }

Additionally you need to uncomment the spi line in config.txt as well as add the ssh file. ==Libraries== BCM2835

 wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.70.tar.gz tar zxvf bcm2835-1.70.tar.gz  cd bcm2..."

2025-08-06T19:05:53Z

Created page with "=Setup= ===SD Card=== Add the wpa_supplicant.conf file to the boot drive with: <pre> country=US ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev update_config=1 network={ ssid="WIFI_SSID" scan_ssid=1 psk="WIFI_PASSWORD" key_mgmt=WPA-PSK }</pre> Additionally you need to uncomment the spi line in config.txt as well as add the ssh file. ==Libraries== BCM2835 <pre> wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.70.tar.gz tar zxvf bcm2835-1.70.tar.gz cd bcm2..."

New page

=Setup=
===SD Card===
Add the wpa_supplicant.conf file to the boot drive with:
<pre>
country=US
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1

network={
ssid="WIFI_SSID"
scan_ssid=1
psk="WIFI_PASSWORD"
key_mgmt=WPA-PSK
}</pre>
Additionally you need to uncomment the spi line in config.txt as well as add the ssh file.

==Libraries==
BCM2835
<pre>
wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.70.tar.gz
tar zxvf bcm2835-1.70.tar.gz
cd bcm2835-1.70/
sudo ./configure
sudo make
sudo make check
sudo make install</pre>
WiringPi is needed on Pi4
<pre>wget https://project-downloads.drogon.net/wiringpi-latest.deb
sudo dpkg -i wiringpi-latest.deb
gpio -v</pre>
Grab examples
<pre>sudo apt-get install p7zip-full python3-pip python3-pil python3-numpy
sudo pip3 install RPi.GPIO
sudo pip3 install spidev
sudo pip3 install picamera
sudo wget https://www.waveshare.net/w/upload/a/a8/LCD_Module_RPI_code.7z
7z x LCD_Module_RPI_code.7z -O./LCD_Module_code
</pre>

==Python==
Just some sample code snips for ref
====Camera====
<pre>
## PiCamera
from time import sleep
from picamera import PiCamera

camera = PiCamera()
camera.resolution = (240, 240)

camera.capture("camera.bmp")
camera.close()
</pre>

====2.5 Snippet====
<pre>
import os
import sys
import time
import logging
import spidev as SPI
from picamera import PiCamera
sys.path.append("..")
from lib import LCD_2inch4
from PIL import Image,ImageDraw,ImageFont

# Raspberry Pi pin configuration:
RST = 27
DC = 25
BL = 18
bus = 0
device = 0

camera = PiCamera()
camera.resolution = (240, 320)

camera.capture("camera.bmp")
camera.close()

disp = LCD_2inch4.LCD_2inch4()
disp.Init()
disp.clear()

image1 = Image.new("RGB", (disp.width, disp.height), "WHITE")
draw = ImageDraw.Draw(image1)

image = Image.open('camera.bmp')
disp.ShowImage(image)
time.sleep(3)
disp.module_exit()
exit()
</pre>

====1.54 Demo====
<pre>
## 1inch54
import os
import sys
import time
import logging
import spidev as SPI
sys.path.append("..")
from lib import LCD_1inch54
from PIL import Image,ImageDraw,ImageFont

# Raspberry Pi pin configuration:
RST = 27
DC = 25
BL = 18
bus = 0
device = 0
logging.basicConfig(level=logging.DEBUG)
try:
# display with hardware SPI:
''' Warning!!!Don't creation of multiple displayer objects!!! '''
#disp = LCD_1inch54.LCD_1inch54(spi=SPI.SpiDev(bus, device),spi_freq=10000000,rst=RST,dc=DC,bl=BL)
disp = LCD_1inch54.LCD_1inch54()
# Initialize library.
disp.Init()
# Clear display.
disp.clear()

# Create blank image for drawing.
image1 = Image.new("RGB", (disp.width, disp.height), "WHITE")
draw = ImageDraw.Draw(image1)

logging.info("draw point")

draw.rectangle((5,10,6,11), fill = "BLACK")
draw.rectangle((5,25,7,27), fill = "BLACK")
draw.rectangle((5,40,8,43), fill = "BLACK")
draw.rectangle((5,55,9,59), fill = "BLACK")

logging.info("draw line")
draw.line([(20, 10),(70, 60)], fill = "RED",width = 1)
draw.line([(70, 10),(20, 60)], fill = "RED",width = 1)
draw.line([(170,15),(170,55)], fill = "RED",width = 1)
draw.line([(150,35),(190,35)], fill = "RED",width = 1)

logging.info("draw rectangle")

draw.rectangle([(20,10),(70,60)],fill = "WHITE",outline="BLUE")
draw.rectangle([(85,10),(130,60)],fill = "BLUE")

logging.info("draw circle")
draw.arc((150,15,190,55),0, 360, fill =(0,255,0))
draw.ellipse((150,65,190,105), fill = (0,255,0))

logging.info("draw text")
Font1 = ImageFont.truetype("../Font/Font01.ttf",25)
Font2 = ImageFont.truetype("../Font/Font01.ttf",35)
Font3 = ImageFont.truetype("../Font/Font02.ttf",32)

draw.rectangle([(0,65),(140,100)],fill = "WHITE")
draw.text((5, 68), 'Hello world', fill = "BLACK",font=Font1)
draw.rectangle([(0,115),(190,160)],fill = "RED")
draw.text((5, 118), 'WaveShare', fill = "WHITE",font=Font2)
draw.text((5, 160), '1234567890', fill = "GREEN",font=Font3)
text= u"微雪电子"
draw.text((5, 200),text, fill = "BLUE",font=Font3)
im_r=image1.rotate(270)
disp.ShowImage(im_r)
time.sleep(3)
logging.info("show image")
image = Image.open('../pic/LCD_1inch54.jpg')
im_r=image.rotate(270)
disp.ShowImage(im_r)
time.sleep(3)
disp.module_exit()
logging.info("quit:")
except IOError as e:
logging.info(e)
except KeyboardInterrupt:
disp.module_exit()
logging.info("quit:")
exit()
</pre>
====2.4 Attempt====
<pre>
## 2.4inch
import os
import sys
import time
import io
import picamera
import logging
import socketserver
from threading import Condition
import spidev as SPI
sys.path.append("..")
from lib import LCD_2inch4
from PIL import Image,ImageDraw,ImageFont

# Raspberry Pi pin configuration:
RST = 27
DC = 25
BL = 18
bus = 0
device = 0

disp = LCD_2inch4.LCD_2inch4()

class StreamingOutput(object):
def __init__(self):
self.frame = None
self.buffer = io.BytesIO()
self.condition = Condition()

def write(self, buf):
if buf.startswith(b'\xff\xd8'):
# New frame, copy the existing buffer's content and notify all
# clients it's available
self.buffer.truncate()
with self.condition:
self.frame = self.buffer.getvalue()
self.condition.notify_all()
self.buffer.seek(0)
return self.buffer.write(buf)

with picamera.PiCamera(resolution='240x320', framerate=30) as camera:
output = StreamingOutput()
camera.start_recording(output, format='mjpeg')
try:
disp.Init()
disp.clear()
time.sleep(30)
finally:
camera.stop_recording()
disp.module_exit()
exit()

</pre>

=Ref=
* [https://github.com/notro/fbtft/wiki FBTFT Wiki]
* [https://www.waveshare.com/wiki/2.4inch_LCD_Module Waveshare 2.4inch wiki]
* [https://www.waveshare.com/wiki/1.54inch_LCD_Module Waveshare 1.54inch wiki]
* [https://www.waveshare.com/wiki/1.28inch_LCD_Module Waveshare 1.28inch Wiki]
* [https://github.com/TobiasVanDyk/RaspberryPi-GPIO-Displays/tree/master/ili9341 ILI9341 Displaytree]
* [https://github.com/swkim01/waveshare-dtoverlays waveshare dtoverlays]
* [https://github.com/waveshare/LCD-show Waveshare LCD-Show]
* [https://picamera.readthedocs.io/en/release-1.13/recipes2.html#web-streaming picamera streaming]
* [https://dantheiotman.com/2017/08/28/realtime-video-using-a-raspberry-pi-zero-w-and-python-picamera/ some resource]
* [https://www.waveshare.com/w/upload/1/1b/Servo_Driver_HAT_User_Manual_EN.pdf WaveShare Servo Hat]

[[Category:RaspberryPi]]

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