arofarn/Cameteo
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Nouveau driver ePaper Display de Waveshare supportant les Image de la librairie PIL

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Beaucoup plus facile à utiliser pour de l'affichage riche
This commit is contained in:
Pierrick C 2017-09-20 18:06:00 +02:00
parent e95f6eb57a
commit 61c4296af6
6 changed files with 121 additions and 50 deletions
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1
.gitignore vendored
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@ -5,3 +5,4 @@ raspberry/pictures/*
boitier/old*
.directory
*__pycache__*
test*

32
arduino/mqtt_esp8266_BME280/mqtt_esp8266_BME280.ino
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@ -20,7 +20,7 @@
#define MQTT_USERNAME "arofarn"
#define MQTT_KEY "WaKaW9XMGUZ3rRJD"
#define MQTT_ID "huzzah0"
#define MQTT_PUB_INTERVAL 10000
#define MQTT_PUB_INTERVAL 15000 // milliseconds
/************************* Time and NTP Setup *********************************/
@ -33,7 +33,7 @@
#define MODE_STATION true
#define DEFAULT_ALTITUDE 140.0
#define DEFAULT_MSLP 1013.25 //Atmospheric Pressure at Sea-Level
#define DEFAULT_MSLP 1013.25 //Mean Atmospheric Pressure at Mean Sea-Level
// Create an ESP8266 WiFiClient class to connect to the MQTT server.
WiFiClient wifi_client;
@ -152,21 +152,11 @@ void loop() {
date_str = NTP.getTimeDateString();
date_str.toCharArray(date_val,20);
// Now we can publish stuff!
Serial.print(F("Sending date and time "));
Serial.print(date_val);
Serial.print("...");
if (! mqtt_client.publish("huzzah0/NTP/date", date_val, true, 2)) {
Serial.println(F("Failed"));
} else {
Serial.println(F("OK!"));
}
// Now we can publish stuff!
Serial.print(F("Sending pressure value "));
Serial.print(pressure_val);
Serial.print("...");
val2json(pressure_val, date_str, "hPa", "PA").toCharArray(tosend, 120);
val2json(pressure_val, date_str, "hPa", "AP").toCharArray(tosend, 120);
if (! mqtt_client.publish("huzzah0/AdaBME280_1/pressure", tosend, true, 2) ) {
Serial.println(F("Failed"));
} else {
@ -182,7 +172,7 @@ void loop() {
Serial.print(F("Sending sea-level pressure value "));
Serial.print(atm_press_sea_level);
Serial.print("...");
val2json(atm_press_sea_level, date_str, "hPa", "SLPA").toCharArray(tosend, 120);
val2json(atm_press_sea_level, date_str, "hPa", "MSLP").toCharArray(tosend, 120);
if (! mqtt_client.publish("huzzah0/AdaBME280_1/sea_level_pressure", tosend, true, 2) ) {
Serial.println(F("Failed"));
} else {
@ -202,7 +192,7 @@ void loop() {
Serial.print(F("Sending humity value "));
Serial.print(humidity_val);
Serial.print("...");
val2json(humidity_val, date_str, "%", "HR").toCharArray(tosend, 120);
val2json(humidity_val, date_str, "%", "RH").toCharArray(tosend, 120);
if (! mqtt_client.publish("huzzah0/AdaBME280_1/humidity", tosend, true, 2)) {
Serial.println(F("Failed"));
} else {
@ -213,12 +203,22 @@ void loop() {
Serial.print(F("Sending temperature value "));
Serial.print(temperature_val);
Serial.print("...");
val2json(temperature_val, date_str, "degC", "TA").toCharArray(tosend, 120);
val2json(temperature_val, date_str, "degC", "AT").toCharArray(tosend, 120);
if (! mqtt_client.publish("huzzah0/AdaBME280_1/temperature", tosend, true, 2)) {
Serial.println(F("Failed"));
} else {
Serial.println(F("OK!"));
}
// __LAST__ thing to send : Date and Time
Serial.print(F("Sending date and time "));
Serial.print(date_val);
Serial.print("...");
if (! mqtt_client.publish("huzzah0/NTP/date", date_val, true, 2)) {
Serial.println(F("Failed"));
} else {
Serial.println(F("OK!"));
}
}
delay(10);

6
cameteo-interface/cameteo.conf
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@ -32,5 +32,11 @@ photo_dir=/home/pi/Cameteo/photos/
photo_name=test_%%Y%%m%%d_%%H%%M%%S
photo_format=jpeg
[EPD]
epd_font_file=/usr/share/fonts/truetype/freefont/FreeMono.ttf
epd_bold_font_file=/usr/share/fonts/truetype/freefont/FreeMonoBold.ttf
epd_italic_font_file=/usr/share/fonts/truetype/freefont/FreeMonoOblique.ttf
epd_rotate = 1
[MISC]
TimeZone=2

8
cameteo-interface/cameteo_conf.py
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@ -71,4 +71,10 @@ photo_extensions = {'jpeg': 'jpg',
'bmp': 'bmp',
'yuv': 'yuv',
'rgb': 'rgb',
'rgba': 'rgba'}
'rgba': 'rgba'}
#epaper display
epd_font_file = parser['EPD'].get('epd_font_file' , fallback='/usr/share/fonts/truetype/freefont/FreeMono.ttf')
epd_bold_font_file = parser['EPD'].get('epd_bold_font_file' , fallback='/usr/share/fonts/truetype/freefont/FreeMonoBold.ttf')
epd_italic_font_file = parser['EPD'].get('epd_italic_font_file' , fallback='/usr/share/fonts/truetype/freefont/FreeMonoOblique.ttf')
epd_rotate = min(int(parser['EPD'].get('epd_rotate', fallback=0)), 1)

6
cameteo-interface/epd2in13.py
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@ -29,7 +29,7 @@ from PIL import Image
import RPi.GPIO as GPIO
# Display resolution
EPD_WIDTH = 122
EPD_WIDTH = 128
EPD_HEIGHT = 250
# EPD2IN13 commands
@ -127,7 +127,7 @@ class EPD:
def wait_until_idle(self):
while(self.digital_read(self.busy_pin) == 1): # 0: idle, 1: busy
self.delay_ms(100)
self.delay_ms(20)
##
# @brief: module reset.
# often used to awaken the module in deep sleep,
@ -214,7 +214,7 @@ class EPD:
self.set_memory_pointer(0, 0)
self.send_command(WRITE_RAM)
# send the color data
for i in range(0, self.width / 8 * self.height):
for i in range(0, int(self.width / 8 * self.height)):
self.send_data(color)
##

118
cameteo-interface/mqtt2epaper.py
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@ -11,13 +11,24 @@ Display data from MQTT broker on ePaper screen
from cameteo_conf import *
import paho.mqtt.client as mqtt
from spidev import SpiDev
import EPD_driver
import time
import json
import netifaces
import netifaces, socket
import epd2in13
from PIL import Image
from PIL import ImageDraw
from PIL import ImageFont
mqtt_client_id = "epaper_display"
def update_epd():
#rotation de l'image de 90° + 180° si le paramètre epd_rotate est différent de 0
# la translation permet de rattraper un petit décalage en cas de rotation de 90+180°
screen = image.rotate(90 + (epd_rotate * 180), expand=True, translate=(-6*epd_rotate, 0))
#Mis en memoire de l'image à afficher et affichage de l'image
epd.set_frame_memory(screen, 0, 0)
epd.display_frame()
#############
# CALLBACKS #
#############
@ -51,61 +62,108 @@ def on_message(client, userdata, msg):
val['value'] = float('nan')
#Gestion du symbole des degrés parfois difficile pour certaines sources
#val['unit'] = val['unit'].replace('deg', '°')
val['unit'] = val['unit'].replace('deg', '°')
#Affichage des données
coord_type = { 'TA' : 33,
'HR' : 49,
'SLPA' : 65
}
coord_type = { 'AT' : (2, 50),
'RH' : (127, 50),
'MSLP' : (2, 66),
'ALTI' : (127, 66),
}
if val['type'] in coord_type:
disp.Dis_String(125, coord_type[val['type']], "{} {} ".format(val['value'], val['unit']), 16)
#erase former text
draw.rectangle(coord_type[val['type']] + (coord_type[val['type']][0] + 122, coord_type[val['type']][1] + 14), fill=255)
#draw new values
draw.text(coord_type[val['type']], "{:8.1f} {} ".format(val['value'], val['unit']), font=font14, fill=0)
# #Update the display
# screen = image.rotate(90, expand=True)
# epd.set_frame_memory(screen, 0, 0)
# epd.display_frame()
#Callback managing date and time from MQTT broker
def on_message_date(client, userdata, msg):
payload = msg.payload.decode()
print("Date : " + payload)
try:
d = datetime.strptime(payload, "%H:%M:%S %d/%m/%Y")
disp.Dis_String(0, 17, datetime.strftime(d + TimeZone.utcoffset(None), "%d/%m/%Y %H:%M:%S"), 16)
#Mise en forme de la date et heure reçu pour fuseau horaire configuré
dt_texte = datetime.strftime(datetime.strptime(payload, "%H:%M:%S %d/%m/%Y") + TimeZone.utcoffset(None), "%d/%m/%Y %H:%M:%S")
except:
disp.Dis_String(0, 17, payload, 16)
dt_texte = payload
#Affichage du résultat
draw.rectangle((0, 34, epd2in13.EPD_HEIGHT, 48), fill=255)
draw.text((0, 34), dt_texte, font=font14, fill=0)
update_epd()
#Update display with info from camera (camera shooting new photo or name of the
# last photo)
def on_message_camera(client, userdata, msg):
pl = msg.payload.decode()
print("{} : {} ({})".format(msg.topic, pl, type(pl)))
# Photo en cours
if pl == "1" and msg.topic == camera_mqtt_topic + "/shooting" :
disp.Dis_String(0, 105, "Shooting photo... ", 16)
draw.rectangle((0, 105, epd2in13.EPD_HEIGHT, 120), fill=255)
draw.text((0, 105), "Shooting photo... ", font=font14, fill=0)
update_epd()
#Dernière photo prise
if msg.topic == camera_mqtt_topic + "/last_photo":
disp.Dis_String(0, 105, "Last: " + pl, 16)
draw.rectangle((0, 105, epd2in13.EPD_HEIGHT, 120), fill=255)
draw.text((0, 105), "Last: " + pl, font=font14, fill=0)
update_epd()
#Callback de déconnexion au broker MQTT
def on_disconnect(client, userdata, msg):
if msg != 0:
print("Déconnexion imprévu : %s" % msg)
exit()
########
# Main #
########
#init and Clear full screen
bus = 0
device = 0
disp = EPD_driver.EPD_driver(spi=SpiDev(bus, device))
#Screen init.
epd = epd2in13.EPD()
epd.init(epd.lut_full_update)
print("Start display...")
disp.Dis_Clear_full()
disp.Dis_Clear_part()
print("OK")
#List of TrueType fonts
font12 = ImageFont.truetype(epd_font_file, 12)
font14 = ImageFont.truetype(epd_font_file, 14)
font16 = ImageFont.truetype(epd_font_file, 16)
font12_bold = ImageFont.truetype(epd_bold_font_file, 12)
font14_bold = ImageFont.truetype(epd_bold_font_file, 14)
font16_bold = ImageFont.truetype(epd_bold_font_file, 16)
#font12_obl = ImageFont.truetype(epd_italic_font_file, 12)
#font14_obl = ImageFont.truetype(epd_italic_font_file, 14)
#font16_obl = ImageFont.truetype(epd_italic_font_file, 16)
#disp.Dis_String(0, 0, "{} | {}".format(socket.gethostname(), netifaces.ifaddresses('wlan0')[2][0]['addr']), 12)
disp.Dis_String(0, 0, "IPv4 : {}".format(netifaces.ifaddresses('wlan0')[2][0]['addr']), 16)
disp.Dis_String(0, 33, "Temperature : ", 16)
disp.Dis_String(0, 49, "Humidity : ", 16)
disp.Dis_String(0, 65, "Sea Pression : ", 16)
#New image buffer
# Memo : 0=black, 255= white/blank
image = Image.new('1', (epd2in13.EPD_HEIGHT, epd2in13.EPD_WIDTH), 255)
draw = ImageDraw.Draw(image)
#Draw basic text and frame :
draw.rectangle((0, 0, epd2in13.EPD_HEIGHT, 18), fill=0)
draw.text((60, 2), "Projet Camétéo", font=font16_bold, fill=255)
draw.text((0, 20), "{} : IP= {}".format(socket.gethostname(), netifaces.ifaddresses('wlan0')[2][0]['addr']), font = font12, fill=0 )
draw.line((0,49,epd2in13.EPD_HEIGHT, 49), fill=0)
draw.line((0,65,epd2in13.EPD_HEIGHT, 65), fill=0)
draw.line((0,81,epd2in13.EPD_HEIGHT, 81), fill=0)
draw.line((125, 49, 125, 81), fill=0)
#Display on ePaper screen
epd.clear_frame_memory(0xFF)
update_epd()
#
#screen = image.rotate(90, expand=True)
#epd.set_frame_memory(screen, 0, 0)
#epd.display_frame()
#Toggle to partial refresh
epd.init(epd.lut_partial_update)
#Connect to MQTT broker and loop...
mqtt_client = mqtt.Client(mqtt_client_id, clean_session=True)