Hi @Snux,
Here is the code I tweaked from Zarch’s code posted earlier to get working with the data from the Fronius inverter and the pimoroni gfxhat, running on a raspberry pi.
Cheers
Simon
#!/usr/bin/env python
import time
import signal
import requests
import sys
from gfxhat import touch, lcd, backlight, fonts
from PIL import Image, ImageFont, ImageDraw
font = ImageFont.truetype('/home/pi/fonts/BebasNeue-Regular.ttf',22)
def set_backlight(r, g, b):
backlight.set_all(r, g, b)
backlight.show()
def cleanup():
backlight.set_all(0, 0, 0)
backlight.show()
lcd.clear()
lcd.show()
def handler(ch, event):
if event == 'press':
led_states[ch] = not led_states[ch]
touch.set_led(ch, led_states[ch])
if led_states[ch]:
backlight.set_pixel(ch, 0, 255, 255)
else:
backlight.set_pixel(ch, 0, 255, 0)
backlight.show()
def signal_handler(signal, frame):
#print("\nprogram exiting gracefully")
cleanup()
sys.exit(0)
signal.signal(signal.SIGINT, signal_handler)
signal.signal(signal.SIGTERM, signal_handler)
led_states = [False for _ in range(6)]
width, height = lcd.dimensions()
cleanup()
set_backlight(0,0,128)
w, h = font.getsize('>')
# Set X and Y to top left of lcd
x = 0
y = 0
image = Image.new('P', (width, height))
draw = ImageDraw.Draw(image)
for x in range(6):
#backlight.set_pixel(x, 0, 128, 0)
touch.on(x, handler)
#backlight.show()
for x in range(128):
for y in range(64):
pixel = image.getpixel((x, y))
lcd.set_pixel(x, y, pixel)
text = "Initializing"
draw.text((x, y), text, 1, font)
y = y + h
# This clears the display ready for next display, otherwise the countdown over-prints
for x in range(128):
for y in range(64):
pixel = image.getpixel((x, y))
lcd.set_pixel(x, y, pixel)
lcd.show()
usage_result = 0
solar_result = 0
backlight.show()
using = 0
delay = 5 # delay between updates in seconds
gap = (width / delay)
while True:
for countdown in range (delay,0,-1):
if countdown == 1:
milli_sec_end = int(round(time.time() * 1000))
milli_sec_start = milli_sec_end - 300000
solar_result = 0
usage_result = 0
grid_result = 0
try:
response = requests.get("http://192.168.0.8/solar_api/v1/GetPowerFlowRealtimeData.fcgi")
json_data = response.json()
except requests.exceptions.RequestException as e:
print (e)
if response.status_code == 200:
usage_result = int(round(abs(json_data['Body']['Data']['Site']['P_Load'])))
solar_result = (json_data['Body']['Data']['Site']['P_PV'])
if solar_result == None:
solar_result = 0
else:
solar_result = int(round(abs(solar_result)))
grid_result = int(round(json_data['Body']['Data']['Site']['P_Grid']))
#grid_result = 0
#print ("solar_result", solar_result)
#print ("usage_result", usage_result)
#print ("grid_result", grid_result)
#print ()
else:
usage_result = 0
solar_result = 0
grid_result = 0
if -1500 >= grid_result >= -6000:
set_backlight(0,128,0)
elif -1 >= grid_result >= -1500:
set_backlight(192,128,0)
else:
set_backlight(128,0,0)
# Set X and Y to top left of lcd
x = 0
y = 0
image = Image.new('P', (width, height))
draw = ImageDraw.Draw(image)
text = "Gen: " + str(solar_result) + "w"
draw.text((x, y), text, 1, font)
y = y + h
text = "Use: "+str(usage_result)+"w"
draw.text((x, y), text, 1, font)
y = y + h
if grid_result > 0:
text = "From Grid: "+str(grid_result)+"w"
draw.text((x, y), text, 1, font)
y = y + h
else:
text = "To Grid: "+str(abs(grid_result))+"w"
draw.text((x, y), text, 1, font)
y = y + h
# This clears the display ready for next display, otherwise the countdown over-prints
for x in range(128):
for y in range(64):
pixel = image.getpixel((x, y))
lcd.set_pixel(x, y, pixel)
lcd.show()
time.sleep(1)
