====== Random Stuff to play around hasp-lvgl ====== 

Github [[https://github.com/fvanroie/hasp-lvgl/ | hasp-lvgl]] 

Since I intend to have most of this running on embedded boards with OpenWRT for the 'smartest ones', most will be written down in micropython to keep things lightweight as possible

Let's be honest, uploading the jsonl file each time is a pain:

Try this:

<code bash>
curl 'http://10.33.64.20/edit' -F "filename=@pages.jsonl" && sleep 1 && curl -s -o /dev/null 'http://10.33.64.20/reboot'
</code>

Or, to minimize wear on the flash until you're happy, run this:

<file python up_showjssonl.py>
import sys,time

from umqttsimple import MQTTClient
import ubinascii
import micropython

# Put your own settings here obviously ;)
mqtt_server = '10.33.64.2'
client_id = 'platejsonloader'
topic_pub_base = b'hasp/plate_joul'
mqttuser = 'MQTTUSER'
mqttpass = 'MQTTPASS'
mqttkeepalive = 0
state_stable = False

counter = 0

def connect_and_subscribe():
  global client_id, mqtt_server, mqttuser, mqttpass, mqttkeepalive, state_stable
  client = MQTTClient(client_id, mqtt_server, 1883 , mqttuser, mqttpass, mqttkeepalive)
  client.connect()
  print('Connected to %s MQTT broker' % (mqtt_server))
  state_stable = False
  return client

def restart_and_reconnect():
  print('Failed to connect to MQTT broker. Reconnecting...')
  time.sleep_ms(50)
  #sys.exit(0)

try:
  client = connect_and_subscribe()
except OSError as e:
  restart_and_reconnect()

try:
  # Using readlines()
  for i in range (0, 13):
    print("Clearing page %s"%i )
    client.publish(b'%s/command/clearpage' % topic_pub_base, b'%s' % i )
    time.sleep_ms(5)
  file1 = open('pages.jsonl', 'r')
  jsonlines  = file1.readlines()
  count = 0
  for jsonl in jsonlines:
    print("Line{}: {}".format(count, jsonl.strip()))
    if len(jsonl.strip()) >0 :
      count+=1
      client.publish(b'%s/command/jsonl' % topic_pub_base, b'%s' % jsonl.strip() )
      time.sleep_ms(5)

  # I use this to trigger actions from other scripts that watch this (reinjecting values to be precise)
  client.publish(b'%s/LWT' % topic_pub_base, b'online')
except OSError as e:
  restart_and_reconnect()

</file>