UIFlow Guide
UiFlow1 Quick Start
2. Firmware & Program 1.0
UiFlow1 Blockly
Event
UI
Unit
Module
Hat
Atomic Base
UiFlow1 Project
UiFlow2 Quick Start
2. Firmware & Program 2.0
Desktop IDE
Unit MQTT
Example
from m5stack import *
from m5stack_ui import *
from uiflow import *
import unit
screen = M5Screen()
screen.clean_screen()
screen.set_screen_bg_color(0xFFFFFF)
mqtt_0 = unit.get(unit.MQTT_ETH, 1, unit.PORTC)
mqtt_0.MqttStop()
while not (mqtt_0.isConnectLAN()):
print('waiting LAN connection')
mqtt_0.configMQTT('mqtt.m5stack.com', 1883, 'unit_mqtt_id', '', '', 30,)
while not (mqtt_0.subscribe(1, 'mqtt_unit_down', unit_mqtt_cb, 0)):
print('waiting subcribe topic')
while not (mqtt_0.saveParam()):
print('waiting save configure')
mqtt_0.MqttStart()
while not (mqtt_0.isConnectMQTT()):
print('waiting MQTT connection')
print('MQTT connected!')
while True:
mqtt_0.publish('mqtt_unit_up', 'hello', 0)
print(mqtt_0.receive_mqtt_message(5))
wait_ms(2)API
mqtt_0.uart_port_id(1)- Set Host Sensor ID
mqtt_0.Mqtt_cb_Loop()- Callback Polling
mqtt_0.configMQTT('', 0, '', '', '', 0,)- Create MQTTUnit Object
- client_id: The unique client ID string broker used when connecting
- Server:The hostname or IP address of the remote proxy
- port: The network port of the server host to be connected to
- username: The username used for proxy authentication
- password: The password used for proxy authentication
- keepalive: The maximum allowed time period
print((str('LAN:') + str((mqtt_0.isConnectLAN()))))- Check LAN Connection Status
print((str('MQTT:') + str((mqtt_0.isConnectMQTT()))))- Check MQTT Connection Status
mqtt_0.publish('', '', 0)- Publish Message
print((str('parameter:') + str((mqtt_0.saveParam()))))- Save Configuration Parameters
mqtt_0.MqttStart()- Start MQTT Client
mqtt_0.MqttStop()- Stop MQTT Client
print((str('msg:') + str((mqtt_0.subscribe(1, '', unit_mqtt_cb, 0)))))- Retrieve Subscribed Messages
def unit_mqtt_cb(mq_topic, mq_payload):
global mqtt_topic, mqtt_msg
mqtt_topic = mq_topic
mqtt_msg = mq_payload
pass- Publish/Subscribe Message