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January 7, 2021 15:20
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Soil moisture sensor
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| # BOOT.PY | |
| import gc | |
| import network | |
| import esp | |
| esp.osdebug(None) | |
| gc.collect() | |
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| essid = "yourWiFiSSID" | |
| password = "yourWiFiPassword" | |
| TIMEZONE = 8 | |
| server = "192.168.0.10" | |
| port = 19780 | |
| mqttuser = "mqttlogin" | |
| mqttpwd = "MQttPassWord123" | |
| TOPIC_PREFIX = 'plant0/' | |
| UPDATE_INTERVAL = 5 # Minutes |
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| import machine | |
| import time | |
| import ntptime | |
| import ubinascii | |
| from umqtt.simple import MQTTClient | |
| from config import * | |
| def initmqtt(): | |
| client_id = ubinascii.hexlify(machine.unique_id()) | |
| client = MQTTClient(client_id, MQTTSERVER, MQTTPORT, MQTTUSER, MQTTPWD) | |
| client.connect() | |
| print("MQTT Connected") | |
| return client | |
| def connect(): | |
| sta_if = network.WLAN(network.STA_IF) | |
| if not sta_if.isconnected(): | |
| print("Connecting to {}...".format(ESSID)) | |
| sta_if.active(True) | |
| sta_if.connect(ESSID, PWD) | |
| while not sta_if.isconnected(): | |
| pass | |
| print("Network config:", sta_if.ifconfig()) | |
| connect() | |
| rtc = machine.RTC() | |
| try: | |
| ntptime.settime() | |
| sec = time.time() + TIMEZONE * 3600 | |
| localtime = time.localtime(sec) | |
| except: | |
| print('Error setting time') | |
| time.sleep(10) | |
| machine.reset() | |
| try: | |
| client = initmqtt() | |
| except: | |
| print('Error initializing MQTT') | |
| time.sleep(10) | |
| machine.reset() | |
| adc = machine.ADC(0) | |
| moisture = adc.read() | |
| print(moisture) | |
| time.sleep_ms(1) | |
| try: | |
| client.publish(TOPIC_PREFIX + "moisture", str(moisture), retain=True) | |
| time.sleep(1) | |
| except: | |
| print('Error publishing to topic') | |
| time.sleep(10) | |
| reset() | |
| rtc.irq(trigger=rtc.ALARM0, wake=machine.DEEPSLEEP) | |
| rtc.alarm(rtc.ALARM0, time.ticks_ms() + UPDATE_INTERVAL*60*1000) | |
| print('Entering deepsleep') | |
| machine.deepsleep() |
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