188 lines
5.7 KiB
Python
188 lines
5.7 KiB
Python
import gc
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import network
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import picoweb
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import json
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from time import sleep_ms
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from timezone import TIMEZONES
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app = picoweb.WebApp(__name__)
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ap_if = network.WLAN(network.AP_IF)
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sta_if = network.WLAN(network.STA_IF)
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sta_if.active(True)
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nets = sta_if.scan()
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config = dict()
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try:
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with open("config.json") as fh:
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config = json.loads(fh.read())
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sta_if.connect(config.get("ssid"), config.get("password"))
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except OSError:
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pass
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print("Scanning for wireless networks...")
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@app.route("/connect")
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def index(req, resp):
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if req.method == "POST":
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yield from req.read_form_data()
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else:
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req.parse_qs()
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yield from picoweb.start_response(resp)
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with open("config.json", "w") as fh:
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fh.write(json.dumps(req.form))
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yield from resp.awrite("Setting saved please power cycle device")
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@app.route("/")
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def index(req, resp):
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print("Serving index")
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yield from picoweb.start_response(resp)
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yield from resp.awrite("<html>")
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yield from resp.awrite("<head>")
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yield from resp.awrite("<meta name='viewport' content='width=device-width, initial-scale=1'>")
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yield from resp.awrite("</head>")
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yield from resp.awrite("<body>")
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yield from resp.awrite("<h>Welcome to NixiESP12 configuration wizard</h>")
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yield from resp.awrite("<p>Detected wireless networks:</p>")
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yield from resp.awrite("<form action='/connect' method='post'>")
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yield from resp.awrite("<p>Select wireless network:</p>")
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yield from resp.awrite("<select name='ssid'>")
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for ssid, _, _, snr, crypto, _ in nets:
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ssid = ssid.decode("utf-8")
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yield from resp.awrite("<option>" + ssid + "</option>")
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yield from resp.awrite("</select>")
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yield from resp.awrite("<p>Wireless password is applicable:</p>")
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yield from resp.awrite("<input type='password' name='password'/>")
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yield from resp.awrite("<p>Timezone:</p>")
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yield from resp.awrite("<select name='timezone'>")
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for index, (dst, offset, title) in enumerate(TIMEZONES):
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yield from resp.awrite("<option value='%d'>%s</option>" % (index, title))
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yield from resp.awrite("</select>")
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yield from resp.awrite("<p>NTP resynchronization interval:</p>")
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yield from resp.awrite("<select name='interval'>")
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for j in range(0, 73):
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yield from resp.awrite("<option value='%d'>%d hours</option>" % (j*3600, j))
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yield from resp.awrite("</select>")
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yield from resp.awrite("<p> </p>")
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yield from resp.awrite("<input type='submit'/>")
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yield from resp.awrite("</form>")
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yield from resp.awrite("</body>")
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yield from resp.awrite("<html>")
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timed_out = True
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if config:
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print("Connecting to", config.get("ssid"))
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for j in range(0,30):
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if sta_if.isconnected():
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ap_if.active(False)
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timed_out = False
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break
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sleep_ms(200)
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if timed_out:
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ap_if.active(True)
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print("Starting setup wizard on", ap_if.ifconfig())
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app.run()
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TIMEZONE = TIMEZONES[int(config.get("timezone", 30))][1]
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print("Using timezone", TIMEZONES[int(config.get("timezone", 30))])
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RESYNC = int(config.get("interval")) # Resync once in 8 hours
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print("NTP resynchronization interval", RESYNC, "seconds")
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DEBUG = False
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print("Press Ctrl-C now to abort main.py execution and retain keyboard input")
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sleep_ms(2000)
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import time
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import ntptime
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from machine import Pin, Timer
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# Note that keyboard input is lost beyond this point!
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clock = Pin(3, mode=Pin.OUT)
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latch = Pin(0, mode=Pin.OUT)
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data = Pin(2, mode=Pin.OUT)
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blink = False
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lookup = 11, 9, 12, 8, 0, 4, 1, 3, 2, 10
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countdown = 0
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def bitbang_bit(value):
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if value & 1:
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data.on()
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else:
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data.off()
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clock.on()
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clock.off()
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def bitbang_digit(digit):
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bitbang_bit(blink)
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for i in range(0,4):
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bitbang_bit(lookup[digit] << i >> 3)
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bitbang_bit(blink)
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bitbang_bit(blink)
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bitbang_bit(blink)
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def dst_offset(month, day, dow):
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if month < 3 or month > 10:
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return 0
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if month > 3 and month < 10:
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return 1
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previous_sunday = day - dow
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if month == 3:
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return int(previous_sunday >= 25)
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return int(previous_sunday < 25)
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def dump_time(year, month, day, hour, minute, second, dow):
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offset = dst_offset(month, day, dow)
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if DEBUG:
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print("Time is %02d:%02d:%02d, dst offset %d" % (hour, minute, second, offset))
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hour = (hour + TIMEZONE + offset) % 24
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bitbang_digit(hour // 10)
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bitbang_digit(hour % 10)
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bitbang_digit(minute // 10)
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bitbang_digit(minute % 10)
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bitbang_digit(second // 10)
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bitbang_digit(second % 10)
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# RTC accuracy is still garbage, time.ticks_ms() which is bound to CPU ticks seems to be more accurate
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# https://forum.micropython.org/viewtopic.php?t=3251#p19092
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# Boot up test sequence
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for j in range(0, 10):
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for i in range(0, 6):
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bitbang_digit(j)
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latch.on()
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latch.off()
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sleep_ms(500)
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while True:
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if countdown <= 0:
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try:
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ticks_then, time_then = time.ticks_ms(), ntptime.time()
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except OSError:
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sleep_ms(500)
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print("Resync failed")
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continue
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else:
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countdown = RESYNC
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print("Resync done")
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else:
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year, month, day, hour, minute, second, dow, _ = time.localtime(time_then + (time.ticks_ms() - ticks_then) // 1000)
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sleep_ms(500-(time.ticks_ms() - ticks_then) % 1000)
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blink = True
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dump_time(year, month, day, hour, minute, second, dow)
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latch.on()
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latch.off()
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countdown -= 1
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year, month, day, hour, minute, second, dow, _ = time.localtime(time_then + (time.ticks_ms() - ticks_then) // 1000)
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sleep_ms(1001-(time.ticks_ms() - ticks_then) % 1000)
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blink = False
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dump_time(year, month, day, hour, minute, second, dow)
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latch.on()
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latch.off()
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main()
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