# # Using and ESPO01 and multiple DS18B20 to read the temperatures # This sort of works # You need to disconnect from WiFI and connect to SSID # and use ipconfig # # https://docs.micropython.org/en/latest/wipy/tutorial/wlan.html # # curl --http1.0 192.168.1.206 # # #import machine import machine, onewire, ds18x20, time # Router specific:- SSID = 'PLUSNET-Sxxx' KEY = '1234567890' # # # ds_pin = machine.Pin(2) ds_sensor = ds18x20.DS18X20(onewire.OneWire(ds_pin)) roms = ds_sensor.scan() print('Found DS devices: ', len( roms ), ' ', roms) #while True: #while False: if len( roms ) > 0 : ds_sensor.convert_temp() time.sleep_ms(750) print( "DB18B20: ") for rom in roms: print( rom ) print(ds_sensor.read_temp(rom)) st = '' st2 = '' for rom in roms: #st2 += str( rom ) + ' ' st2 += " [, "+",".join( hex(b) for b in rom )+", ] , " st = st + str( ds_sensor.read_temp(rom) ) + ' , ' st += st2 print( st ) import network sta_if = network.WLAN(network.WLAN.IF_STA); sta_if.active(True) #print( sta_if.scan() ) # Scan for available access points #sta_if.connect("", "") # Connect to an AP sta_if.connect( SSID , KEY ) # Connect to an AP print( sta_if.isconnected() ) # Check for successful connection # Change name/password of ESP8266's AP: ap_if = network.WLAN(network.WLAN.IF_AP) #ap_if.config(ssid="", security=network.AUTH_WPA_WPA2_PSK, key="") ap_if.config(ssid=SSID, security=network.AUTH_WPA_WPA2_PSK, key=KEY) print( bdev ) pins = [machine.Pin(i, machine.Pin.IN) for i in (0, 2, 4, 5, 12, 13, 14, 15)] # %s

Pin	Value

# %s html = """ ESP8266 DS18B20

ESP8266 DS18B20

%s , %s

""" import socket addr = socket.getaddrinfo('0.0.0.0', 80)[0][-1] s = socket.socket() s.bind(addr) s.listen(1) print('listening on', addr) while True: cl, addr = s.accept() print('client connected from', addr) # this needs to be more robust t = 0 t1 = 0 t2 = 0 st = 'No DS18B20 found ' st2 = '' if len( roms ) > 0 : ds_sensor.convert_temp() time.sleep_ms(750) # build up CSV list st = 'DS18B20 , ' for rom in roms: # st2 += str( rom ) + ' ' st2 += " [, "+",".join( hex(b) for b in rom )+", ] , " st = st + str( ds_sensor.read_temp(rom) ) + ' , ' st += st2 print( st ) t1 = ds_sensor.read_temp(rom) t2 = ds_sensor.read_temp(rom) cl_file = cl.makefile('rwb', 0) # read values from POST while True: line = cl_file.readline() if not line or line == b'\r\n': break # rows = ['%s%d' % (str(p), p.value()) for p in pins] # response = html % '\n'.join(rows) # # temps = ['%s ' % (str(p), p.value()) for p in roms] response = html % ( str( len( roms ) ) , st ) cl.send('HTTP/1.0 200 OK\r\nContent-type: text/html\r\n\r\n') cl.send(response) cl.close()