{"id":69,"date":"2017-04-07T23:59:01","date_gmt":"2017-04-07T21:59:01","guid":{"rendered":"https:\/\/arduinoforlammers.wordpress.com\/?p=69"},"modified":"2024-01-04T18:36:30","modified_gmt":"2024-01-04T17:36:30","slug":"mierzenie-swiatla-czyli-fotorezystor","status":"publish","type":"post","link":"http:\/\/adsl_zapas.dkonto.pl\/index.php\/mierzenie-swiatla-czyli-fotorezystor\/","title":{"rendered":"Mierzenie \u015bwiat\u0142a, czyli fotorezystor"},"content":{"rendered":"\n

Dzi\u015b bardzo prosty schemat z fotorezystorem wykorzystuj\u0105cy dzielnik napi\u0119cia.<\/p>\n\n\n

\n
\"\"\/<\/figure>\n<\/div>\n\n\n\n\n\n\n

Schemat:<\/strong><\/h3>\n\n\n
\n
\"\"\/<\/figure>\n<\/div>\n\n\n

I prosty kod:<\/strong><\/h3>\n\n\n\n

Typowy w\u0142\u0105cznik zmierzchowy.<\/p>\n\n\n

\nint pomiarswiatla;\n\nvoid setup() {\nSerial.begin(9600);\npinMode(8, OUTPUT); \/\/wskazanie wyj\u015bcia\ndigitalWrite(8, LOW);\/\/wy\u0142\u0105czenie diody\n}\nvoid loop() {\npomiarswiatla = analogRead(A0); \/\/ wskazanie pinu czytaj\u0105cego dane analogowe\nSerial.print(\"Pomiar \u015bwiat\u0142a = \");\nSerial.println(pomiarswiatla);\nif (pomiarswiatla < 350) {\ndigitalWrite(8, HIGH);\/\/w\u0142\u0105czenie diody\n} else {\ndigitalWrite(8, LOW);\/\/wy\u0142\u0105czenie diody\n}\ndelay(100);\n}\n<\/pre><\/div>\n\n\n
MicroPython<\/h1>\n\n\n\n
Schemat dla ESP8266 z wy\u015bwietlaczem tm1637. 
Ustawia jaskrawo\u015b\u0107 7SEGx4 w zale\u017cno\u015bci od o\u015bwietlenia. Potrzebna biblioteka tm1637.py
Rezystor o warto\u015bci 10k, VCC 3.3V<\/p>\n\n\n
\nimport time\nimport lib.tm1637 as tm1637, sys\nfrom machine import Pin, ADC\ntm = tm1637.TM1637(clk=Pin(5), dio=Pin(4))\n\ndef clearDisplay():\n    tm.write(bytearray([0, 0, 0, 0]))\n\ndef mapRange(value, inMin, inMax, outMin, outMax):\n    return outMin + (((value - inMin) \/ (inMax - inMin)) * (outMax - outMin))\n\nldr = ADC(0)                    #creating ldr object, pin A0\n\nwhile True:\n  ldr_value = ldr.read()   #reading analog pin\n  bright = round(mapRange(ldr_value, 0, 1024, 0, 7))\n  print(ldr_value, bright)                   #printing the ADC value\n  tm.brightness(bright)\n  tm.numbers(00, bright, False)\n  time.sleep(5)\n<\/pre><\/div>","protected":false},"excerpt":{"rendered":"
Dzi\u015b bardzo prosty schemat z fotorezystorem wykorzystuj\u0105cy dzielnik napi\u0119cia.<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[2,153,5,141,65],"tags":[85,151,16,17,67,134],"class_list":["post-69","post","type-post","status-publish","format-standard","hentry","category-arduino","category-arduino-ide","category-esp8266","category-micropython","category-programowanie","tag-7seg","tag-d1mini","tag-esp8266","tag-fotorezystor","tag-micropython","tag-tm1637"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t