{"id":75738,"date":"2020-02-13T19:59:47","date_gmt":"2020-02-13T13:59:47","guid":{"rendered":"http:\/\/rcl-radio.ru\/?p=75738"},"modified":"2022-01-08T22:25:12","modified_gmt":"2022-01-08T16:25:12","slug":"%d0%bc%d0%b8%d0%bb%d0%bb%d0%b8%d0%be%d0%bc%d0%bc%d0%b5%d1%82%d1%80-%d0%bd%d0%b0-%d0%b0%d1%86%d0%bf-mcp3421-arduino","status":"publish","type":"post","link":"http:\/\/rcl-radio.ru\/?p=75738","title":{"rendered":"\u041c\u0438\u043b\u043b\u0438\u043e\u043c\u043c\u0435\u0442\u0440 \u043d\u0430 \u0410\u0426\u041f MCP3421 (Arduino)"},"content":{"rendered":"

\u041c\u0438\u043b\u043b\u0438\u043e\u043c\u043c\u0435\u0442\u0440 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d \u043d\u0430 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0435 Arduino \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c 18-\u0431\u0438\u0442\u043d\u043e\u0433\u043e \u043e\u0434\u043d\u043e \u043a\u0430\u043d\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u0441\u0438\u0433\u043c\u0430-\u0434\u0435\u043b\u044c\u0442\u0430 \u0410\u0426\u041f MCP3421<\/a>. \u0410\u0426\u041f \u0438\u043c\u0435\u0435\u0442 \u0441\u0432\u043e\u0439 \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0438\u0439 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a \u043e\u043f\u043e\u0440\u043d\u043e\u0433\u043e \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f \u0438 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u0443\u0435\u043c\u044b\u0439 \u0443\u0441\u0438\u043b\u0438\u0442\u0435\u043b\u044c. \u0421\u0432\u044f\u0437\u044c \u0441 \u0410\u0426\u041f \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u043e \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0443 I2C (SDA \u0438 SCL === \u04104 \u0438 \u04105).<\/p>\n

\"\"<\/a><\/p>\n

\u0421\u0445\u0435\u043c\u0430 \u043c\u0438\u043b\u043b\u0438\u043e\u043c\u043c\u0435\u0442\u0440\u0430 \u043e\u0447\u0435\u043d\u044c \u043f\u0440\u043e\u0441\u0442\u0430\u044f, \u043f\u043e\u043c\u0438\u043c\u043e \u0410\u0426\u041f \u043e\u043d\u0430 \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442 4 \u043a\u043e\u043d\u0434\u0435\u043d\u0441\u0430\u0442\u043e\u0440\u0430 \u0438 \u043e\u0434\u043d\u043e \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u043e\u0435 \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435 (\u043c\u0430\u043d\u0433\u0430\u043d\u0438\u043d) \u0447\u0435\u0440\u0435\u0437 \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u043f\u043e\u0434\u0430\u0435\u0442\u0441\u044f \u0442\u043e\u043a \u043d\u0430 \u0438\u0437\u043c\u0435\u0440\u044f\u0435\u043c\u043e\u0435 \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435, \u043e\u0442 \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u0438 \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u043e\u0433\u043e \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u044f \u0437\u0430\u0432\u0438\u0441\u0438\u0442 \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u044c \u043f\u0440\u0438\u0431\u043e\u0440\u0430.<\/p>\n

<\/div>\n

\u041c\u0438\u043b\u043b\u0438\u043e\u043c\u043c\u0435\u0442\u0440 \u0438\u043c\u0435\u0435\u0442 \u0447\u0435\u0442\u044b\u0440\u0435 \u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d\u0430 \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442\u0441\u044f \u0438\u0437\u043c\u0435\u0440\u044f\u0442\u044c \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435 \u043e\u0442 0,0000 \u0434\u043e 8,5000 \u041e\u043c \u0432 \u043f\u0435\u0440\u0432\u043e\u043c \u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d\u0435, \u043e\u0442 8,500 \u0434\u043e 18,000 \u0432\u043e \u0432\u0442\u043e\u0440\u043e\u043c, \u043e\u0442 18,000 \u0434\u043e 38,000 \u0432 \u0442\u0440\u0435\u0442\u044c\u0435\u043c \u0438 \u043e\u0442 38,00 \u0434\u043e 172,00 \u041e\u043c \u0432 \u0447\u0435\u0442\u0432\u0435\u0440\u0442\u043e\u043c.<\/p>\n

\u0412 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0430 \u043e\u043f\u043e\u0440\u043d\u043e\u0433\u043e \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435 3,3 \u0412 \u043f\u043e\u0434\u0430\u0432\u0430\u0435\u043c\u043e\u0435 \u0441 \u043f\u043b\u0430\u0442\u044b Arduino, \u043d\u043e \u0432\u0441\u0435 \u0436\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0443\u044e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0439 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a \u043e\u043f\u043e\u0440\u043d\u043e\u0433\u043e \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f \u0441 \u0432\u044b\u0445\u043e\u0434\u043d\u044b\u043c \u0442\u043e\u043a\u043e\u043c \u043d\u0435 \u043c\u0435\u043d\u0435\u0435 50 \u043c\u0410.<\/p>\n

#include <Wire.h> \/\/ SDA \u0438 SCL (\u04104 \u0438 \u04105)<\/span>\r\n#include <MCP3421.h> \/\/ https:\/\/github.com\/liman324\/MCP3421.git<\/span>\r\n#include <LiquidCrystal_I2C.h> \/\/ http:\/\/forum.rcl-radio.ru\/misc.php?action=pan_download&item=45&download=1<\/span>\r\n  LiquidCrystal_I2C lcd(<\/span>0x27,16<\/span>,2<\/span>)<\/span>;\r\n  MCP3421 mcp;\r\n\u00a0\r\n unsigned long dig,dig_sum;\r\n float u,r;\r\n const float u3300 = 3.241<\/span>;  \/\/ \u043e\u043f\u043e\u0440\u043d\u043e\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435 (V)<\/span>\r\n const float  r_ogr = 100.00<\/span>;\/\/ \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u043e\u0435 \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435 (Om)<\/span>\r\n const float r_0 = 0.0014<\/span>;   \/\/ \u043f\u043e\u0433\u0440\u0435\u0448\u043d\u043e\u0441\u0442\u044c \u043d\u0443\u043b\u044f (Om)<\/span>\r\n int<\/span> i,n=0<\/span>,m;\r\n\u00a0\r\nvoid<\/span> setup(<\/span>)<\/span> {<\/span>\r\n Serial.begin<\/span>(<\/span>9600<\/span>)<\/span>;Wire.begin<\/span>(<\/span>)<\/span>;\r\n mcp.setConfig<\/span>(<\/span>3<\/span>,3<\/span>)<\/span>;\/\/ 12 14 16 18 bit - 0-3 \/\/ 1x 2x 4x 8x gain - 0-3<\/span>\r\n lcd.init<\/span>(<\/span>)<\/span>;lcd.backlight<\/span>(<\/span>)<\/span>;\r\n}<\/span>\r\n\u00a0\r\nvoid<\/span> loop(<\/span>)<\/span> {<\/span>  \r\n \/\/\/ \u0430\u0432\u0442\u043e \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d\u043e\u0432 \/\/\/\/\/\/\/\/\/<\/span>\r\n dig = mcp.readWire<\/span>(<\/span>)<\/span>;  \r\n if<\/span>(<\/span>dig><\/span>131070<\/span>&&<\/span>n==0<\/span>)<\/span>{<\/span>mcp.setConfig<\/span>(<\/span>3<\/span>,2<\/span>)<\/span>;delay(<\/span>50<\/span>)<\/span>;n=1<\/span>;}<\/span>\r\n if<\/span>(<\/span>dig><\/span>131070<\/span>&&<\/span>n==1<\/span>)<\/span>{<\/span>mcp.setConfig<\/span>(<\/span>3<\/span>,1<\/span>)<\/span>;delay(<\/span>50<\/span>)<\/span>;n=2<\/span>;}<\/span>\r\n if<\/span>(<\/span>dig><\/span>131070<\/span>&&<\/span>n==2<\/span>)<\/span>{<\/span>mcp.setConfig<\/span>(<\/span>3<\/span>,0<\/span>)<\/span>;delay(<\/span>50<\/span>)<\/span>;n=3<\/span>;}<\/span>\r\n if<\/span>(<\/span>dig<<\/span>65000<\/span>&&<\/span>n==1<\/span>)<\/span>{<\/span>mcp.setConfig<\/span>(<\/span>3<\/span>,3<\/span>)<\/span>;delay(<\/span>50<\/span>)<\/span>;n=0<\/span>;}<\/span>\r\n if<\/span>(<\/span>dig<<\/span>65000<\/span>&&<\/span>n==2<\/span>)<\/span>{<\/span>mcp.setConfig<\/span>(<\/span>3<\/span>,2<\/span>)<\/span>;delay(<\/span>50<\/span>)<\/span>;n=1<\/span>;}<\/span>\r\n if<\/span>(<\/span>dig<<\/span>65000<\/span>&&<\/span>n==3<\/span>)<\/span>{<\/span>mcp.setConfig<\/span>(<\/span>3<\/span>,1<\/span>)<\/span>;delay(<\/span>50<\/span>)<\/span>;n=2<\/span>;}<\/span>\r\n\u00a0\r\n  \/\/ \u043a\u0430\u043b\u0438\u0431\u0440\u043e\u0432\u043a\u0430 \u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d\u043e\u0432 \/\/<\/span>\r\n dig = mcp.readWire<\/span>(<\/span>)<\/span>; \r\n if<\/span>(<\/span>n==0<\/span>)<\/span>{<\/span>u = dig *<\/span> 0.2569<\/span> \/<\/span>131071<\/span>;}<\/span>\/\/ n0 8   Om<\/span>\r\n if<\/span>(<\/span>n==1<\/span>)<\/span>{<\/span>u = dig *<\/span> 0.5156<\/span> \/<\/span>131071<\/span>;}<\/span>\/\/ n1 18  Om<\/span>\r\n if<\/span>(<\/span>n==2<\/span>)<\/span>{<\/span>u = dig *<\/span> 1.0270<\/span> \/<\/span>131071<\/span>;}<\/span>\/\/ n2 38  Om<\/span>\r\n if<\/span>(<\/span>n==3<\/span>)<\/span>{<\/span>u = dig *<\/span> 2.0510<\/span> \/<\/span>131071<\/span>;}<\/span>\/\/ n3 170 Om<\/span>\r\n\u00a0\r\n \/\/\/ \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u0438\u0435 \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/ <\/span>\r\n while<\/span>(<\/span>i<<\/span>20<\/span>)<\/span>{<\/span>i++;dig = mcp.readWire<\/span>(<\/span>)<\/span>;\r\n dig_sum = dig_sum+dig;delay(<\/span>50<\/span>)<\/span>;}<\/span>\r\n i=0<\/span>;dig=dig_sum\/<\/span>20<\/span>;dig_sum=0<\/span>;\r\n\u00a0\r\n \/\/\/ \u043c\u043e\u043d\u0438\u0442\u043e\u0440 \u043f\u043e\u0440\u0442\u0430 \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/<\/span>\r\n Serial.print<\/span>(<\/span>dig)<\/span>;Serial.print<\/span>(<\/span>\"  u=\"<\/span>)<\/span>;Serial.print<\/span>(<\/span>u,6<\/span>)<\/span>;Serial.print<\/span>(<\/span>\"  r=\"<\/span>)<\/span>;\r\n Serial.print<\/span>(<\/span>(<\/span>(<\/span>r_ogr*<\/span>u)<\/span>\/<\/span>(<\/span>u3300-u)<\/span>)<\/span>-r_0,4<\/span>-n)<\/span>;Serial.print<\/span>(<\/span>\"  n=\"<\/span>)<\/span>;Serial.println<\/span>(<\/span>n)<\/span>;\r\n\u00a0\r\n switch<\/span>(<\/span>n)<\/span>{<\/span>\r\n  case<\/span> 0<\/span>: m=4<\/span>;break<\/span>;\r\n  case<\/span> 1<\/span>: m=3<\/span>;break<\/span>;\r\n  case<\/span> 2<\/span>: m=3<\/span>;break<\/span>;\r\n  case<\/span> 3<\/span>: m=2<\/span>;break<\/span>;\r\n  }<\/span>\r\n r = (<\/span>(<\/span>r_ogr*<\/span>u)<\/span>\/<\/span>(<\/span>u3300-u)<\/span>)<\/span>-r_0;\r\n if<\/span>(<\/span>r><\/span>172<\/span>)<\/span>{<\/span>lcd.setCursor<\/span>(<\/span>0<\/span>, 0<\/span>)<\/span>;lcd.print<\/span>(<\/span>\" R > 172.00 Om \"<\/span>)<\/span>;}<\/span>\r\n else<\/span>{<\/span>lcd.setCursor<\/span>(<\/span>0<\/span>, 0<\/span>)<\/span>;lcd.print<\/span>(<\/span>\" R = \"<\/span>)<\/span>;lcd.print<\/span>(<\/span>r,m)<\/span>;lcd.print<\/span>(<\/span>\" Om   \"<\/span>)<\/span>;}<\/span>\r\n lcd.setCursor<\/span>(<\/span>0<\/span>, 1<\/span>)<\/span>;lcd.print<\/span>(<\/span>\" N \"<\/span>)<\/span>;lcd.print<\/span>(<\/span>n)<\/span>;\r\n if<\/span>(<\/span>r><\/span>172<\/span>)<\/span>{<\/span>lcd.setCursor<\/span>(<\/span>5<\/span>, 1<\/span>)<\/span>;lcd.print<\/span>(<\/span>\" 0.000\"<\/span>)<\/span>;lcd.print<\/span>(<\/span>\" mA\"<\/span>)<\/span>;}<\/span>\r\n else<\/span>{<\/span>lcd.setCursor<\/span>(<\/span>5<\/span>, 1<\/span>)<\/span>;lcd.print<\/span>(<\/span>\" \"<\/span>)<\/span>;lcd.print<\/span>(<\/span>(<\/span>u3300\/<\/span>(<\/span>r+r_ogr)<\/span>)<\/span>*<\/span>1000<\/span>)<\/span>;lcd.print<\/span>(<\/span>\" mA\"<\/span>)<\/span>;}<\/span>\r\n}<\/span><\/pre>\n
\u041d\u0430 \u0434\u0438\u0441\u043f\u043b\u0435\u0439 LCD1602 (I2C) \u0432\u044b\u0432\u043e\u0434\u044f\u0442\u0441\u044f \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u0438\u044f, \u0430 \u0442\u0430\u043a \u0436\u0435 (\u0432\u043e \u0432\u0442\u043e\u0440\u043e\u0439 \u0441\u0442\u0440\u043e\u043a\u0435) \u043d\u043e\u043c\u0435\u0440 \u043f\u0440\u0435\u0434\u0435\u043b\u0430 \u0438 \u0442\u043e\u043a \u043f\u0440\u043e\u0445\u043e\u0434\u044f\u0449\u0438\u0439 \u0447\u0435\u0440\u0435\u0437 \u0438\u0437\u043c\u0435\u0440\u044f\u0435\u043c\u043e\u0435 \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435.<\/p>\n
\u0414\u043b\u044f \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u044b \u043c\u0438\u043b\u043b\u0438\u043e\u043c\u043c\u0435\u0442\u0440\u0430 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e \u043f\u0440\u043e\u0438\u0437\u0432\u0435\u0441\u0442\u0438 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0443. \u0421\u043a\u0435\u0442\u0447 \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0445 \u043e\u0442 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0437\u0430\u0432\u0438\u0441\u0438\u0442 \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u044c \u043f\u0440\u0438\u0431\u043e\u0440\u0430.<\/p>\n
\u0412 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0445 \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0445 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e \u0443\u043a\u0430\u0437\u0430\u0442\u044c \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435 \u043f\u0438\u0442\u0430\u043d\u0438\u044f \u0410\u0426\u041f, \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u0442\u0430\u043a \u0436\u0435 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u043f\u043e\u0440\u043d\u044b\u043c, \u043d\u043e\u043c\u0438\u043d\u0430\u043b \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u043e\u0433\u043e \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u043f\u043e\u0433\u0440\u0435\u0448\u043d\u043e\u0441\u0442\u044c \u043d\u0443\u043b\u044f (\u0443\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u0442\u0441\u044f \u043f\u043e\u0441\u043b\u0435 \u043f\u0440\u0435\u0434\u0432\u0430\u0440\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u043a\u0430\u043b\u0438\u0431\u0440\u043e\u0432\u043a\u0438 \u043e\u043f\u043e\u0440\u043d\u043e\u0433\u043e \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f \u0438 \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u0430 \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u043e\u0433\u043e \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u044f). \u0414\u043b\u044f \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u043f\u043e\u0433\u0440\u0435\u0448\u043d\u043e\u0441\u0442\u0438 \u043d\u0443\u043b\u044f \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e \u0437\u0430\u043a\u043e\u0440\u043e\u0442\u0438\u0442\u044c \u0432\u0445\u043e\u0434\u043d\u044b\u0435 \u043a\u043e\u043d\u0442\u0430\u043a\u0442\u044b \u043c\u0438\u043b\u043b\u0438\u043e\u043c\u043c\u0435\u0442\u0440\u0430 \u0438 \u0441\u0447\u0438\u0442\u0430\u0442\u044c \u043f\u043e\u043a\u0430\u0437\u0430\u043d\u0438\u044f \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u044f \u0441 \u0434\u0438\u0441\u043f\u043b\u0435\u044f \u0438\u043b\u0438 \u043c\u043e\u043d\u0438\u0442\u043e\u0440\u0430 \u043f\u043e\u0440\u0442\u0430.<\/p>\n
const float u3300 = 3.241<\/span>; \/\/ \u043e\u043f\u043e\u0440\u043d\u043e\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435 (V)<\/span><\/p>\n
const float r_ogr = 100.00<\/span>;\/\/ \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u043e\u0435 \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435 (Om)<\/span><\/p>\n
const float r_0 = 0.0014<\/span>; \/\/ \u043f\u043e\u0433\u0440\u0435\u0448\u043d\u043e\u0441\u0442\u044c \u043d\u0443\u043b\u044f (Om)<\/span><\/p><\/blockquote>\n
\u041f\u043e\u0441\u043b\u0435 \u043f\u0440\u0435\u0434\u0432\u0430\u0440\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u043a\u0430\u043b\u0438\u0431\u0440\u043e\u0432\u043a\u0438 \u0434\u043b\u044f \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u044f \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u0438 \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u0438\u0439 \u0412\u0430\u043c \u043f\u043e\u043d\u0430\u0434\u043e\u0431\u0438\u0442\u0441\u044f \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u044b\u0445 \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0439 \u0438\u043b\u0438 \u043c\u0430\u0433\u0430\u0437\u0438\u043d \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0439 \u0441 \u043a\u043b\u0430\u0441\u0441\u043e\u043c \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u0438 0,02. \u0422\u0430\u043a \u043a\u0430\u043a \u043c\u043d\u043e\u0436\u0438\u0442\u0435\u043b\u044c \u0410\u0426\u041f \u043d\u0435 \u043e\u0447\u0435\u043d\u044c \u0442\u043e\u0447\u0435\u043d, \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e \u043f\u043e\u0434\u043e\u0431\u0440\u0430\u0442\u044c \u043f\u043e\u043f\u0440\u0430\u0432\u043e\u0447\u043d\u044b\u0435 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442\u044b \u0434\u043b\u044f \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d\u0430.<\/p>\n
if<\/span>(<\/span>n==0<\/span>)<\/span>{<\/span>u = dig *<\/span> 0.2569<\/span><\/strong> \/<\/span>131071<\/span>;}<\/span>\/\/ n0 8 Om<\/span><\/p>\n
if<\/span>(<\/span>n==1<\/span>)<\/span>{<\/span>u = dig *<\/span> 0.5156<\/span><\/strong> \/<\/span>131071<\/span>;}<\/span>\/\/ n1 18 Om<\/span><\/p>\n
if<\/span>(<\/span>n==2<\/span>)<\/span>{<\/span>u = dig *<\/span> 1.0270<\/span><\/strong> \/<\/span>131071<\/span>;}<\/span>\/\/ n2 38 Om<\/span><\/p>\n
if<\/span>(<\/span>n==3<\/span>)<\/span>{<\/span>u = dig *<\/span> 2.0510<\/span><\/strong> \/<\/span>131071<\/span>;}<\/span>\/\/ n3 170 Om<\/span><\/p><\/blockquote>\n
\u0414\u043b\u044f \u043f\u043e\u0434\u0431\u043e\u0440\u0430 \u043f\u043e\u043f\u0440\u0430\u0432\u043e\u0447\u043d\u043e\u0433\u043e \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442\u0430 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435 \u0441 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u044c\u044e (\u043c\u0430\u0433\u0430\u0437\u0438\u043d \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u044f) \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u0430\u043c\u0438\u00a0 8, 18, 38, 170 \u041e\u043c \u0438 \u043d\u0430 \u043a\u0430\u0436\u0434\u043e\u043c \u0434\u0438\u0430\u043f\u0430\u0437\u043e\u043d\u0435 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u0438\u0442\u044c \u043d\u0443\u0436\u043d\u044b\u0439 \u043a\u043e\u044d\u0444\u0444\u0438\u0446\u0438\u0435\u043d\u0442 \u0434\u043e\u0431\u0438\u0432\u0448\u0438\u0441\u044c \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0439 \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u0438 \u0438\u0437\u043c\u0435\u0440\u0435\u043d\u0438\u044f \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u044f.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
\n
R0 = 0.0179 \u041e\u043c<\/p>\n
\"\"<\/td>\n
\"\"<\/a><\/td>\n<\/tr>\n
\"\"<\/td>\n\n
0.0287-0.0179 = 0.0108 \u041e\u043c<\/p>\n
\"\"<\/a><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\n\n
0,0718-0,0179 = 0,0539 \u041e\u043c<\/p>\n
\"\"<\/a><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\n\n
0,1210-0,0179 = 0,1031 \u041e\u043c<\/p>\n
\"\"<\/a><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\n\n
0,5290-0,0179 = 0,5111 \u041e\u043c<\/p>\n
\"\"<\/a><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\n\n
1,0201-0,0179 = 1,0022 \u041e\u043c<\/p>\n
\"\"<\/a><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\n\n
5,0029-0,0179 = 4,985 \u041e\u043c<\/p>\n
\"\"<\/a><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\n\n
10,024-0,0179 = 10,0061 \u041e\u043c<\/p>\n
\"\"<\/a><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\n\"\"<\/a><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\n\"\"<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u0424\u043e\u0440\u0443\u043c — http:\/\/forum.rcl-radio.ru\/viewtopic.php?pid=923#p923<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u041c\u0438\u043b\u043b\u0438\u043e\u043c\u043c\u0435\u0442\u0440 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d \u043d\u0430 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0435 Arduino \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c 18-\u0431\u0438\u0442\u043d\u043e\u0433\u043e \u043e\u0434\u043d\u043e \u043a\u0430\u043d\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u0441\u0438\u0433\u043c\u0430-\u0434\u0435\u043b\u044c\u0442\u0430 \u0410\u0426\u041f MCP3421. \u0410\u0426\u041f \u0438\u043c\u0435\u0435\u0442 \u0441\u0432\u043e\u0439 \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0438\u0439 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a \u043e\u043f\u043e\u0440\u043d\u043e\u0433\u043e \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f \u0438 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u0443\u0435\u043c\u044b\u0439 \u0443\u0441\u0438\u043b\u0438\u0442\u0435\u043b\u044c. \u0421\u0432\u044f\u0437\u044c \u0441 \u0410\u0426\u041f \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u043e \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0443 I2C (SDA \u0438 SCL === \u04104 \u0438 \u04105). \u0421\u0445\u0435\u043c\u0430 \u043c\u0438\u043b\u043b\u0438\u043e\u043c\u043c\u0435\u0442\u0440\u0430 \u043e\u0447\u0435\u043d\u044c \u043f\u0440\u043e\u0441\u0442\u0430\u044f, \u043f\u043e\u043c\u0438\u043c\u043e \u0410\u0426\u041f \u043e\u043d\u0430 \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442 4 \u043a\u043e\u043d\u0434\u0435\u043d\u0441\u0430\u0442\u043e\u0440\u0430 \u0438 \u043e\u0434\u043d\u043e \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u043e\u0435 \u0441\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435 (\u043c\u0430\u043d\u0433\u0430\u043d\u0438\u043d) \u0447\u0435\u0440\u0435\u0437 \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u043f\u043e\u0434\u0430\u0435\u0442\u0441\u044f […]<\/p>\n","protected":false},"author":1,"featured_media":75757,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[239,15],"tags":[],"class_list":["post-75738","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arduino","category-15"],"views":13389,"_links":{"self":[{"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/posts\/75738","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=75738"}],"version-history":[{"count":4,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/posts\/75738\/revisions"}],"predecessor-version":[{"id":111274,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/posts\/75738\/revisions\/111274"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/media\/75757"}],"wp:attachment":[{"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=75738"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=75738"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=75738"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}