JSON parser for Arduino : No External Library

Serial Data Parsing is recommended(Baud-rate) Can’t store more than 256 characters in the Buffer Memory. So I have to Extract and store only required variables

Input :

Open Weather API Data

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Approach

1. Stored only alpha-characters, colon,& comma for further parsing
2. Using colon for parsing and separating the values
3. Then Applying Search Algorithm to find the only the required keywords

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Output

coord:lon:75.9,lat:22.72,weather:id:800,main:Clear,description:clearsky,icon:01d,base:stations,main:temp:36.91,pressure:952.84,humidity:32,temp_min:36.91,temp_max:36.91,sea_level:1009.45,grnd_level:952.84,wind:speed:7.96,deg:268.509,clouds:all:0,dt:1528890123,sys:message:0.01,country:IN,sunrise:1528848664,sunset:1528897322,id:1269743,name:Indore,cod:200

Converts Json into key-value Pair. e.g. temp,pressure,humidity and wind-speed can be easily extracted, stored in buffer memory and others can be ignored

Application Areas

• Space Compact programs
• No Use of External Library