Here is a tutorial on how to bind tasker and Blynk, via the restfull api http://docs.blynkapi.apiary.io/#reference
we will use a plugin called RESTask
we will fist cover how to write data :
1. download the plugin https://play.google.com/store/apps/details?id=com.freehaha.restask&hl=en
2. open tasker, new task, click the "+", plugin, then "RESTask"
3. click the pen
4. request type : PUT
5. host : http://cloud.blynk.cc/your_token/pin/D1 (for real pin)
or http://cloud.blynk.cc/your_token/pin/V1 (for virtual pin)
6. enable "custom body"
7. custom body : if you want to activated pin : ["1"]
if you want to deactivate pin: ["0"]
8. Go to "header tab"
9. click "add more"
10 : name : Content-Type
you can check if your program work by clicking the play triangle, if it works, click the save icon and enjoy !
if you want to read data, you have to change:
step 4 : it will be "get" instead of "put", and at
step 6: you have to uncheck the custom body
Your data will be stored in the tasker variable %rtres
ps : if you want to add more security between your phone and the server, check the discussion under this post