OpenWRT packages for Blynk C++ library
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Blynk OpenWRT package

Build from source:

echo "src-git blynk git://" >> ./feeds.conf
./scripts/feeds update -a
./scripts/feeds install -p blynk -a
make menuconfig

Node.js client

You need nxhack openwrt-node for this.

Select in menuconfig: Languages -> Node.js -> node-blynk-library

Node.js example:

const Blynk = require('blynk-library');

// Initialize Blynk
let AUTH = 'YourAuthToken';
let blynk = new Blynk.Blynk(AUTH);
let v1 = new blynk.VirtualPin(1);

// Register virtual pin handler
v1.on('write', function(param) {
    console.log('Got a value:', param);

Python 2.7 client

Select in menuconfig: Languages -> Python -> python-blynk-library

Python example:

import BlynkLib

# Initialize Blynk
AUTH = 'YourAuthToken'
blynk = BlynkLib.Blynk(AUTH)

# Register virtual pin handler
def v1_write_handler(value):
    print('Got a value: {}'.format(value))

# Start Blynk (this call should never return)

C++ client

Select in menuconfig: Network -> Blynk -> blynk

C++ example:

#include <BlynkApiLinux.h>
static BlynkTransportSocket blynkTransport;
BlynkSocket Blynk(blynkTransport);

const char* AUTH = "YourAuthToken";

    printf("Got a value: %s\n", param[0].asStr());

int main(int argc, char* argv[]) {

    while (true) {;

    return 0;

Build OpenWRT image:

make -j 5

Build just Blynk:

make package/blynk/compile V=s
make package/node-blynk-library/compile V=s
make package/python-blynk-library/compile V=s

For a rebuild:

make package/blynk/{clean,compile,install} V=s