Uses an impeeduino to test the imp.scanwifinetworks() while in offline mode.

test_scanwifinetworks.device.nut

// Pin 2 is the red LED
ACTIVITY <- hardware.pin2;
ACTIVITY.configure(DIGITAL_OUT);
ACTIVITY.write(1);

// Pin 8 is the orange LED
LINK <- hardware.pin8;
LINK.configure(DIGITAL_OUT);
LINK.write(1);

function blink_link(count = 5, led = LINK, speed = 0.3) {
    for (local i = 0; i < count; i++) {
        led.write(0);
        imp.sleep(speed);
        led.write(1);
        imp.sleep(speed);
    }
}

function scan_and_send() {
    ACTIVITY.write(0);
    local nets = imp.scanwifinetworks();
    ACTIVITY.write(1);
    
    if (nets) blink_link(nets.len())
}

function loop() {
    imp.wakeup(10, loop);
    
    blink_link(10, ACTIVITY, 0.05);
    scan_and_send();
}
loop();

imp.wakeup(10, function() {
    server.disconnect();
})