Blynk HTTP RESTful API Time Input

Hi there,

I was wondering how the data structure of the time input widget is when I read it over the http restful api.

I tried it with a web browser and this was the answer:


What are these diamond symbol with the “?” in it?

Thanks and regards

Details can be found at Specials (Unicode block) - Wikipedia

Thanks for your quick response.

My problem is that the Arduino Uno Wifi which I am using is interpreting the Replacement character wrongly.

I am using it with the Ciao Library because it is the only option for that device. If I try to read the virtual pin pointing to my time input widget I get back only the first 4 characters until the first replacement character.

Has someone an idea what the problem could be?

Here is my code:

#include <Wire.h>
#include <Ciao.h>
#define CONNECTOR     "rest" // define connector type for the Ciao Library
#define SERVER_ADDR   "" // IP address
// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "YourAuthToken";
void setup() {
  Ciao.println("WiFi connected");
void loop() {
  Serial.print("Reading value: ");
  String rcommand = String("/") + auth + "/get/V2";
  CiaoData rdata =, SERVER_ADDR, rcommand);
  String rvalue = String(rdata.get(2));
  Ciao.println("Reading V2: "+ rvalue);