Topics created by Xio1996

This problem i realized with the desktop version of UIFlow, therefore i used only the online version.

Hi Lukas, Thank you for the link. I will see if I can use their method. I did find a solution that works. I noticed that the received data starting at index 11 was getting ASCII codes so I modified the Arduino code to construct a String starting from that position. The ESP-Now OnDataRecv callback now looks like this (the string construction is in bold). void OnDataRecv(const uint8_t *mac_addr, const uint8_t *data, int data_len) { char macStr[18]; String tData=""; char Ascii[1]; for(int i=10;i<data_len;i++) { tData+=(char)data[i]; } snprintf(macStr, sizeof(macStr), "%02x:%02x:%02x:%02x:%02x:%02x", mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]); Serial.print("Last Packet Recv from: "); Serial.println(macStr); Serial.print("Data Length: "); Serial.println(data_len); Serial.print("Last Packet Recv Data: '"); Serial.print(tData); Serial.println("'"); } Arduino Output 13:38:11.806 -> Last Packet Recv from: d8:a0:1d:55:4b:38 13:38:11.806 -> Data Length: 22 13:38:11.806 -> Last Packet Recv Data: 'Hello World!'