![]() ![]() I found it much simpler to use the esp8266 as network adapter with a firmware if it can't be used standalone. You can split your projects into two sketches, one for the esp8266 and one for Uno, but that can be inconvenient. ![]() But it seems that a common way is to use AT commands. But when I typed in "AT+GMR", reponses "ERROR" (baud rate: 115200, no response at 9600) How shall I pass through AT commands to ESP correct way?Īfter many searches I am not sure that this config (UNO+Wifi 32Mbit) is OTA capable?Īnother dilemma is arosen: Why do we use AT commands' firmware to control ESPs? I mean what is the advantage of it compared to other firmwares? (To tell the truth: what other firmwares are existing?) When I started to explore work with ESP modules I imagined that communication between Uno and ESP is through UART (print) and a receiving sketch is uploaded to ESP. When I typed into Serial Monitor "AT", I received "OK". I also tried SerialPassThrough sketch but it is not clear what would be the right result. I applied ChangeATBaudRate sketch and Serial Monitor (at baudrate: 115200) replied: "Sending baud rate change. I tried lib WiFiEspAT.h from GitHub created by jandrassy. Wiring works, DIP switch is set as 3, 4 is ON, other OFF. SoftwareSerial is applied to pin 6, 7 as RX, TX. This topic is regarding firmware types and OTA possibilites of a composite board based on ATmega328p and ESP8266 (it seems to be a clone of Robotdyn UNO+WiFi R3 ATmega328P+ESP8266, 32Mb flash, USB-TTL CH340G, Micro-USB)Īfter reading Initial set up for UNO with Wi-FI (XC4411) and Robotdyn atmega328 uno r3 + Wifi I still have some unclear points.ĮSP8266 firmware is updated according to the description of Espressif (Flashtool v3.8.5) with AT.bin v 1.7.4. ![]()
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