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| public:arduino:esp01 [2021/05/25 23:54] – rom1 | public:arduino:esp01 [2021/05/26 00:09] (current) – rom1 | ||
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| + | arduino nano esp8266 esp 01 wifi | ||
| + | |||
| + | **use buck converter (LM2596) for 3.3v** | ||
| {{ : | {{ : | ||
| + | |||
| + | * There is a bug in the code: | ||
| + | * SoftwareSerial softSerial(3, | ||
| + | * should be | ||
| + | * SoftwareSerial softSerial(2, | ||
| + | * Also the suggested baud rate of 9600 doesnt seem to work, adjust to 115200 and go from there. Once you get a receiving signal, run the following to adjust the 01's baud to 9600: | ||
| + | * AT+UART_DEF=9600, | ||
| + | * After this, reflash your nano with serial bauds set to 9600 and you should be able to send AT commands over your Nano to the ESP-01 via 9600 baud | ||
| + | |||
| + | |||
| + | |||
| + | < | ||
| + | #include < | ||
| + | SoftwareSerial softSerial(2, | ||
| + | |||
| + | void setup() | ||
| + | { | ||
| + | uint32_t baud = 9600; | ||
| + | Serial.begin(baud); | ||
| + | softSerial.begin(baud); | ||
| + | Serial.print(" | ||
| + | Serial.println(baud); | ||
| + | } | ||
| + | |||
| + | void loop() | ||
| + | { | ||
| + | while(softSerial.available() > 0) | ||
| + | { | ||
| + | char a = softSerial.read(); | ||
| + | if(a ==' | ||
| + | continue; | ||
| + | if(a != ' | ||
| + | continue; | ||
| + | Serial.print(a); | ||
| + | } | ||
| + | | ||
| + | while(Serial.available() > 0) | ||
| + | { | ||
| + | char a = Serial.read(); | ||
| + | Serial.write(a); | ||
| + | softSerial.write(a); | ||
| + | } | ||
| + | } | ||
| + | </ | ||
| + | |||
| + | |||
| + | * AT – Will give OK on the serial monitor, if Not just unplug vcc Pin of ESP8266 Module for a moment and reconnect again. | ||
| + | * Send AT+RST – Command to Restart module / Optional Command | ||
| + | * Send AT+GMR – To get the firmware version | ||
| + | * Send AT+CWMODE? – Set Module to a Dual Mode Sucha as Standalone + Access Point mode. | ||
| + | * Send AT+CWLAP – Command to Search Nearby Wifi Access Point. Find your Wifi Name in the Search Result. | ||
| + | * Send AT+CWJAP=”Your Wifi Name”, | ||
| + | * Send AT+CIFSR – Command to Check Allocated Ip given by your Wifi to your ESP8266 Module/ | ||
