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# Ausgangslage
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* UART WiFi Modul
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* Baud Rate: 115200
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* Based on ESP8266 ESP-06 SoC
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* AT Firmware: esp_iot_sdk_v1.1.0 + Seeed modifications:
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* 2x additional AT commands to control blue Link LED.
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* [AT command set](https://www.espressif.com/sites/default/files/documentation/4a-esp8266_at_instruction_set_en.pdf)
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* +19.5dBm output power in 802.11b
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# Bedingungen
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* Scoring
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* Spielresultate auf Datenbank persistieren
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# Aufbau
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* [Seeeduino V4.2](http://wiki.seeed.cc/Seeeduino_v4.2)
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* als [**Arduino UNO**](https://www.arduino.cc/en/Main/Software) programmieren
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* Input
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* [Wii Nunchuck](http://wiki.seeed.cc/Grove-NunChuck) - <code>I2C</code>
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* Output
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* Serial Monitor <code>UART</code>
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* [Led](http://wiki.seeed.cc/Grove-LED_Socket_Kit/) - <code>D8</code>
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* Input/Output
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* [Grove - UART Wi-Fi](http://wiki.seeed.cc/Grove-UART_Wifi/) - <code>UART: 2=Rx, 3=Tx</code>
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# Handlungsziele
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|Vorgehen|Hannok [Handlungsnotwendige Kenntnisse](https://cf.ict-berufsbildung.ch/modules.php?name=Mbk&a=20101&cmodnr=242&noheader=1)|
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|:-------|:------|
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|Kommunikation | UART |
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|Input/Output| AT Command SET |
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|sinnvolle Datentypen | CHAR |
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|Testbarkeit | Loggen, UART |
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# Code Sample
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[**ESP8266 AT Instruction Set**](https://www.espressif.com/sites/default/files/documentation/4a-esp8266_at_instruction_set_en.pdf)
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```c
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#include <SoftwareSerial.h>
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/* Use Serial Monitor with AT COMMAND SET as Input, e.g:
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AT
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AT+LEDON
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AT+LEDOFF
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more Infos: SP8266 AT Instruction Set
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*/
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#define DELAY 20
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#define BAUD_RATE_MONITOR 9600
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#define BAUD_RATE_WIFI 115200
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SoftwareSerial WiFi(2, 3); // Rx, Tx
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void setup() {
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Serial.begin(BAUD_RATE_MONITOR);
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while (!Serial); // wait for monitor UART
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WiFi.begin(BAUD_RATE_WIFI);
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while (!WiFi); // wait for WiFi UART
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Serial.println("Ready - Input AT Commands on Serial Monitor\n");
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}
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void loop() {
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if (Serial.available()) WiFi.write(Serial.read());
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delay(DELAY);
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if (WiFi.available()) Serial.write(WiFi.read());
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delay(DELAY);
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}
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``` |
