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Grove WiFi 8266 - IoT for micro:bit and beyond

Features

• Based on ESP-12F (ESP8266 MCU) WiFi module
• Serial UART Interface (Baud rate: 115200bps)
• ESP-AT (AT command) firmware v2.2.0
• Grove 4-pin connector (Rx, Tx, Vcc ,Gnd)
• Onboard Reset & Boot switch
• Built-in power LED
• All the pins of the ESP-12F are extended out with clear labels
• 3V - 6V supply input voltage
• 32Mbit built-in SPI Flash
• 802.11 b/g/n protocol (2.4GHz)
• MakeCode extension provided
• CircuitPython libraries provided

Resources

• Grove WiFi 8266 datasheet
• Getting started tutorial (micro:bit)
• MakeCode extension for micro:bit
• CircuitPython libraries for Raspberry Pi Pico & RP2040
• Cytron custom compiled ESP-AT firmware
• How to update ESP-AT firmware
• Grove WiFi 8266 CAD files
• Espressif ESP-AT commands user guide

weitere Links

• SparkFun WiFi Module - ESP8266 (4MB Flash)
• WRL-17146
• ESP8266 NURDspace
• ESP8266 Instructables Tutorial

AT Commands

• Basic AT Commands

  AT+RST: Restart a Module.
  ATE0: Echo off
  ATE1: Echo on
  AT+GMR: Check Version Information.
  AT+CMD?: List all AT commands and types supported in current firmware
  

• Wi-Fi AT Commands
• Wi-Fi AT Examples

  AT+CWMODE=1: Station mode
  AT+CWJAP="SSID","password": Connect to an AP
  AT+CWJAP?: Query the AP to which the ESP Station is already connected.
  

• MQTT AT Commands
• MQTT AT Examples

  AT+MQTTUSERCFG=0,1,"client_id","username","password",0,0,"": Set MQTT user configuration
  AT+MQTTCONN=0,"192.168.31.113",1883,0: Connect to MQTT Brokers
  AT+MQTTCONN?: Query the MQTT broker that ESP devices are connected to.
  AT+MQTTPUB=0,"topic","data",1,0: Publish MQTT Messages in string
  AT+MQTTSUB=0,"topic",1
  AT+MQTTCLEAN=0: Close the MQTT connection and release the resource.
  

MakeCode

• ericbusboom/Microbit-Wifi-MQTT
• ESP8266_IoT package
• KittenBot WiFi Module (of PowerBrick) based on ESP8266 for microbit

RobotShop

Beschreibung

• Grove WiFi 8266 IoT für micro:bit & Beyond
• Entwickelt für micro:bit (Nicht enthalten)
• Kommt vorinstalliert mit der neuen Espressif ESP-AT Firmware v2.2.0
• Onboard-Reset und Boot-Schalter
• Eingebaute Power-LED
• Versorgungseingangsspannung: 3 - 6 V

Das Grove WiFi 8266 IoT für micro:bit & Beyond wurde entwickelt, um es Ihrem micro:bit (und auch anderen Controllern) zu ermöglichen, Daten über das Internet über das Wi-Fi-Netzwerk zu senden/zu empfangen. Es basiert auf dem ESP-12F-Modul des Ai-Thinker und wird mit der neuen Espressif ESP-AT-Firmware v2.2.0 vorinstalliert.

Grove WiFi 8266 IoT für micro:bit & Beyond - Datenblatt