Difference between revisions of "Protocol decoder:Esp8266"
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Revision as of 15:05, 3 November 2014
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| Name | ESP8266 |
|---|---|
| Description | WiFi Serial Transceiver. |
| Status | planned |
| License | GPLv2+ |
| Source code | decoders/ |
| Input | uart |
| Output | esp8266 |
| Probes | — |
| Optional probes | — |
The esp8266 protocol decoder supports the UART command protocol spoken by modules equipped with an ESP8266 WiFi transceiver chip.
Hardware
The ESP8266 chip contains an Xtensa LX106 CPU and a radio for IEEE 802.11b/g/n.
Modules
Various online marketplaces sell modules containing the ESP8266 (and a few assisting components) that comes preprogrammed with a TCP/IP stack that can be controlled via RS232 commands.
- ESP-01
ESP-01, top
GigaDevice GD25Q40B 4Mbit SPI flash
Connector: 2x4pin male 2.54mm header
Function Pin Pin Function U0TXD 1 2 GND CHIP_EN 3 4 GPIO2 EXT_RSTB 5 6 GPIO0 VCC 7 8 U0RXD (Note: The PCB has two square pads at the pin header, so it's not clear which one should be pin number 1. The table above assumes that the module is oriented as shown in the picture from the top, with the antenna on the right side, pin 1 is then in the top left corner and pin 8 next to the SPI flash chip.)
- ESP-02
TODO
- ESP-03
TODO
- ESP-04
TODO
- ESP-05
TODO