Differences

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--- boards:esp8266 [2020/08/19 13:03] – [AT firmware update] darron
+++ boards:esp8266 [2024/07/10 12:20] (current) – external edit 127.0.0.1
@@ Line 6: / Line 6: @@
 The Espressif Systems ESP8266 is used in cheap WiFi modules. It embeds an Xtensa LX3 CPU. ESP8266 boards named ESP-XX come with at least 1/2 megabyte of SPI flash for program storage.
+Also see [[tools:tasmota|tasmota]] for various applications of this processor.
 === Pinout ===
@@ Line 37: / Line 38: @@
 The default AT firmware can be updated using [[:tools:esptool|ESPTool]].
-To program the chip, keep GP0 low and reset the device.
+To program the chip, keep GPIO0 low and reset the device on EXT_RSTB.
 <code>
-wget "http://wiki.kewl.org/downloads/v0.9.2.2 AT Firmware.bin"
+wget "https://wiki.kewl.org/_media/downloads:v0.9.2.2_at_firmware.bin"
 esptool.py --port /dev/ttyUSB0 write_flash 0x000000 "v0.9.2.2 AT Firmware.bin"
 Connecting...
@@ Line 142: / Line 143: @@
 Although the ESP-01 only has 2 GPIOs, NodeMcu has I2C support and a circuit such as [[:projects:esp|this]] can extend its capabilities.
-=== Tasmota ===
-Tasmota is firmware providing support for various devices attached to an ESP8266. It has both and HTTP (web) and MQTT interface.
-It was primarily designed for SONOFF power switches but can be used with any device to give an MQTT enabled WIFI temperature monitor, for example.
-Here is an example seession for a SONOFF basic switch.
-Backup factory firmware.
-<code>
-esptool.py --port /dev/ttyUSB0 read_flash 0x00000 0x100000 image1M.bin
-</code>
-Write tasmota firmware.
-<code>
-esptool.py --port /dev/ttyUSB0 write_flash -fs detect -fm dout 0x0 sonoff-basic.bin
-</code>
-Now an example session with the D1 Mini Lite.
-Read MAC address.
-<code>
-esptool.py -p /dev/ttyUSB0 read_mac
-esptool.py v2.6-beta1
-Serial port /dev/ttyUSB0
-Connecting....
-Detecting chip type... ESP8266
-Chip is ESP8285
-Features: WiFi, Embedded Flash
-MAC: xx:xx:xx:xx:xx:xx
-Uploading stub...
-Running stub...
-Stub running...
-MAC: xx:xx:xx:xx:xx:xx
-Hard resetting via RTS pin...
-</code>
-Backup flash.
-<code>
-esptool.py -p /dev/ttyUSB0 -b 115200 read_flash 0 0x100000 FIRMWARE.BIN
-esptool.py v2.6-beta1
-Serial port /dev/ttyUSB0
-Connecting....
-Detecting chip type... ESP8266
-Chip is ESP8285
-Features: WiFi, Embedded Flash
-MAC: xx:xx:xx:xx:xx:xx
-Uploading stub...
-Running stub...
-Stub running...
-1048576 (100 %)
-1048576 (100 %)
-Read 1048576 bytes at 0x0 in 92.8 seconds (90.4 kbit/s)...
-Hard resetting via RTS pin...
-</code>
-Erase flash.
-<code>
-esptool.py --port /dev/ttyUSB0 erase_flash
-esptool.py v2.6-beta1
-Serial port /dev/ttyUSB0
-Connecting....
-Detecting chip type... ESP8266
-Chip is ESP8285
-Features: WiFi, Embedded Flash
-MAC: xx:xx:xx:xx:xx:xx
-Uploading stub...
-Running stub...
-Stub running...
-Erasing flash (this may take a while)...
-Chip erase completed successfully in 4.1s
-Hard resetting via RTS pin...
-</code>
-Write tasmota firmware.
-<code>
-esptool.py --port /dev/ttyUSB0 write_flash -fs detect -fm dout 0x0 sonoff.bin
-esptool.py v2.6-beta1
-Serial port /dev/ttyUSB0
-Connecting....
-Detecting chip type... ESP8266
-Chip is ESP8285
-Features: WiFi, Embedded Flash
-MAC: 60:01:94:b1:1b:ea
-Uploading stub...
-Running stub...
-Stub running...
-Configuring flash size...
-Auto-detected Flash size: 1MB
-Compressed 501424 bytes to 343631...
-Wrote 501424 bytes (343631 compressed) at 0x00000000 in 30.3 seconds (effective 132.5 kbit/s)...
-Hash of data verified.
-Leaving...
-Hard resetting via RTS pin...
-</code>
 === Resources ===
@@ Line 254: / Line 148: @@
 [[http://www.nodemcu.com/index_en.html|NodeMcu home page]]
-[[http://thehackbox.org/tasmota/release/|Tasmota]]

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