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boards:esp8266 [2020/08/19 13:04] – [AT firmware update] darron | boards:esp8266 [2024/07/10 12:20] (current) – external edit 127.0.0.1 | ||
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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. | 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: | ||
=== Pinout === | === Pinout === | ||
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< | < | ||
- | wget "http:// | + | wget "https:// |
esptool.py --port / | esptool.py --port / | ||
Connecting... | Connecting... | ||
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Although the ESP-01 only has 2 GPIOs, NodeMcu has I2C support and a circuit such as [[: | Although the ESP-01 only has 2 GPIOs, NodeMcu has I2C support and a circuit such as [[: | ||
- | |||
- | === 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. | ||
- | |||
- | < | ||
- | esptool.py --port / | ||
- | </ | ||
- | |||
- | Write tasmota firmware. | ||
- | |||
- | < | ||
- | esptool.py --port / | ||
- | </ | ||
- | |||
- | Now an example session with the D1 Mini Lite. | ||
- | |||
- | Read MAC address. | ||
- | |||
- | < | ||
- | esptool.py -p / | ||
- | |||
- | esptool.py v2.6-beta1 | ||
- | Serial port / | ||
- | Connecting.... | ||
- | Detecting chip type... ESP8266 | ||
- | Chip is ESP8285 | ||
- | Features: WiFi, Embedded Flash | ||
- | MAC: xx: | ||
- | Uploading stub... | ||
- | Running stub... | ||
- | Stub running... | ||
- | MAC: xx: | ||
- | Hard resetting via RTS pin... | ||
- | </ | ||
- | |||
- | Backup flash. | ||
- | |||
- | < | ||
- | esptool.py -p / | ||
- | |||
- | esptool.py v2.6-beta1 | ||
- | Serial port / | ||
- | Connecting.... | ||
- | Detecting chip type... ESP8266 | ||
- | Chip is ESP8285 | ||
- | Features: WiFi, Embedded Flash | ||
- | MAC: 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... | ||
- | </ | ||
- | |||
- | Erase flash. | ||
- | |||
- | < | ||
- | esptool.py --port / | ||
- | |||
- | esptool.py v2.6-beta1 | ||
- | Serial port / | ||
- | Connecting.... | ||
- | Detecting chip type... ESP8266 | ||
- | Chip is ESP8285 | ||
- | Features: WiFi, Embedded Flash | ||
- | MAC: 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... | ||
- | </ | ||
- | |||
- | Write tasmota firmware. | ||
- | |||
- | < | ||
- | esptool.py --port / | ||
- | |||
- | esptool.py v2.6-beta1 | ||
- | Serial port / | ||
- | Connecting.... | ||
- | Detecting chip type... ESP8266 | ||
- | Chip is ESP8285 | ||
- | Features: WiFi, Embedded Flash | ||
- | MAC: 60: | ||
- | 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... | ||
- | </ | ||
=== Resources === | === Resources === | ||
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[[http:// | [[http:// | ||
- | [[http:// |