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boards:esp8266 [2020/08/19 13:03] darron [AT firmware update] |
boards:esp8266 [2023/12/15 07:52] (current) darron [Espressif Systems ESP8266] |
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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 === | ||
| Line 37: | Line 38: | ||
| The default AT firmware can be updated using [[: | The default AT firmware can be updated using [[: | ||
| - | To program the chip, keep GPIO0 low and reset the device. | + | To program the chip, keep GPIO0 low and reset the device |
| < | < | ||
| - | wget "http:// | + | wget "https:// |
| esptool.py --port / | esptool.py --port / | ||
| Connecting... | Connecting... | ||
| Line 142: | Line 143: | ||
| 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 === | ||
| Line 254: | Line 148: | ||
| [[http:// | [[http:// | ||
| - | [[http:// | ||
