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Release 2.0.beta2

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@tve tve released this 29 Aug 20:44
· 431 commits to master since this release
v2.0.beta2
1c761ab

This is a beta release

For a stable release please use: https://github.com/jeelabs/esp-link/releases/tag/v1.0.1

Warnings

  • This release does not fit into 512KB flash, it requires larger flash (e.g. as typically found in esp-12 modules).
    If your module has 512KB flash, try the latest V1 release.
  • If your module has a 512KB version of esp-link V1 flashed you cannot upgrade over-the-air,
    you have to serially flash the larger firmware - sorry.

Features:

  • over-the-air (OTA) reflashing of the esp
  • port 23 transparent bridge
  • AVR & ARM flashing support
  • outbound TCP connections from attached micro-controller to the internet (NEW in 2.0)
  • outbound HTTP REST requests from attached microcontroller using espduino library and protocol
  • console page to see the attached uC's output
  • simple debug log page to view the esp-link's own os_printf output
  • buttons to reset the uC and change the baud rate
  • pin configuration selector to change GPIO function assignments
  • saving of configuration changes in flash

Changes since v2.0.beta1:

  • new feature: outbound HTTP REST requests

This version uses the Espressif IOT SDK version 1.3.0.

Install via serial upload

The short version for the serial install is:

  • flash boot_v1.4(b1).bin from the official esp_iot_sdk_v1.3.0 and included in the release tgz to 0x00000
  • flash blank.bin from the official SDK and also included in the tgz to 0x3FE000
  • flash user1.bin to 0x01000

On Linux using esptool.py this turns into the following for a 32mbit=4MBte flash chip, such as an esp-12 module typically has:

curl -L https://github.com/jeelabs/esp-link/releases/download/v2.0.beta2/esp-link-v2.0.beta2-4MB.tgz | tar xzf -
cd esp-link-v2.0.beta2
esptool.py --port /dev/ttyUSB0 --baud 460800 write_flash -fs 32m -ff 80m 0x00000 boot_v1.4\(b1\).bin 0x1000 user1.bin 0x3FE000 blank.bin

I use a high baud rate as shown above because I'm impatient, but that's not required.

Upgrade over-the-air

To upgrade from an earlier version of esp-link:

curl -L https://github.com/jeelabs/esp-link/releases/download/v2.0.beta2/esp-link-v2.0.beta2-4MB.tgz | tar xzf -
cd esp-link-2.0.beta2
./wiflash <esp-hostname> user1.bin user2.bin

Installing esptool.py

On Linux use esptool.py to flash the esp8266.
If you're a little python challenged then the following install instructions might help:

  • Install ez_setup with the following two commands (I believe this will do something
    reasonable if you already have it):

    wget https://bootstrap.pypa.io/ez_setup.py
python ez_setup.py

  • Install esptool.py:

    git clone https://github.com/themadinventor/esptool.git
cd esptool
python setup.py install
cd ..
esptool.py -h
Assets 3