_____                 _                                                        
|   __|___ ___ ___ _ _|_|___ ___                                                
|   __|_ -| . |  _| | | |   | . |                                               
|_____|___|  _|_| |___|_|_|_|___|                                               
          |_|                                                               
   Copyright 2015 Gordon Williams
                                               
http://www.espruino.com

--------------------------------------------------------------

There are a few different binaries in this ZIP file, for different
types of Microcontroller:

espruino_2v21_pico_1r3.bin 
   - AT command WiFi support (includes all features)
espruino_2v21_pico_1r3_cc3000.bin 
   - CC3000 WiFi networking (without debugger, AT Command WiFi, vector font)
espruino_2v21_pico_1r3_wiznet.bin  
   - WIZNET W5500 ethernet (without debugger, AT Command WiFi, vector font)
 
   - The firmware image for Espruino Pico Boards.
     We'd strongly suggest that you use the Web IDE to flash this.
     Each image is for a different type of networking device.
     If you don't need networking, use espruino_2v21_pico_1r3.bin

espruino_2v21_espruino_1r3.bin  
   - No networking, includes all other features
espruino_2v21_espruino_1r3_at.bin  
   - AT command WiFi (without vector font)
espruino_2v21_espruino_1r3_wiznet.bin   
   - WIZNET W5500 ethernet (without crypto lib, debugger, vector font)

   - The firmware image for Original Espruino Boards
     We'd strongly suggest that you use the Web IDE to flash this.
     Each image is for a different type of networking device.
     If you don't need networking, use espruino_2v21_espruino_1r3.bin

espruino_2v21_wifi.bin  
   - The firmware image for Espruino WiFi Boards
     We'd strongly suggest that you use the Web IDE to flash this.

espruino_2v21_puckjs.zip
   - The firmware image for Espruino Puck.js Devices
     See http://www.espruino.com/Puck.js#firmware-updates for more information
     
espruino_2v21_puckjs_minimal.zip
   - The firmware image for Espruino Puck.js Devices
       Networking, graphics and crypto are removed which frees up roughly 60kB extra 
       Flash memory which can be used for Storage, bringing the total to 98kB.
     See http://www.espruino.com/Puck.js#firmware-updates for more information     

espruino_2v21_pixljs.zip
   - The firmware image for Espruino Pixl.js Devices
     See http://www.espruino.com/Pixl.js#firmware-updates for more information

espruino_2v21_banglejs.zip
   - The firmware image for Espruino Bangle.js 1 Devices
     See http://www.espruino.com/Bangle.js#firmware-updates for more information

espruino_2v21_banglejs2.zip
   - The firmware image for Espruino Bangle.js 2 Devices
     See http://www.espruino.com/Bangle.js2#firmware-updates for more information

espruino_2v21_mdbt42q.zip
   - The firmware image for Espruino MDBT42Q modules
     See http://www.espruino.com/MDBT42Q#firmware-updates for more information

espruino_2v21_stm32l496gdiscovery.bin
   - STM32F496GDISCOVERY board

espruino_2v21_stm32vldiscovery.bin
   - STM32VLDISCOVERY board

espruino_2v21_stm32f4discovery.bin
   - STM32F4DISCOVERY board

espruino_2v21_nucleof401re.bin
   - ST NUCLEO-F401RE board

espruino_2v21_nucleof411re.bin
   - ST NUCLEO-F411RE board

espruino_2v21_microbit1/2.hex
   - Espruino for the BBC micro:bit 1 or 2 - just copy the correct file onto the
     flash drive that appears when you plug the micro:bit in.

espruino_2v21_Wio_LTE.zip
   - The firmware image for Seed Wio LTE Devices
     See http://www.espruino.com/WioLTE for more information

espruino_2v21stm32l496gdiscovery.bin
   - The firmware image for the STM32L496G Discovery Board
     See http://www.espruino.com/STM32L496GDISCOVERY for more information

espruino_2v21rak8211.hex
   - The firmware image for the RAK8211 iTracker
     See http://www.espruino.com/RAK8211 for more information

espruino_2v21rak8212.hex
   - The firmware image for the RAK8212 iTracker
     See http://www.espruino.com/RAK8212 for more information

espruino_2v21smartibot.zip
   - The firmware image for the Smartibot robot board
     See http://www.espruino.com/Smartibot for more information

ESP8266 / ESP32
---------------

See http://www.espruino.com/EspruinoESP8266 for more info

espruino_2v21_esp8266_combined_512.bin
   - ESP8266 'combined' port for 512k devices like ESP01
       Flash with: esptool.py write_flash 0 espruino_2v21_esp8266_combined_512.bin

espruino_2v21_esp8266_4mb_combined_4096.bin
   - ESP8266 'combined' port for 4MB devices like ESP12
       Flash with: esptool.py write_flash 0 espruino_2v21_esp8266_combined_4096.bin

espruino_2v21_esp8266
   - ESP8266 port as separate files - see README in directory for more information

espruino_2v21_esp8266_4mb
   - ESP8266 port for 4mb devices as separate files - see README in directory for more information

espruino_2v21_esp32.zip
   - The firmware image for ESP32 Devices
     See http://www.espruino.com/ESP32 for more information




For more information on devices, and on how to flash these binary files on to 
each device, please see our website, http://www.espruino.com

NOTES:

* On the STM32F4DISCOVERY the default USART is USART2 (because
USART1 shares some pins with USB). This means you must connect
serial connections to PA2/PA3 NOT PA9/PA10 as you would for
the STM32VLDISCOVERY.