Belvedersky / espruino-esp32

simple example with Espruino esp32

Espruino ESP32

espruino npm

npm install -g espruino

esptool.py

$ pip install esptool

$ esptool.py                                       	\
        --chip esp32                                	\
        --port /dev/tty.SLAB_USBtoUART                  \
        --baud 921600                               	\
        --after hard_reset write_flash                  \
        -z                                          	\
        --flash_mode dio                            	\
        --flash_freq 40m                            	\
        --flash_size detect                         	\
        0x1000  bootloader.bin                      	\
        0x8000  partitions_espruino.bin                 \
        0x10000 espruino_esp32.bin

get port list: $ espruino --list

connect: $ espruino -p /dev/tty.SLAB_USBtoUART -b 115200

upload code: $ espruino -p /dev/tty.SLAB_USBtoUART -b 115200 -m blink/index.js

with save: $ espruino -p /dev/tty.SLAB_USBtoUART -b 115200 blink/index.js -e "save()"

ESP32 Features⇠

• 240 MHz dual core Tensilica LX6 microcontroller

• Built-in Wifi and Bluetooth (classic and BLE)

• 2.2V to 3.6V operating voltage

• 32 GPIO pins:

  • 3x UARTs, including hardware flow control
  • 3x SPI
  • 2x I2S
  • 12x ADC input channels
  • 2x DAC
  • 2x I2C
  • PWM/timer input/output available on every GPIO pin
  • Supports external SPI flash up to 16 MB
  • SD-card interface support

• Sensors: Ultra-low noise analog amplifier, Hall sensor, 10x capacitive touch interface, 32 kHz crystal oscillator