ESPino

You can program ESPino with the Arduino IDE for ESP8266 or with LUA, with the node-mcu firmware.

Installing the USB driver

• Mac OSX:

  1. Go to the Drivers folder and open SiLabsUSBDriverDisk.dmg
  2. Execute Silicon Labs VCP Driver.pkg and follow the instructions

• Windows:

  1. Go to the Drivers folder and unzip CP210x_VCP_Windows.zip
  2. Execute the firmware corresponding to your system (x86 or x64).

• Linux:

  It should be automatically detected and mounted on /dev/ttyUSB0 or similar.

Programming with the Arduino IDE for ESP8266

You can find installation instructions and documentation here: https://github.com/esp8266/Arduino

Step by step videotutorial with ESPino (in spanish): https://youtu.be/HYZPlrH3jCE

Using the ESPlorer IDE

• Upload the node-mcu firmware to ESPino, instructions are at the end of this document
• Make sure you have Java installed in your PC (https://www.java.com/en/download/)
• Launch it making double click on ESPlorer.jar, or on Windows, ESPlorer.bat
• Select the correct serial port, 9600 bauds and click open
• An error saying that the expected response was not received could appear, this is normal
• You can open one of the examles in the examples folder, and execute it with "Send to ESP" (it is not permanently saved to the ESP, it will be lost if it's restarted)
• You can save it in the ESP with "Save to ESP". If you want it to be executed as the ESP starts, you should save it with the name init.lua
• You can see node-mcu's documentation here: https://github.com/nodemcu/nodemcu-firmware/wiki/nodemcu_api_en

Documentation

You can find the Datasheet, schematic and other info of ESPino in the "Docs" folder included with this file.

Uploading node-mcu firmware

For programming the ESPino in lua, you need to upload the node-mcu firmware, for that do the following:

Windows

1. Connect the ESPino to the PC via an micro-USB cable, make sure you have already installed the driver
2. Launch "ESP8266Flasher.exe"
3. Select the COM port corresponding to ESPino

4. In the "Config" tab, press the gear icon in the first element and select the firmware file. In the "nodemcu-firmware" folder you can find two versions, with or without floating point support.

5. Put the ESPino in Bootloader mode:

I. Press the RESET and USER/PROG buttons at the same time without releasing them

II. Release the RESET button, keeping USER/PROG pressed

III. Wait a second and release USER/PROG

6. Click "Flash" for uplading the firmware
7. When it's finished, press the RESET button

OSX an Linux

Open a terminal and go to the folder where this file lies:

cd [path to this folder]

Connect the ESPino via USB and put it in Bootloader mode:

1. Press the RESET and USER/PROG buttons at the same time without releasing them
2. Release the RESET button, keeping USER/PROG pressed
3. Wait a second and release USER/PROG

Install the serialport deoendency for esptool, execute:

sudo easy_install -U pyserial

Execute the following for uploading the firmware:

esptool/esptool.py -p /dev/tty.SLAB_USBtoUART write_flash 0x000000 nodemcu-firmware/pre_build/latest/nodemcu_latest.bin

Note: You may need to change the serial port path /dev/tty.SLAB_USBtoUART in the previous command line depending on your system.