Witty_Cloud.md

Installing Blynk.NCP on Witty Cloud

Prerequisites

Hardware:

• Witty Cloud (ESP8266)
• Micro-USB cable

Software:

• Espressif esptool
• Blynk.NCP firmware binary: BlynkNCP_generic_esp8266_4M.flash.bin

Flash Blynk.NCP firmware

1. Assemble the Witty Cloud board (insert the top part into the bottom part)
2. Connect the board to your PC using the bottom USB port

Run this command:

esptool.py --baud 460800 --before default_reset --after hard_reset write_flash --flash_size detect --erase-all 0x0 BlynkNCP_generic_esp8266_4M.flash.bin

Expected esptool output

esptool.py v4.6.2
Serial port /dev/ttyUSB1
Connecting....
Detecting chip type... ESP8266
Chip is ESP8266EX
Features: WiFi
Crystal is 26MHz
MAC: 4c:75:25:xx:xx:xx
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 460800
Changed.
Configuring flash size...
Auto-detected Flash size: 4MB
Erasing flash (this may take a while)...
Chip erase completed successfully in 9.8s
Compressed 515296 bytes to 372588...
Wrote 515296 bytes (372588 compressed) at 0x00000000 in 8.4 seconds (effective 490.8 kbit/s)...
Hash of data verified.

Leaving...
Hard resetting via RTS pin...

Verify

1. Re-connect the USB cable.

2. Use your favorite serial terminal software (PuTTY, minicom, screen) to access the TTL serial console (38400 8N1).

3. Press the RST button on the Witty Cloud and wait a few seconds.

4. The serial monitor should display:

   [rpc port] Blynk.NCP started
   Version: x.x.x, Build: (date and time)
   

Finish

1. Disconnect the USB cable from Witty Cloud.
2. Detach the top and bottom parts.
3. Use the top part of Witty Cloud as your Network Co-Processor.