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Firmware for BigClown WiFi Cryptoclock
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.vscode @ cc95d68 Cryptoclock Aug 3, 2019
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sdk @ 5b8b2e5 Cryptoclock Aug 3, 2019
.editorconfig Added description of WiFi module Aug 3, 2019
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README.md

README.md

BigClown Logo

Firmware for BigClown WiFi Cryptoclock

Displays the current date, time and Bitcoin price in USD.

Photo of WiFi Cryptoclock

Components

WiFi module

Use ESP-12E or ESP-12F (optimized PCB antenna) with 4MB (32Mb) flash size.

ESP8266 firmware

Flash latest ESP8266 NonOS AT firmware.

sudo apt install esptool
  • Connect WiFi module with USB to UART Bridge
WiFi module USB to UART Bridge
P2 TX
P3 RX
P8 3V3 or RTS
IO0 GND or DTR
VDD 3V3
GND GND
  • Check right connection
esptool --port /dev/ttyUSB0 --baud 115200 chip_id
  • Download and flash firmware
wget https://www.espressif.com/sites/default/files/ap/ESP8266_NonOS_AT_Bin_V1.7.1.zip
unzip ESP8266_NonOS_AT_Bin_V1.7.1.zip
cd ESP8266_NonOS_AT_Bin_V1.7.1
esptool --port /dev/ttyUSB0 --baud 115200 --chip esp8266 write_flash --flash_size 2MB-c1 0x00000 bin/boot_v1.7.bin 0x01000 bin/at/1024+1024/user1.2048.new.5.bin 0x1fc000 bin/esp_init_data_default_v08.bin 0xfe000 bin/blank.bin 0x1fe000 bin/blank.bin
  • Disconnect IO0 pin and check version via AT command
picocom -b 115200 --omap crcrlf /dev/ttyUSB0
AT+GMR

Other boards

You can use other ESP8266 board like NodeMCU or Wemos D1 mini and connect it with wires:

ESP8266 board BigClown Core Module
RX P2
TX P3
EN P8
3V3 VDD
GND GND

License

This project is licensed under the MIT License - see the LICENSE file for details.


Made with ❤  by HARDWARIO s.r.o. in the heart of Europe.

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