ESP
From base48
ESP8266
- http://l0l.org.uk/2014/12/esp8266-modules-hardware-guide-gotta-catch-em-all/
- http://www.esp8266.com/wiki/doku.php?id=esp8266_gpio_pin_allocations
- ESPtool with pre-build binaries https://git.48.io/esptool
- Luatool fork https://github.com/hackerspace/luatool
- ESPLib
- Haskell management utilities https://git.48.io/esphs/
Boards
snajpa's
srk's
Flashing NodeMCU
- Clone ESPtool from https://git.48.io/esptool
git clone https://git.48.io/esptool.git
- add jumper to flash enable pins - isolated pin header with two pins GPIO0 and GND.
- connect VCC and GND pins to 5V on USB serial converter
- connect ESP RX/TX pins
- try plugging in serial converter, led on the ESP should blink briefly
- flash dev firmware (or debug firmware if needed)
cd esptool
./flash_bin_dev
- remove jumper
- start terminal with 115200 baudrate
miniterm.py /dev/ttyUSB0 115200
- disconnect and re-connect power to ESP (preferably without disconnecting USB serial converter as you wouldn't see early boot messages)
- NodeMCU should start
- during first boot you should see Self adjusting flash size and Formatting filesystem messages
- after formatting you should get NodeMCU prompt >
Early boot
$ miniterm.py /dev/ttyUSB0 74880
Program
$ miniterm.py /dev/ttyUSB0 115200
sometimes
$ miniterm.py /dev/ttyUSB0 9600
Flashing custom build nodemcu
./esptool.py -b 921600 write_flash -fm dio 0x00000 bin/0x00000.bin 0x10000 bin/0x10000.bin
NodeMCU build
customization
app/include/user_config.h
app/include/user_modules.h
app/include/user_version.h
triac_reg_pinout
0: GPIO16 (no pwm or interrupt!)
1: GPIO5 230 sense
2: GPIO4 triac out
3: GPIO0 (Special: Bootloader when low)
4: GPIO2
5: GPIO14 debug led
6: GPIO12 ws2812 4x4 array
7: GPIO13
8: GPIO15
RX: GPIO3
TX: GPIO1
A0:
toggle(dir_pin)
slider_pinout
0: GPIO16
1: GPIO5 enable
2: GPIO4 direction
3: GPIO0 (Special: Bootloader when low)
4: GPIO2 debug led
5: GPIO14 step
6: GPIO12 ws2812 4x4 array
7: GPIO13
8: GPIO15
RX: GPIO3
TX: GPIO1
A0:
