This weekend i finalized my ESP-01 programming adapter board.
The circuit is a little bit changed compared to the diagram posted earlier in the post “ESP-01 Module”
I added two terminals for connecting external 3,3V and GND. This change I made because I could not get the wifi function on the ESP-01 module to work, when the module was powered through the USB to TTL board.
On the left you see the board i made.
And here you see the board with the ESP-01 and USB-TTL modules connected.
I have not desided yet, but maybe I will add two terminals for wire connection to the GPIO0 and GPIO2.
I just received two off these small ESP-01 boards.
They are part off the ESP8266 family and have relly nice specs:
- ESP8266 chip.
- 2 dedicated GPIOs.
- Serial comms (or 2 additional GPIOs).
- Pin connectors.
- PWM, I2C, UART, OneWire.
- On-board WiFi + printed antenna, 802.11 b/g/n, 360m range.
- Able to become a wireless access point.
- Lua and Arduino firmware available.
- Able to run a web server.
- Dimensions: 24.75 x 14.5mm.
- Power: 3.3v. (important!!)
Instruction for flashing this little fellow can be found on http://www.esp8266basic.com/flashing-instructions.html
And I plan on building this flaching setup
I have attached a LED ws2812b to my NodeMCU which has the ESP8266 onboard and programmed it with the arduino IDE to connect to Cheerlights.
It will now connect to my home wifi network and change color every time a twitter message including #cheerlights and one of the supported colors is send.