2015-06-14
After presenting the project on June the 10th, I have tried to improve the graphic interface of my project, but I unfortunately have some issues with some answering delay of the Esp8266, probably due to the images I put into the app.
2015-05-10
After the Interface and application programming week I developped a protocol in C with a web interface written in Javascript. This video is a short demo of the functioning of that interface:
I would like to improve the web interface to give it a nicer look.
2015-05-05
ESP8266 test
I tested some connection between server and client but I have some problem, in order:
- SERVER SIDE: After changing the init.lua now the http server can start normally in the start boot, the server side accept the APP twister command.
- CLIENT SIDE: I tryed to change init.lua code for start a wifi.STATION (wifiConfig.mode = 1), after the boot client don’t like connecting at server:
log output:
NodeMCU 0.9.6 build 20150406 powered by Lua 5.1.4
set (mode=1)
MAC: 18-FE-34-9C-5C-C4
chip: 10247364
heap: 16224
Communication with MCU...
...Got answer! AutoDetect firmware...
Can't autodetect firmware, because proper answer not received.
>
>
>
> Connecting to WiFi Access Point ...
Connecting to WiFi Access Point ...
Connecting to WiFi Access Point ...
Connecting to WiFi Access Point ...
Connecting to WiFi Access Point ...
Faild to connect to WiFi Access Point.
print(ip)
nil
only after send command via ftdi take an ip address:
> ip = wifi.sta.getip()
> print(ip)
192.168.4.2
start manually http server:
> dofile("httpserver.lc")(80)
nodemcu-httpserver running at http://192.168.4.2:80
But If I try to connect direcly via web browser.. the client not respond!
NodeMCU firmware
- download and install python
- Download and install serialPY
- download esptool.py
In this case, select firmware for ESP01 and download nodemcu-firmware-master/pre_build/0.9.4/514k-flash/nodemcu_512k_latest.bin
open terminal and send this command
python esptool.py –port /dev/yournameport(tty.etcetc) write_flash 0x000000 /Users/ifala/Downloads/nodemcu-firmware-master/pre_build/0.9.4/512k-flash/nodemcu_512k_latest.bin
now I have install the default nodemcu firmware inside the ESP01
to programming the esp01 you must write 2 files and upload with ESPlorer (for osx)
2015-04-08
After discuss with my instructor, I discovered this board WIFI ESP8266 for the connection wifi of my twister cube:
FEATURES
802.11 b / g / n
Wi-Fi Direct (P2P), soft-AP
Built-in TCP / IP protocol stack
Built-in TR switch, balun, LNA, power amplifier and matching network
Built-in PLL, voltage regulator and power management components
802.11b mode + 19.5dBm output power
Built-in temperature sensor
Support antenna diversity
off leakage current is less than 10uA
Built-in low-power 32-bit CPU: can double as an application processor
SDIO 2.0, SPI, UART
STBC, 1×1 MIMO, 2×1 MIMO
A-MPDU, A-MSDU aggregation and the 0.4 Within wake
2ms, connect and transfer data packets
standby power consumption of less than 1.0mW (DTIM3)
2015-02-22
I need (I think a bluethoot or a wifi connection) here I have fine a good video (and a tutorial)[http://giltesa.com/2012/12/21/conectar-dos-arduino-mediante-bluetooth] link how to connect via bluethoot 2 arduino…
another video tutorial Slave/Master bluethoot
Sparkfun XBee USB Breakout Boards
in this article (he connect arduino master/slave