SummaryTinyOLED V1.2 Module 128x64 for RAMPS • 128x64 pixel 1.3" I2C OLED / 0.96" I2C OLED (Detachable) • TinyOLED V1.2 Connector Board (Custom Design : 45mm x 37mm) • TF Card Module (Offline Printing, Detachable) • Rotary Encoder (User Control) • BlueTooth HC-05 Module (Wireless Connection - short range, Detachable) • ESP8266-01 WIFI Module (Wifi Connection - long range, Deachable) Printing Option USB (COM Port) + TF Card + Bluetooth (COM Port) USB (COM Port) + TF Card + WIFI (COM Port) WIFI (TCP/IP) + TF Card + Bluetooth (COM Port) •Change Bitmap to OLED with LCD Bitmap converter http://forums.reprap.org/read.php?276,446731,448751#msg-448751 http://ati-soft.biz/lbc.htm http://www.HKMakers.hk https://www.youtube.com/watch?v=C3Gf1nd3yl0Bluetooth settingsBluetooth HC-05 Setting :- Connect to TX, RX to D1, D2 of RAMPS, 5V to 5V, GND to GND - Press and hold Button on HC-05 before power on RAMPS, wait until HC-05 with slow flash (2s flash) - use the arduino code from web site to set the USART speed to 115200 - Enable Bluetooth on Marlin, uncomment #DEFINE BTENABLED, compile and upload - Connect using 11520 from PC, SmartPhone or Tablet - Finished with showing temperature of hotend to room temperatureWIFI SettingESP8266-01 WIFI Setting download NodeMCU Flasher https://github.com/nodemcu/nodemcu-flasher download NodeMCU firmware https://github.com/nodemcu/nodemcu-firmware Load NodeMCU firmware into ESP8266 using NodeMCU Flasher Download ESplorer - Integrated Development Environment (IDE) for ESP8266 developers https://github.com/4refr0nt/ESPlorer Download init.lua https://github.com/MakerChetan/3D-Printing-ESP8266 Upload Init.lua onto ESP8266 using ESPlorer Final : Setup Repetier-Host to connect using IP Address http://creatorbot.com/projects/electronics/add-esp8266-wifi-to-your-3d-printer