JPEG camera + ESP8266
The LinkSprite 2MP JPEG camera is a little camera module can take pictures, compress them to JPEG files and send over UART. That combines perfectly with ESP8266 and RoboRemo, because ESP8266 can be programmed to interface the camera, and has UART port, and RoboRemo has image item that can receive and display images.
In the archive below, you can find the lua code for ESP8266 and code explanations, and the RoboRemo interface. I used the HUZZAH ESP module and nodemcu_integer_0.9.6-dev_20150704.bin firmware. Previously I was trying with ESP-01 with older NodeMCU and it was showing out of memory error (the lua code is quite big).