It has been a big week for the organization behind the credit card-sized Raspberry Pi computer. The Raspberry Pi Foundation on Monday announced the availability of the cheaper Model A version of its popular microcomputer and on Wednesday it revealed a new camera add-on for the device. The 5-megapixel camera module will be able to connect directly to the Raspberry Pi and is capable of capturing 1080p HD video. The Foundation revealed that the camera will cost $25 and is “at least a month away” from being released.