Mr_tentacle posted a bit about his new robot, the Gloom II – he writes “Gloom II replaces the original “Gloom”, which died of unknown causes. This is a Solarbotics Sumovore kit, which is a decent kit as these things go, but had a few issues, the biggest being a flawed trace on the main board that resulted in a short and was difficult to track down. This version is fitted with the optional BS2-compatible “brainboard” – the MCU is a BasicX BX-24p, much faster than a BS2, running a Sumo program of my own design. I ditched the 6 AA cells in favor of a 7.4V LiPoly; the AA cells seen beneath the LiPoly are there for ballast. “ – Link.