Fairly simple, I have a small 8pin chip on a board, and I have no idea what its doing, and cant find any information about it online. There are no manufacturer logos on it, and the serial number doesnt seem to come up anywhere. All 4 pins on the left side are connected to ground, and its difficult to see what the pins on the right are connected to. It may be connected to an SPI bus (the component on the right is a microcontroller).
The board actually seems like it should be fairly simple (just a microcontroller, a radio unit, and a keypad with some LEDs), but then there are a load of components connected near the battery and I have no idea why. One of them is a Vreg to bring the voltage down to 3.3V, but the rest... I feel like this chip possibly has something to do with it. The board is also supposed to be very low power.