Withdrawn by writer.
Have shown the presto (running the vector clock) to two people and they both commented that it was rather bright.
Any chance of a forward facing light sensor like the one on the cosmic unicorn.
The only best location candidates I can see though are as a cutout above the display or at the bottom near one of the glow led’s.
…maybe you can use this one Multi-Sensor Stick (BME280 + LTR559 + LSM6DS3)
I have one as bought the starter kit (the LSM6DS3TR-C seems a little pointless to me - inertial nav anyone) but it looks ugly hanging anywhere but behind the presto making it difficult to detect the light level in the room especially if you want to use the glow led’s (not that I do but someone might).