I’ve been reading through the forum planning my hardware, one question I have have regarding hive weight sensors - has anyone thought about using a single Bosch load cell and a metal hinge on the opposite side? This would make the platform more stable and eliminate the temperature differences when using two load sensors, while reducing costs and complexity.
You can use just a single 200kg BOSCHE load cell.
A hinge will not work, because the idea of a 50% load on the hinge and 50% load on the cell would only work, if the weight is 100% in balance and exactly in the middle.
That is never the case in your hive.
This manual with a single load cell is in german, but you should be able to translate it with Google and the pictures are pretty good.
This works very well and it is stable enough for a fully filled up hive with 50kg of honey.
This is very interesting and much easier to produce for me, can I ask your opinion on using two load cell each side instead of a single? I am worried about stability, with 150kg the H frame must be slightly unstable due to movement in the Aluminium?