some beekeepers info https://www.youtube.com/watch?v=7Va-jUCYS2I

A lesson on the

• wheatstone-bridge https://www.youtube.com/watch?v=_QIDMeWjtS4
• load cell suppliers
  • https://www.youtube.com/watch?v=cQtKeXBC25Y
• Reading a load cell
  • https://www.youtube.com/watch?v=sxzoAGf1kOo
• Combining the signals of 2 load cells
  • https://www.youtube.com/watch?v=zwvGtRr8HDk
• Connecting 3 wire cells
  • https://electronics.stackexchange.com/questions/102164/3-wire-load-cells-and-wheatstone-bridges-from-a-bathroom-scale

• Broedkamer 20-25kg,
• Honingkamer van 5-15kg.
• 3x honingkamer en 1x broedkamer is in de zomer, wanneer meten juist belangrijk is, heel normaal
• 3x 15 + 1x25 = 70Kg

Broodminder

DIY parts info: https://broodminder.com/pages/the-new-diy-weight-scale

W2 calibration video: https://www.youtube.com/watch?v=Hh9VKOsFOh8

ADC:

• TI ADS1234

Load cells:

• 4x 50Kg, full bridge, micro load cells
• 2x 200Kg, full bridge, bar/strain gauge, TypeNr: K0701453

beehivemonitoring

https://beehivemonitoring.com/product/hive-scale-xs/

DIY info:

load cells:

• 4x 50Kg, half bridge, micro load cells. Hive Weight 200Kg Max. Type: ?
• 4x 100Kg, half bridge, bar/strain gauge. Hive Weight 400Kg Max. Type: GPB144R
  • the circuitboard(s) seems to have 3 connectors per load-cell in the manual https://beehivemonitoring.com/manual-2/

BEEP

https://beep.nl/home-english

Load cell:

• 1x 150Kg, full bridge, bar/strain gauge, Type: Bosche H40A: 0-150 kg (+/- 0.1%)

hiveeyes

• https://www.hiveeyes.org/ OpenSource

HoneyPi

• Reusing an existing weight scale https://honey-pi.de/en/waegezellen/