components for reference

amplifier: https://www.aliexpress.com/item/1005010615740703.html?spm=a2g0o.productlist.0.0.76225026S6xHyD&mp=1&pdp_npi=6%40dis%21SEK%21SEK%20266.19%21SEK%20244.89%21%21SEK%20244.89%21%21%21%40211b813b17677250621275027e2c75%2112000052980362597%21ct%21SE%216370465720%21%211%210%21

voltage converter: https://www.aliexpress.com/item/1005009420286031.html?spm=a2g0o.productlist.0.0.76225026S6xHyD&mp=1&pdp_npi=6%40dis%21SEK%21SEK%2011.85%21SEK%2011.85%21%21SEK%2011.85%21%21%21%40211b813b17677250609154993e2c75%2112000049040507868%21ct%21SE%216370465720%21%211%210%21

load cell: https://www.aliexpress.com/item/1005009579738335.html?spm=a2g0o.productlist.main.16.14706fe77DaJBJ&algo_pvid=cba6065c-7274-472a-98fd-0f7c1a1c70a6&algo_exp_id=cba6065c-7274-472a-98fd-0f7c1a1c70a6-15&pdp_ext_f=%7B%22order%22%3A%2237%22%2C%22eval%22%3A%221%22%2C%22fromPage%22%3A%22search%22%7D&pdp_npi=6%40dis%21SEK%2195.44%2142.15%21%21%2170.81%2131.27%21%40211b61bb17677251481948919e5770%2112000049521578697%21sea%21SE%216370465720%21X%211%210%21n_tag%3A-29919%3Bd%3A16c59820%3Bm03_new_user%3A-29895%3BpisId%3A5000000198121730&curPageLogUid=4EKdRTWh0yAQ&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A1005009579738335%7C_p_origin_prod%3A