sorry for the blast of replies lol, but hall effect sensor stuff is giving me flashbacks to when I was trying to use one -> ADC on an ATTiny10 (because the digital ones were expensive...) and I was doing some crazy opamp pre-conditioning so the ADC would see 0-Vcc for field strength instead pretty sure it's this one, because I was just going for the cheapest and that's why it was worth it to add an opamp and all the passives: still cheaper than a digital one: https://www.digikey.com/en/products/detail/honeywell-sensing-and-productivity-solutions/SS39ET/2839676 .... all for a demon core toy that I never made more than 1 of in the end