![What are these buttons? And how would I interface an esp32 with them? This is the inside of a Honeywell HPA300 Air Purifier : r/diyelectronics What are these buttons? And how would I interface an esp32 with them? This is the inside of a Honeywell HPA300 Air Purifier : r/diyelectronics](https://external-preview.redd.it/f0xMC_UMHtxZ15ta1Lhbl9DOIL1Kls7xPbpgXxDqz14.jpg?auto=webp&s=0b81ecf15795a8ca9762dd264a8ee312801a21f1)
What are these buttons? And how would I interface an esp32 with them? This is the inside of a Honeywell HPA300 Air Purifier : r/diyelectronics
![Honeywell 4-Speed Black True HEPA Air Purifier ENERGY STAR (Covers: 465-sq ft) in the Air Purifiers department at Lowes.com Honeywell 4-Speed Black True HEPA Air Purifier ENERGY STAR (Covers: 465-sq ft) in the Air Purifiers department at Lowes.com](https://mobileimages.lowes.com/productimages/1ebb85f9-3eb9-4cb1-9544-5d23dab26a11/44884906.jpg)
Honeywell 4-Speed Black True HEPA Air Purifier ENERGY STAR (Covers: 465-sq ft) in the Air Purifiers department at Lowes.com
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HPA300 HEPA Replacement Filter R for Honeywell HPA 300 HPA200 Air Purifier, 3-Pack : Amazon.co.uk: Home & Kitchen
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HPA300 HEPA Filter Replacement for Honeywell Air Purifier & Replacement Filter R Compatible with HPA300 HPA304 HPA5300 HPA8350 HPA300VP (3 HEPA Filters & 6 Pre-cut Activated Carbon Pre Filters) : Amazon.co.uk: Home
![Honeywell Air Purifier, HPA300, 465 sq ft, HEPA Filter, Allergen, Smoke, Pollen, Dust Reducer - Walmart.com Honeywell Air Purifier, HPA300, 465 sq ft, HEPA Filter, Allergen, Smoke, Pollen, Dust Reducer - Walmart.com](https://i5.walmartimages.com/asr/739f090d-944b-4c8f-9be3-45fdd4ac43c3.c53c0d1955c6239a17f39b19bf260787.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Honeywell Air Purifier, HPA300, 465 sq ft, HEPA Filter, Allergen, Smoke, Pollen, Dust Reducer - Walmart.com
![Honeywell True HEPA Replacement Filter for HPA100, HPA200, HPA300 series Air Purifiers | The Home Depot Canada Honeywell True HEPA Replacement Filter for HPA100, HPA200, HPA300 series Air Purifiers | The Home Depot Canada](https://images.homedepot.ca/productimages/p_1000733813.jpg?product-images=l)
Honeywell True HEPA Replacement Filter for HPA100, HPA200, HPA300 series Air Purifiers | The Home Depot Canada
![Fil-fresh HPA300 Filter Compatible with Honeywell Air Purifier, 3 HEPA Filters & 6 Carbon Pre-Filters, Part# HRF-ARVP300 : Amazon.co.uk: Home & Kitchen Fil-fresh HPA300 Filter Compatible with Honeywell Air Purifier, 3 HEPA Filters & 6 Carbon Pre-Filters, Part# HRF-ARVP300 : Amazon.co.uk: Home & Kitchen](https://m.media-amazon.com/images/I/71kFBhTUmvL._AC_UF894,1000_QL80_.jpg)