************************************ Hardware Reference ************************************ :link_to_translation:`zh_CN:[中文]` .. toctree:: :maxdepth: 1 :not esp32c2: Technical Reference Manual (PDF) <{IDF_TARGET_TRM_EN_URL}> :esp32: Chip Datasheet (PDF) :esp32s2: Chip Datasheet (PDF) :esp32c3: Chip Datasheet (PDF) :esp32s3: Chip Datasheet (PDF) :esp32: Hardware Design Guidelines (PDF) :esp32s2: Hardware Design Guidelines (PDF) :esp32c3: Hardware Design Guidelines (PDF) :esp32s3: Hardware Design Guidelines (PDF) :esp32: Silicon Errata (PDF) Chip Variants Modules Development Boards Espressif KiCad Library ESP Product Selector Regulatory Certificates User Forum (Hardware)