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chip)","other":{}},{"id":"header","kind":"2 × 9 edge pins, 2.54 mm pitch, plus GPIO pads on the back","other":{},"pitch_mm":2.54,"pin_count":38},{"id":"battery","kind":"B+ / B− lithium battery pads (on common HW-747-style boards; verify per board)","other":{}}],"pin_mappings":[{"other":{},"signal":"GPIO43","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"TX","child_pin_id":"GPIO43"},{"other":{},"signal":"GPIO44","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"RX","child_pin_id":"GPIO44"},{"other":{},"signal":"GPIO1","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO1","child_pin_id":"GPIO1"},{"other":{},"signal":"GPIO2","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO2","child_pin_id":"GPIO2"},{"other":{},"signal":"GPIO3","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO3","child_pin_id":"GPIO3"},{"other":{},"signal":"GPIO4","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO4","child_pin_id":"GPIO4"},{"other":{},"signal":"GPIO5","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO5","child_pin_id":"GPIO5"},{"other":{},"signal":"GPIO6","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO6","child_pin_id":"GPIO6"},{"other":{},"signal":"GPIO7","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO7","child_pin_id":"GPIO7"},{"other":{},"signal":"GPIO8","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO8","child_pin_id":"GPIO8"},{"other":{},"signal":"GPIO9","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO9","child_pin_id":"GPIO9"},{"other":{},"signal":"GPIO10","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO10","child_pin_id":"GPIO10"},{"other":{},"signal":"GPIO11","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO11","child_pin_id":"GPIO11"},{"other":{},"signal":"GPIO12","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO12","child_pin_id":"GPIO12"},{"other":{},"signal":"GPIO13","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO13","child_pin_id":"GPIO13"},{"other":{},"signal":"GPIO14","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO14","child_pin_id":"GPIO14"},{"other":{},"signal":"GPIO15","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO15","child_pin_id":"GPIO15"},{"other":{},"signal":"GPIO16","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO16","child_pin_id":"GPIO16"},{"other":{},"signal":"GPIO17","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO17","child_pin_id":"GPIO17"},{"other":{},"signal":"GPIO18","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO18","child_pin_id":"GPIO18"},{"other":{},"signal":"GPIO21","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO21","child_pin_id":"GPIO21"},{"other":{},"signal":"GPIO33","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO33","child_pin_id":"GPIO33"},{"other":{},"signal":"GPIO34","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO34","child_pin_id":"GPIO34"},{"other":{},"signal":"GPIO35","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO35","child_pin_id":"GPIO35"},{"other":{},"signal":"GPIO36","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO36","child_pin_id":"GPIO36"},{"other":{},"signal":"GPIO37","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO37","child_pin_id":"GPIO37"},{"other":{},"signal":"GPIO38","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO38","child_pin_id":"GPIO38"},{"other":{},"signal":"GPIO39","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO39","child_pin_id":"GPIO39"},{"other":{},"signal":"GPIO40","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO40","child_pin_id":"GPIO40"},{"other":{},"signal":"GPIO41","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO41","child_pin_id":"GPIO41"},{"other":{},"signal":"GPIO45","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO45","child_pin_id":"GPIO45"},{"other":{},"signal":"GPIO42","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO42","child_pin_id":"GPIO42"},{"other":{},"signal":"GPIO46","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO46","child_pin_id":"GPIO46"},{"other":{},"signal":"GPIO47","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO47","child_pin_id":"GPIO47"},{"other":{},"signal":"GPIO48","child_ref":"27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu","route_type":"direct","board_pin_id":"IO48","child_pin_id":"GPIO48"}],"requirements":{"other":{},"data_inputs":[],"power_inputs":[{"name":"5V","notes":"5V power input for the board","other":{}}]},"pinout_complete":true},"geometry":{"cad":{"bbox":{"width_mm":18,"height_mm":1.6,"length_mm":22.5},"features":[],"mesh_path":"esp32-s3-supermini.stl","step_path":"esp32-s3-supermini.step","assumptions":["thickness=1.6 mm assumed: PCB thickness not printed; 1.6 mm assumed for the CAD envelope only"],"verification":"generated","envelope_complete":false},"other":{},"derived":{},"dimensions":{"other":{},"width_mm":18,"length_mm":22.5},"feature_boxes":[],"mounting_holes":[]},"provides":{"other":{},"memory":{"other":{},"sram_kb":512,"flash_kb":4096,"psram_kb":2048},"derived":{},"features":["2 MB quad-SPI PSRAM inside the ESP32-S3FH4R2 is off by default — enable \"QSPI PSRAM\" (not OPI) in Arduino, mode: quad in ESPHome","No USB-serial chip: USB-C goes straight to the S3 native USB; enable USB CDC On Boot for Serial","Recovery: hold BOOT while plugging in USB (or tapping RESET) to force the ROM bootloader","WS2812 RGB LED on GPIO48; espboards says the red power LED shares GPIO48 too (esp32.co.uk: clones differ)","Blue charge LED: on while charging, off with a charged battery, blinking with no battery","Battery pads B+/B− with onboard charging on common boards; a BOOST pad raises charge current from 100 mA to 300 mA (only for cells above 500 mAh, per the espboards pinout image)","Some units ship with the ceramic antenna mounted backwards (weak Wi-Fi); a 31 mm quarter-wave wire mod helps","Strapping pins (Espressif): GPIO0 (BOOT button), GPIO3, GPIO45, GPIO46 — avoid loading them at reset","GPIO19/20 are the native USB D−/D+ and go to the USB-C connector, not to pins","GPIO33–38 are free on the quad-PSRAM FH4R2 board but used by octal PSRAM on 8/16 MB variants","First-choice GPIO: 1, 2, 4–8, 15–18, 21","Deep sleep about 43 µA","Size conflict: espboards 23.5 × 18 mm; esp32.co.uk about 22.5 × 18 mm"],"wireless":["Wi-Fi 802.11 b/g/n 2.4 GHz","Bluetooth 5 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