{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ESP32-S2-SOLO-2U-N4","brand":"Espressif Systems","brandSlug":"espressif","productSlug":"ESP32-S2-SOLO-2U-N4","canonicalUrl":"https://icboms.com/espressif/ESP32-S2-SOLO-2U-N4","factsUrl":"https://icboms.com/api/mcp/products/ESP32-S2-SOLO-2U-N4","rawCanonicalId":null},"summary":{"shortDescription":"Espressif Systems ESP32-S2 series, WiFi module, ESP32-S2-SOLO-2U-N4, 2.4 GHz 802.11b/g/n, 150 Mbps, 4 MB Flash, 336 KB SRAM, -97 dBm sensitivity, 19.5 dBm output, 41-SMD module.","salesMarkdown":"## 2.4 GHz WiFi module with 4 MB flash and 336 KB SRAM The ESP32-S2-SOLO-2U-N4 is a single-core WiFi module from the ESP32-S2 series, integrating a 2.4 GHz radio supporting 802.11b/g/n at up to 150 Mbps. On-chip memory includes 4 MB flash, 128 KB ROM, and 336 KB SRAM — enough headroom for a TCP/IP stack and application logic without external memory in many IoT endpoints. Receiver sensitivity hits -97 dBm, and the transmit chain delivers 19.5 dBm output power. For a battery-powered sensor that needs to push data through a wall or across a warehouse floor, that link budget buys range margin without a separate PA. ## Industrial temperature and current draw for battery design An outdoor gateway or engine-bay telematics unit that sees 75°C on a summer roof still has margin before the silicon hits its upper limit. Receive current is 71–75 mA; transmit current ranges from 165 mA to 310 mA depending on output power setting. In a duty-cycled application (wake, send, sleep), the average draw is dominated by the sleep current — the module's own deep-sleep current is not listed here, but the active-mode numbers let you size the battery for the worst-case burst. The serial interface set (ADC, GPIO, I²C, I²S, SPI, PWM, UART, USB) means most sensor and actuator peripherals connect without a level shifter or external bridge. The module ships in cut tape or bulk — specify the packaging preference at quote time.","metaTitle":"Espressif ESP32-S2-SOLO-2U-N4 WiFi Module, 2.4 GHz, 150 Mbps","metaDescription":"ESP32-S2-SOLO-2U-N4 WiFi module, 2.4 GHz 802.11b/g/n, 4 MB flash, 336 KB SRAM, -97 dBm sensitivity, 19.5 dBm output. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF & Wireless ICs"],"specifications":{"Mfr":"Espressif Systems","Series":"ESP32-S2","Package":"Cut Tape (CT); Bulk","Protocol":"802.11b/g/n","Data Rate":"150Mbps","Frequency":"2.4GHz","Modulation":"-","Memory Size":"4MB Flash, 128kB ROM, 336kB SRAM","Sensitivity":"-97dBm","Antenna Type":"Antenna Not Included","Mounting Type":"Surface Mount","Package / Case":"41-SMD Module","Power - Output":"19.5dBm","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 3.6V","Serial Interfaces":"ADC, GPIO, I²C, I²S, SPI, PWM, UART, USB","RF Family/Standard":"WiFi","Utilized IC / Part":"ESP32-S2","Current - Receiving":"71mA ~ 75mA","Operating Temperature":"-40°C~85°C(TA)","Current - Transmitting":"165mA ~ 310mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.7600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1205b7559a07e9491cfa4939842c5aa0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What antenna does the ESP32-S2-SOLO-2U-N4 require?","answer":"The module does not include an antenna — the antenna type is listed as 'Antenna Not Included'. The board design must provide an external antenna (e.g., a PCB trace, chip antenna, or SMA-connected whip) matched to 2.4 GHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/espressif/ESP32-S2-SOLO-2U-N4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/espressif/ESP32-S2-SOLO-2U-N4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}