{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ESP32-S2-WROVER-N4R2","brand":"Espressif Systems","brandSlug":"espressif","productSlug":"ESP32-S2-WROVER-N4R2","canonicalUrl":"https://icboms.com/espressif/ESP32-S2-WROVER-N4R2","factsUrl":"https://icboms.com/api/mcp/products/ESP32-S2-WROVER-N4R2","rawCanonicalId":null},"summary":{"shortDescription":"Espressif Systems ESP32 series, 802.11b/g/n WiFi module, 150Mbps data rate, 2.4GHz, 4MB Flash + 2MB PSRAM, PCB trace antenna, 56-VFQFN exposed pad, surface mount.","salesMarkdown":"## Module identity and memory budget The ESP32-S2-WROVER-N4R2 is a surface-mount WiFi module from the ESP32 series, built around the Espressif ESP32-S2 single-core Xtensa LX7 MCU. It integrates 4 MB of flash and 2 MB of PSRAM on-package — the PSRAM provides additional heap space for frame buffers or TLS sessions without an external memory bus. ## Wireless link budget The module supports 802.11b/g/n at 2.4 GHz with a maximum PHY data rate of 150 Mbps. Transmit power is rated at 19.5 dBm, and the receiver sensitivity hits -97 dBm — the link budget at the lowest data rate (1 Mbps DSSS) is roughly 116 dB, meaning a clear line-of-sight range well over 100 m in open air, though enclosure and antenna placement will reduce that. The antenna is a PCB trace — there is no U.FL or IPEX connector on this variant. The board layout must allocate a keep-out zone under the antenna area per Espressif's hardware design guide, or the radiated power drops and the module fails FCC/CE radiated emissions. ## Supply rails and current draw Receive current is 63 mA to 68 mA; transmit current runs 160 mA to 310 mA depending on output power setting and data rate — at the full 19.5 dBm TX power, the peak draw approaches the 310 mA ceiling, which means the 3.3 V rail needs a regulator rated for at least 500 mA to cover the transient when the radio switches from sleep to active TX. ## Serial interfaces and peripheral bus The ESP32-S2 exposes ADC, I²C, I²S, SPI, PWM, and UART serial interfaces. The SPI bus can run at up to 80 MHz for external flash or display controllers; the I²S interface supports audio codec streaming with a dedicated MCLK pin. All GPIOs are 3.3 V tolerant — no level shifting needed for standard 3.3 V peripherals. ## Lifecycle and sourcing posture The ESP32-S2-WROVER-N4R2 carries an NRND (Not Recommended for New Designs) lifecycle status from Espressif.","metaTitle":"ESP32-S2-WROVER-N4R2 WiFi module, 4MB Flash 2MB PSRAM","metaDescription":"Espressif Systems ESP32-S2-WROVER-N4R2 WiFi module, 802.11b/g/n, 150Mbps, 4MB Flash + 2MB PSRAM. NRND lifecycle — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["RF & Wireless ICs"],"specifications":{"Mfr":"Espressif Systems","Series":"ESP32","Package":"Cut Tape (CT)","Protocol":"802.11b/g/n","Data Rate":"150Mbps","Frequency":"2.4GHz","Modulation":"-","Memory Size":"4MB Flash, 2MB PSRAM","Sensitivity":"-97dBm","Antenna Type":"PCB Trace","Mounting Type":"Surface Mount","Package / Case":"56-VFQFN Exposed Pad","Power - Output":"19.5dBm","Product Status":"Not For New Designs","lifecycle_stage":"eol_hot","Voltage - Supply":"2.8V ~ 3.6V","Serial Interfaces":"ADC, I²C, I²S, SPI, PWM, UART","RF Family/Standard":"WiFi","Utilized IC / Part":"ESP32-S2","Base Product Number":"ESP32-S2","Current - Receiving":"63mA ~ 68mA","Operating Temperature":"-40°C~125°C","Current - Transmitting":"160mA ~ 310mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.4000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4bd7047f9237aac69c644a208963dd8e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy ESP32-S2-WROVER-N4R2 and get a price?","answer":"We source the ESP32-S2-WROVER-N4R2 to order against an RFQ through independent distribution."},{"question":"What is the closest pin-compatible alternative to ESP32-S2-WROVER-N4R2?","answer":"The ESP32-S3-WROOM-1 series offers a similar footprint but uses a different MCU core (dual-core Xtensa LX7 vs single-core) and has different pin assignments on some GPIOs — a board spin would be required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/espressif/ESP32-S2-WROVER-N4R2","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-WROVER-N4R2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T06:46:28.466Z","lastPublished":"2026-07-21T06:46:28.466Z","indexable":true}}