{"product_id":"ebyte-e291-400m30s-pan3120-sub-1g-rf-module-evaluation-test-kit","title":"Ebyte E291-400M30S PAN3120 Sub-1G RF Module \u0026 Evaluation Test Kit","description":"\u003cp\u003eThe Ebyte E291 series is a high-performance 410-510MHz Sub-1G wireless RF transceiver system based on the PAN3120 chipset, offering pure SPI hardware modules with up to 30dBm output power for 8km range alongside STM32F103C8T6-powered SC-type Type-C evaluation kits to streamline industrial IoT secondary development.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x: auto; margin: 20px 0;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 800px; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 14px; text-align: left;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f4f6f8; border-bottom: 2px solid #dfe3e8;\"\u003e\n\u003cth style=\"padding: 12px; font-weight: 600; color: #212b36;\"\u003eProduct Model\u003c\/th\u003e\n\u003cth style=\"padding: 12px; font-weight: 600; color: #212b36;\"\u003eProduct Type\u003c\/th\u003e\n\u003cth style=\"padding: 12px; font-weight: 600; color: #212b36;\"\u003eRF Chipset\u003c\/th\u003e\n\u003cth style=\"padding: 12px; font-weight: 600; color: #212b36;\"\u003eFrequency Range\u003c\/th\u003e\n\u003cth style=\"padding: 12px; font-weight: 600; color: #212b36;\"\u003eTX Power\u003c\/th\u003e\n\u003cth style=\"padding: 12px; font-weight: 600; color: #212b36;\"\u003eMax Distance\u003c\/th\u003e\n\u003cth style=\"padding: 12px; font-weight: 600; color: #212b36;\"\u003eDimensions \/ Interface\u003c\/th\u003e\n\u003cth style=\"padding: 12px; font-weight: 600; color: #212b36;\"\u003eOn-board MCU\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #e1e3e5;\"\u003e\n\u003ctd style=\"padding: 12px; font-weight: 600; color: #212b36;\"\u003eE291-400MBH-SC(3120)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003eTest Kit \/ Evaluation Board\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003ePAN3120\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003eSub-1G (dependent on module)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003eDependent on module\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003eDependent on module\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003e30 x 95.3 mm \/ Type-C\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003eSTM32F103C8T6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9fafb; border-bottom: 1px solid #e1e3e5;\"\u003e\n\u003ctd style=\"padding: 12px; font-weight: 600; color: #212b36;\"\u003eE291-400MBL-SC(3120)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003eTest Kit \/ Evaluation Board\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003ePAN3120\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003eSub-1G (dependent on module)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003eDependent on module\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003eDependent on module\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003e30 x 74 mm \/ Type-C\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003eSTM32F103C8T6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e1e3e5;\"\u003e\n\u003ctd style=\"padding: 12px; font-weight: 600; color: #212b36;\"\u003eE291-400M30S(3120)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003ePure Hardware SPI Module\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003ePAN3120\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003e410 to 510 MHz\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003e30 dBm (1W)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003e8 km\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003e38.5 x 24 mm \/ 4.9g\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003eNone (Requires External MCU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9fafb; border-bottom: 1px solid #e1e3e5;\"\u003e\n\u003ctd style=\"padding: 12px; font-weight: 600; color: #212b36;\"\u003eE291-400MM20S(3120)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003ePure Hardware SPI Module\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003ePAN3120\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003e410 to 510 MHz\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003e20 dBm (100mW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003e5 km\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003e10 x 10 mm \/ 0.5g\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003eNone (Requires External MCU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e1e3e5;\"\u003e\n\u003ctd style=\"padding: 12px; font-weight: 600; color: #212b36;\"\u003eE291-400M20S(3120)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003ePure Hardware SPI Module\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003ePAN3120\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003e410 to 510 MHz\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003e20 dBm (100mW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003e5 km\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003e20 x 14 mm \/ 1.5g\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; color: #637381;\"\u003eNone (Requires External MCU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 data-path-to-node=\"13\"\u003ePractical Application Scenarios\u003c\/h2\u003e\n\u003ch3 data-path-to-node=\"14\"\u003e1. Long-Range Wireless Smart Metering Infrastructure\u003c\/h3\u003e\n\u003cp data-path-to-node=\"15\"\u003eIn remote residential utility monitoring, the E291-400M30S pure hardware module serves as a robust Sub-1G RF engine. Operating in the 410-510MHz spectrum with 30dBm (1W) transmit power, this SPI module penetrates thick concrete walls and urban obstacles, achieving a line-of-sight communication distance of up to 8km. This capability enables municipal systems to gather water, gas, and electricity consumption data autonomously without the high infrastructure overhead of cellular backhauls.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"16\"\u003e2. High-Density Agricultural Wireless Sensor Nodes\u003c\/h3\u003e\n\u003cp data-path-to-node=\"17\"\u003eFor precision farming over vast acreage, the ultra-miniature E291-400MM20S module, measuring just 10x10mm and weighing 0.5g, is optimized for integration into battery-powered leaf-temperature, soil moisture, and microclimate sensor probes. Utilizing the module's low-power profiles and 20dBm transmit power, embedded designers can deploy hundreds of sensor endpoints transmitting real-time telemetric parameters back to a central gateway over a 5km radius.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"18\"\u003e3. Rapid Prototype Verification and Modular Hardware Replacement\u003c\/h3\u003e\n\u003cp data-path-to-node=\"19\"\u003eDuring the initial design phase for complex automation networks, hardware engineers can utilize the E291-400MBH-SC(3120) and E291-400MBL-SC(3120) evaluation kits. Equipped with an on-board STM32F103C8T6 MCU and dual-side headers, these kits allow developers to instantly patch GPIOs to actuators or host controllers. Because Ebyte’s new-generation Sub-1G modules feature pin-compatible physical packaging, engineering teams can switch and test different radio variants seamlessly on a single test kit without spinning new PCBs.\u003c\/p\u003e\n\u003chr data-path-to-node=\"20\"\u003e\n\u003ch2 data-path-to-node=\"22\"\u003e\u003c\/h2\u003e\n\u003ch2 data-path-to-node=\"22\"\u003eFAQ Section\u003c\/h2\u003e\n\u003ch3 data-path-to-node=\"23\"\u003e1. What is the difference between the pure hardware modules and the SC evaluation kits?\u003c\/h3\u003e\n\u003cp data-path-to-node=\"24\"\u003eThe E291-400M30S, E291-400M20S, and E291-400MM20S are pure hardware SPI transceiver modules. They do not contain an on-board MCU and require an external host microcontroller to control them via the SPI register commands. In contrast, the E291-400MBH-SC and E291-400MBL-SC are complete evaluation kits that integrate an STM32F103C8T6 MCU, Type-C port, and pin breakouts, specifically designed to test and program these pure hardware modules.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"25\"\u003e2. How do I choose between the different physical dimensions of the E291 SPI modules?\u003c\/h3\u003e\n\u003cp data-path-to-node=\"26\"\u003eThe choice depends on your design constraints regarding space and transmission range. The E291-400M30S (38.5x24mm) provides the maximum 30dBm power for long-distance projects up to 8km. If space is highly restricted, the E291-400MM20S is a micro-footprint module measuring only 10x10mm with 20dBm power and a 5km range, while the E291-400M20S (20x14mm) offers a balanced layout-friendly SMD package with identical RF performance.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"27\"\u003e3. What resources are provided with the SC-series test kits to accelerate development?\u003c\/h3\u003e\n\u003cp data-path-to-node=\"28\"\u003eEbyte provides a complete software application code library and SDK matching the on-board STM32F103C8T6 MCU. All unused peripheral pins are fully exposed via double-row male pins on both sides of the evaluation board, enabling embedded software developers to easily connect logic analyzers, external sensors, and industrial actuators via jumper wires.\u003c\/p\u003e\n\u003cp data-path-to-node=\"28\"\u003e \u003c\/p\u003e","brand":"Ebyte Official Store - IoT Module Manufacturer","offers":[{"title":"E291-400M20S(3120)","offer_id":48601924894925,"sku":"E291-400M20S(3120)","price":1.71,"currency_code":"USD","in_stock":true},{"title":"E291-400MM20S(3120)","offer_id":48601924927693,"sku":"E291-400MM20S(3120)","price":1.71,"currency_code":"USD","in_stock":true},{"title":"E291-400M30S(3120)","offer_id":48601924960461,"sku":"E291-400M30S(3120)","price":4.56,"currency_code":"USD","in_stock":true},{"title":"E291-400MBL-SC(3120)","offer_id":48601924993229,"sku":"E291-400MBL-SC(3120)","price":9.2,"currency_code":"USD","in_stock":true},{"title":"E291-400MBH-SC(3120)","offer_id":48601925025997,"sku":"E291-400MBH-SC(3120)","price":11.12,"currency_code":"USD","in_stock":true},{"title":"E291-400M20S(3120)+TX2400-FPC-4008","offer_id":48601925058765,"sku":"E291-400M20S(3120)+TX2400-FPC-4008","price":2.21,"currency_code":"USD","in_stock":true},{"title":"E291-400M30S(3120)+TX2400-FPC-4008","offer_id":48601925091533,"sku":"E291-400M30S(3120)+TX2400-FPC-4008","price":4.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/E291-400M20S_3120.jpg?v=1784285247","url":"https:\/\/ebyteiot.com\/fr\/products\/ebyte-e291-400m30s-pan3120-sub-1g-rf-module-evaluation-test-kit","provider":"Ebyte Official Store - IoT Module Manufacturer","version":"1.0","type":"link"}