{"product_id":"m5stack-lora-e220-920mhz-antenna-unit","title":"M5Stack LoRa E220 920MHz Unit with Antenna","description":"\u003cp\u003e\u003cvideo controls playsinline muted style=\"width:100%;height:auto;\"\u003e\u003csource type=\"video\/mp4\" src=\"https:\/\/m5stack.oss-cn-shenzhen.aliyuncs.com\/resource\/docs\/products\/unit\/LoRaE220-JP%20Unit\/LoRa%20E220%20JP.mp4\"\u003e\u003c\/video\u003e\u003c\/p\u003e\u003ch2\u003eConnect Remote Sensors Where New Cable and Wi-Fi Are Impractical\u003c\/h2\u003e\u003cp\u003eA pump, tank, gate, field sensor, or equipment cabinet may sit far beyond the nearest network connection. Trenching new signal cable costs more than the sensor, while Wi-Fi coverage can disappear behind buildings, trees, or industrial structures. The \u003cstrong\u003eM5Stack LoRa E220 920MHz Unit\u003c\/strong\u003e provides a UART-controlled, low-data-rate radio link for Japanese 920MHz deployments that need status, alarms, commands, or periodic readings over a larger area.\u003c\/p\u003e\u003cp\u003eThe E220-900T22S module uses an LLCC68 radio and supports point-to-point and broadcast communication. Onboard DIP switches select four operating modes, allowing the same hardware to support normal transmission, configuration, wireless wake-up, and other documented workflows.\u003c\/p\u003e\u003ch2\u003eBuild a Direct Link Without Installing a Gateway\u003c\/h2\u003e\u003cp\u003eTwo controllers can exchange data directly for a remote pump alarm, agricultural sensor, gate status, machine fault signal, or site-wide notification. Broadcast mode can send the same status to multiple listening nodes. This is useful when the application needs a simple UART radio link rather than a complete IP or LoRaWAN network.\u003c\/p\u003e\u003cp\u003eKeep payloads compact and design clear acknowledgements, sequence numbers, retries, and timeout behavior when delivery matters. A long-range radio link can reduce infrastructure, but it does not guarantee that every packet reaches the destination.\u003c\/p\u003e\u003ch2\u003eConfirm the Frequency Region Before Ordering\u003c\/h2\u003e\u003cp\u003eThis version operates from \u003cstrong\u003e920.6 to 928.0MHz\u003c\/strong\u003e and is designed for the Japanese 920MHz band. The radio module lists TELEC certification number 001-P01730. It is not interchangeable with 433MHz, EU868, US915, or another regional LoRa version.\u003c\/p\u003e\u003cp\u003eConfirm the deployment country's regulations, allowed channels, transmit-power limits, duty-cycle or access rules, antenna requirements, and any final-product compliance obligations. Every radio in the link must use compatible regional hardware and matching configuration.\u003c\/p\u003e\u003ch3\u003eMatch Every Setting on Both Ends of the Link\u003c\/h3\u003e\u003cp\u003eMany failed links are configuration problems rather than range problems. Check frequency channel, air data rate, addressing, point-to-point or broadcast mode, UART baud rate, parity, wake behavior, and communication-key settings on every node. Record the working configuration so a replacement device can be commissioned without guessing.\u003c\/p\u003e\u003ch2\u003ePlan Range Around the Site, Not the Maximum Number\u003c\/h2\u003e\u003cp\u003eThe product documentation lists communication distance up to approximately 5km under stated test conditions. Buildings, hills, metal structures, vegetation, interference, low antenna height, enclosure shielding, and faster air data rates can reduce that distance substantially.\u003c\/p\u003e\u003cp\u003eTest the radio at the actual endpoints and at the worst seasonal or operating conditions. Mount the antenna away from metal and large cables, keep it vertical when the link design expects vertical polarization, and raise it above nearby obstructions where practical.\u003c\/p\u003e\u003ch3\u003eUse the Included Antenna Correctly\u003c\/h3\u003e\u003cp\u003eThe package includes a 2.5dBi, 110mm SMA male antenna. Attach the correct antenna before transmitting. Do not place it inside a closed metal box or directly against a ground plane that changes its tuning and blocks the signal.\u003c\/p\u003e\u003ch2\u003eChoose It for Small, Important Messages\u003c\/h2\u003e\u003cp\u003eThis radio fits sensor readings, equipment states, threshold alarms, simple remote commands, and periodic telemetry. It is not intended for video, large files, or applications that require continuous high-throughput communication.\u003c\/p\u003e\u003cp\u003eMode settings and command references are available in the \u003ca href=\"https:\/\/docs.m5stack.com\/en\/products\/sku\/U170\" target=\"_blank\" rel=\"noopener\"\u003eM5Stack LoRaE220-920 documentation\u003c\/a\u003e.\u003c\/p\u003e","brand":"LogicBoundless","offers":[{"title":"Default Title","offer_id":49240479465687,"sku":"LB-M5-U170","price":48.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/8952\/2135\/files\/1_141cc29a-15af-41e0-8549-b1275685a976.webp?v=1783243339","url":"https:\/\/logicboundless.com\/products\/m5stack-lora-e220-920mhz-antenna-unit","provider":"LogicBoundless","version":"1.0","type":"link"}