آر اف (فرکانس رادیویی) و بی‌سیم ماژول‌ فرستنده‌گیرنده و مودم آر اف

Product Attributes

Introduction

E22-xxxT22D is a new generation of LoRa wireless data transmission modules. It is developed based on high-performance RF chips, with a transmission power of 22dBm and multiple transmission modes. The operating frequency bands are in the 230, 400, and 900mhz, respectively. LoRa spreading technology, TTL level output, and compatibility with 3.3V IO port voltage. E22-xxxT22D adopts the new generation LoRa spreading technology, which is faster, lower power consumption, and smaller in size; Supports functions such as WOR, wireless configuration, carrier monitoring, automatic relay, communication keys, etc., supports packet length settings, and can provide customized development services. The three modules have the same power but different frequency bands.

Features

• Adopting the new generation LoRa spread spectrum modulation technology, it brings longer communication distance and stronger anti-interference ability
• Support serial port firmware upgrade, making firmware updates more convenient
• Support AT commands for more convenient use
• Support automatic relay networking, multi-level relay is suitable for ultra long distance communication, and multiple networks operate simultaneously in the same area
• Support users to set their own communication keys that cannot be read, greatly improving the confidentiality of user data
• Support LBT function, monitor channel environment noise before sending, which can greatly improve the communication success rate of the module in harsh environments
• Support RSSI signal strength indication function for evaluating signal quality, improving communication network, and ranging
• Support wireless parameter configuration, send command data packets wirelessly, and remotely configure or read wireless module parameters
• Support WOR, which is an ultra-low power consumption function suitable for battery powered application solutions
• Support fixed-point transmission, broadcast transmission, and channel monitoring
• Support deep sleep mode, in which the overall power consumption is about 3uA
• Under ideal conditions, the communication distance can reach 5km
• Save the parameters after power failure, and after re powering on, the module will operate according to the set parameters
• Efficient watchdog design, once an exception occurs, the module will automatically restart and continue to work according to the previous parameter settings
• E22-400T22D and E22-900T22D support data transfer rates of 2.4K to 62.5Kbps
• E22-230T22D supports data transmission rates of 2.4K to 15.6Kbps
• Support power supply of 2.7-5.5V, ensuring optimal performance for power supply greater than 5V
• Industrial grade standard design, supporting long-term use at -40~+85 °C

Applications

• Home security alarm and remote keyless entry
• Smart homes and industrial sensors
• Wireless alarm security system
• Building automation solutions
• Wireless industrial grade remote control
• Healthcare products
• Advanced Meter Reading Architecture (AMI)
• Application in the automotive industry