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

Product Attributes

Introduction

E32-xxxT20x series (UART) module is developed based on SEMTECH classic RF chip. It’s transmitting power is 20 dBm, with a variety of transmission modes, working frequency band in 400 and 900 band, LoRa spread frequency technology, TTL level output, compatible with 3.3V IO port voltage. E32-xxxT20x adopts the new generation of LoRa expansion technology, LoRa straight sequence expansion technology has the advantages of farther communication distance, strong anti-interference ability, and strong confidentiality. The default air rate is 2.4 kbps and the transmitting power is 20 dBm, so as to improve the communication stability and extend the communication distance; industrial active temperature filling vibration is adopted to ensure its stability and consistency. At present, it has been stable in mass production, and has been widely used in the three-table industry, Internet of things transformation, smart home and other fields. E32-xxxT 20x strictly comply with FCC, CE, ROHS and other domestic and foreign design specifications, meet the radio frequency related certification, meet the export requirements.

Features

• Using the new generation of LoRa spread spectrum modulation technology, bring farther communication distance, anti-interference ability is stronger
• Support serial port upgrade firmware, update firmware is more convenient
• Support AT instruction, more convenient to use
• Support FEC forward error correction to improve communication stability
• Support for the global license-free ISM 433MHz frequency band
• Support the 868 / 915 MHz EU universal frequency band
• Support users to set the communication key, and can not be read, greatly improve the confidentiality of user data
• Support the LBT function, and monitor the channel environment noise before sending, which can greatly improve the communication success rate of the module in the harsh environment
• Support RSSI signal strength indication function for assessing signal quality, improving communication network and ranging
• Support wireless parameter configuration, through wireless sending command packet, remote configuration or reading wireless module parameters
• Support air wake-up, that is, ultra-low power consumption function, suitable for the application scheme of battery power supply
• Support fixed-point transmission, broadcast transmission, and channel monitoring
• Support deep dormancy, the power consumption of the whole machine is about 3 uA
• Under ideal conditions, the communication distance can reach 5k
• The parameters are saved, and the module will work according to the set parameters
• Efficient watchdog design, in case of abnormal, the module will automatically restart, and can continue to work according to the previous parameter Settings
• Support for 2.4K~19.2K bps of data transmission rate
• Support 2.7~5.5V power supply, more than 5V power supply can ensure the best performance
• Industrial grade standard design, support -40~+85°C for a long time to use