Choosing between raw Bluetooth System-on-Chips (SoCs), pre-certified hardware-only SoC modules (e.g., Ebyte E73-2G4M08S1C), and AT-command serial transparent modules (e.g., Ebyte E104-BT5032A) determines product time-to-market, RF compliance cost, and power budget. Raw Bluetooth chips require custom impedance matching networks, external 32.768kHz/32MHz crystals, and regional RF regulatory certification (FCC, CE, KC). In contrast, integrated Bluetooth modules bundle RF front-ends, antenna structures (PCB onboard or IPEX connectors), and power management ICs (PMUs) into a shielded footprint. Choosing the right architecture depends on whether the system requires secondary SoC programming (via ARM Cortex-M4F cores), ultra-low sleep current (under 2uA), or transparent UART plug-and-play transmission for industrial equipment.
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DTU/RTU
DTU grades, remote data communication solutions, including E95-DTU, E810-DTU, E32-DTU, etc. Supports LoRa, GPRS, GSM and other communications to meet remote monitoring, data collection and control needs.
Ebyte EWD95M-400SL22(485) Anti-interference 22dBm 5km 433MHz LORA GFSK Miniature DTU RS485/RS232 Data Transmission Radio
The Ebyte EWD95M-400SL22 (485) is a wireless data transmission radio modem using military-grade LoRa modulation technology. It has multiple transmission modes and operates in the (410.125MHz～493.125MHz) frequency band (default 433.125MHz)....
EBYTE E90-DTU(900SL22) SX1262 LoRa 900Mhz 22dBm 5Km Long Range 915MHz 0.3k~62.5kbps RS232 RS485 Wireless Lora Modem
E90-DTU (900SL22) Industrial-Grade LoRa Wireless Data Radio A rugged long-range wireless modem leveraging military-grade LoRa modulation technology for reliable data transmission in challenging environments. Core Product Features Advanced LoRa Modulation...
Ebyte E95-DTU(400SL22-485) SX1268 433MHz 22dBm Wireless Data Transmission LoRa Spread Spectrum Long Distance Anti-Interference
E95-DTU(400SL22-485) Ebyte E95-DTU module industrial grade wireless data transmission station with multi-level relay network function [Frequency]：410～441MHz [Power]：20dBm [Distance]：3km [Size]：92*67*30mm [Interface]：RS485 [Weight]：95±5g [Introduction]：E95-DTU(400SL22-485) is a wireless data transmission DTU that uses...
Ebyte E90-DTU(900SL22)E module long-distance sending receiving Modbus communication LoRa wireless data transmission gateway
$43.40E90-DTU(900SL22)E new generation LoRa wireless 915M module RS485 automatically polls the long-distance sending and receiving Modbus communication gateway. [Interface type]：Ethernet [Working frequency]：900M [Transmit power]：22dBm [Communication distance]： 5km [Product size]：84*82*25mm [Product weight]： 130±5g...
Ebyte E90-DTU(400SL22P) RS232 RS485 iot device CE FCC ROHS 433 mhz transmitter receiver sx1268 lora modem
$26.99E90-DTU(400SL22P) Ebyte wireless digital radio sx1268 5km long range lora gateway 433mhz RSSI LTB support remote configuration [Frequency]：410.125～493.125MHz [Power]：22dBm [Distance]：5km [Size]：108*75*37mm [Interface]：RS232/RS485 [Weight]：238±5g [Introduction]：E90-DTU(400SL22P) is a true high-quality industrial-grade wireless...
Ebyte E90-DTU(230SL22) SX1262 Lora 230Mhz 22dBm 5Km Range 0.3k~15.6kbps RS232 RS485 Wireless Lora Modem
$26.30The Ebyte E90-DTU(230SL22) is an industrial wireless data transceiver built on the Semtech SX1262 LoRa core, operating in the 220.125-236.125MHz frequency band with 22dBm output power, TCXO temperature compensation, transparent...
Ebyte E90-DTU(400SL22)E module long-distance sending receiving Modbus communication LoRa wireless data transmission gateway
$40.41The Ebyte E90-DTU(400SL22)E is a high-performance industrial LoRa wireless Ethernet gateway designed for long-range data transmission up to 5km, supporting 10/100M Ethernet connectivity, Modbus communication, and versatile industrial protocols including...
0.01$ Sample Module
These samples are $0.01, and you can only buy 2 per person. (Limit 2)! Just pay the shipping fee to buy.New product promotion (up to 20% off)
New products of Ebyte: GNSS multi-mode satellite positioning module, E810 series USB to RS485 module, power amplifier PA module.
E810-U16/U17 Series USB to Serial Converter TTL/RS485
$15.61 – $28.66
Ebyte EBT3003 PROFINET Chip Modbus Master/Slave UART 3.9Mbps
$8.57 – $14.48Blog posts
Sub TextDeploying wireless edge nodes via Arduino environments often introduces connectivity instability due to non-blocking network socket misconfigurations, unoptimized AT command parsing, and thermal throttling in high-throughput applications. Integrating industrial-grade WiFi silicon—such as the Espressif ESP32-S3-WROOM-1, Texas Instruments CC3235S, or pre-certified modular hardware like Ebyte's E103-W06 (ESP8266-based) and E101-C3MN4 (ESP32-C3-based)—mitigates hardware-level RF layout degradation. Paired with hardware-optimized libraries (WiFi.h, ESP8266WiFi.h, and WiFiNINA), developers can implement robust TCP/IP sockets, WPA3 enterprise security, and automated reconnect handling to ensure reliable industrial operation across harsh 2.4 GHz and 5 GHz environments.
The Inter-IC Sound (I2S) digital audio interface addresses signal degradation, clock jitter, and electromagnetic interference (EMI) inherent in analog audio transmission by transmitting multi-bit PCM audio data alongside dedicated clock lines over a 3-wire synchronous serial bus. By isolating Bit Clock (BCLK), Word Select (WS/LRCLK), and Serial Data (SD) signals, I2S eliminates time-base errors that cause harmonic distortion in mixed-signal embedded systems. When integrating audio codecs or DSPs with embedded wireless modules like the Ebyte E104-BT5032A (nRF52832), ESP32-S3, or STM32F429 microcontroller families, selecting between standard I2S (MSB-justified/I2S Philips), Left-Justified, Right-Justified, and Time Division Multiplexing (TDM) mode determines channel synchronization, buffer allocation, and master/slave clock tree stability.
Selecting the optimal Bluetooth microcontroller (MCU) or System-on-Chip (SoC) for industrial IoT requires balancing processing architecture (ARM Cortex-M4F/M33), wireless range via output power (+4dBm to +20dBm), power consumption (down to 1.5uA in deep sleep), and peripheral interfaces (UART, SPI, ADC, PWM). For high-density industrial environments, critical factors include physical layer (PHY) capabilities—such as 2Mbps for fast throughput, LE Coded PHY (S=8) for up to 1.5km long-range transmission, and Bluetooth Direction Finding (AoA/AoD)—alongside Flash/RAM capacity for Over-The-Air (OTA) firmware updates. Integrating pre-certified Bluetooth modules with integrated PA/LNA (e.g., Ebyte E73-2G4M20S) simplifies RF impedance matching (50 Ohm) and accelerates FCC/CE compliance.
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