Модуль LoRa 433 МГц 470 SX1278 SX1276 ESP32 для
- Категория: Wireless & IoT >>>
- Поставщик: Chengdu,Heltec,Automation,Technology,Co.,Ltd.
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Описание и отзывы
Трекер стоимости
| Месяц | Минимальная цена | Макс. стоимость |
|---|---|---|
| Sep-18-2025 | 0.85 $* | 0.6 $* |
| Aug-18-2025 | 0.23 $* | 0.65 $* |
| Jul-18-2025 | 0.31 $* | 0.90 $* |
| Jun-18-2025 | 0.74 $* | 0.27 $* |
| May-18-2025 | 0.56 $* | 0.47 $* |
| Apr-18-2025 | 0.15 $* | 0.63 $* |
| Mar-18-2025 | 0.92 $* | 0.9 $* |
| Feb-18-2025 | 0.63 $* | 0.5 $* |
| Jan-18-2025 | 0.57 $* | 0.19 $* |
Характеристики
Product Description
WiFi LoRa 32
433/470MHz LoRa SX1278+ESP32
868/915MHz LoRa SX1276+ESP32
WiFi LoRa 32 is a classic IoT dev-board designed & produced by Heltec Automation(TM), it’s a highly integrated product based on ESP32 + SX127x, it has Wi-Fi, BLE, LoRa functions, also Li-Po battery management system, 0.96″ OLED are also included. It’s the best choice for smart cities, smart farms, smart home, and IoT makers.
INTRODUCTION | ||||||
Main Frequency | 240MHz | FLASH | 8MB | |||
Processor | Tensilica LX6 dual-core | MCU | ESP32 | |||
LoRa Chip | SX1278 | LoRa bands | 433-470MHz | |||
Open Communication Distance | 2.8KM | Computing Power | 600DMIPS（Max） | |||
Bluetooth | Bluetooth&BLE | Development Environment | Arduino | |||
Working Voltage | 3.3~3.7V | Working Temperature | -40-90℃ | |||
Receiver Sensitivity | -139dbm(SD12,125KHz) | UDP Continuous Throughput | 135Mbps | |||
USB to UART Bridge | CP2102 | Support Mode | Sniffer, Station, soft AP, Wi-fi Direct | |||
APPLICATION
Intelligent Vehicle | Intelligent Agriculture | Intelligent Meter Reading | Intelligent Street Lamp |
Robot Control | Equipment Monitoring | Environmental Monitoring | UAV Control |
Details Images
Product Parameters
FEATURES
1.CE Certificate;
2. Microprocessor: ESP32 (dual-core 32-bit MCU + ULP core), with LoRa node chip SX1276/SX1278;
3. Micro USB interface with a complete voltage regulator, ESD protection, short circuit protection, RF shielding, and other protection measures;
4. Onboard SH1.25-2 battery interface, integrated lithium battery management system (charge and discharge management, overcharge protection, battery power detection, USB / battery power automatic switching);
5. Integrated WiFi, LoRa, Bluetooth three network connections, onboard Wi-Fi, Bluetooth dedicated 2.4GHz metal 3D antenna, reserved IPEX (U.FL) interface for LoRa use;
6. On board 0.96-inch 128*64 dot matrix OLED display, which can be used to display debugging information, battery power, and other information;
7. Integrated CP2102 USB to serial port chip, convenient for program downloading, debugging information printing;
8.Support the Arduino development environment;
9. We provide ESP32 + LoRaWAN protocol Arduino® library, this is a standard LoRaWAN protocol that can communicate with any LoRa gateway running the LoRaWAN protocol. In order to make this code running, a unique license is needed. it can be found on there: https://heltec.org/project/wifi-lora-32/;
10. With good RF circuit design and basic low-power design (sleep current ≤800uA), it is convenient for IoT application vendors to quickly verify solutions and deploy applications.
TECHNICAL PARAMETERS
Source | Parameter | ||||||
MCU | ESP32( 240MHz Tensilica LX6 dual-core + 1 ULP, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth) | ||||||
LoRa chip | SX1276 (868 and 915 version); SX1278 (433 and 470 version) | ||||||
LoRa bands | EU_433, CN_470_510, EU_863_870, US_902_928 four bands optional | ||||||
LoRa maximum output power | 18dB ± 2dB | ||||||
Hardware resources | UART x 3; SPI x 2; I2C x 2; I2S x 1 | ||||||
Hardware resources | 12 – bits ADC; 8 – bits DAC | ||||||
29 general GPIO | |||||||
Display | 0.96 inch 128*64 OLED display | ||||||
FLASH | 8MB(64M-bits) SPI FLASH | ||||||
interface | Micro USB x 1; LoRa antenna interface(IPEX) x 1 | ||||||
Size | 50.2 x 25.5 x 9.74 mm | ||||||
USB to UART Bridge | CP2102 | ||||||
Battery Type | 3.7V Lithium（SH1.25 x 2） | ||||||
Battery detection circuit | √ | ||||||
External device power control（Vext） | √ | ||||||
Low power design | Deep Sleep 800uA | ||||||
ELECTRICAL CHARACTERISTICS
Electrical Characteristics | Condition | Min. | Typical | Max. |
Power Supply | USB powered（≥500mA） | 4.7V | 5V | 6V |
Lithium powered（≥250mA） | 3.3V | 3.7V | 4.2V | |
3.3V（pin）powered（≥150mA) | 2.7V | 3.3V | 3.5V | |
5V（pin）powered（≥500mA） | 4.7V | 5V | 6V | |
Power consumption(mA) | WIFI scan | 115mA | ||
WIFI AP | 135mA | |||
LoRa 10dB emission | 50mA | |||
LoRa 12dB emission | 60mA | |||
LoRa 15dB emission | 110mA | |||
LoRa 20dB emission | 130mA | |||
Output | 3.3V pin output | 500mA | ||
5V pin output （USB powered only） | Equal to the input current | |||
External device power control (Vext 3.3V） | 350mA |
TESTING
470MHz Smith Chart
LoRa 470MHz RF Power Output
470MHz SWR Test Data
868/915MHz SWR Test Data
Packaging & Shipping
433/470MHz LoRa SX1278+ESP32
868/915MHz LoRa SX1276+ESP32
1)Different package is base on the quantity of your order.
2) We cooperate with DHL, FEDEX, UPS, EMS, ePacket for delivery, you can choose one that you prefer.
3)If you prefer China Post or HKDHL for delivery, contact me please.
4) If you have special requests(such as declared value, extra remark), please contact me in advance or leave message along with order.
Company Overview
Chengdu Heltec Automation Technology Co., Ltd. ( English abbreviation Heltec Automation). At present, The company's research and development and production include OLED dot matrix screen, electronic ink screen, IoT series products, LoRa supporting solutions and high-precision temperature controllers with automatic control algorithms as the core.
At present, there is a strong technical research and development team, a scientific production and manufacturing platform and a strict quality management system.
OUR SERVICES & STRENGTH
Stable performance, cost-effective products, high-quality and superior service, our products have not only gained a good reputation in the country, but also received high-quality evaluation in France, Germany, Russia, the United States, South Korea and other countries.
1). Rigorous quality assurance system.
2). High level of service awareness.
3). High quality team.
4). Components use well-known brands.
5). Quick response customer program.
6). Self-owned processing plant, rapid production, equipped with automatic SMT placement machine, automatic screen printing machine and reflow oven.
3). High quality team.
4). Components use well-known brands.
5). Quick response customer program.
6). Self-owned processing plant, rapid production, equipped with automatic SMT placement machine, automatic screen printing machine and reflow oven.
Certifications
About us
1.Why choose us?
We have our own SMT factory:
1）Two semi-automatic production lines;
2） Panasonic® CM402 Placement Machine;3）Panasonic® CM202-DS Chip Mounter.
Professional design team, our develop engineers covers hardware system design, RF design, software design (C, C++, ASM, python, JAVA, etc.). Especially in ARM, mbed, Arduino® field.
Professional instruments and equipment for development and test, inlcude:
1）Agilent® N5181A Analog Signal Generator;
2）Agilent® E5062 Vector Network Analyzer;
3）Agilent® 8594E Spectrum Analyzer;
4）GA4033 Spectrum Analyzer;
5） Agilent® E4980A LCR Meter;
6） UC2835 LCR Meter;
7） MSO5074 Oscilloscope;
8） Keysight® E3647A DC Power Supply;
9） Keysight® 34461A Digital Multimeter;
……
Quality assurance system include produce managers, quality supervisor, test engineers and support engineers.
2.What can we do for you?
Hardware design, include:
1）Basic hardware design;
2）Mbed system design;3）Impedance matching and RF system design;
4）Low power hardware design;
5）Ethernet, PoE, 2-Wire etc. bus system.
ARM and Mbed system software design, especially:
1）ESP® series;
2）STM32® series;
3） Psoc® series;
4） Wi-Fi, BLE, LoRa® and LoRaWAN®;
5） Low power software design.
Mechanical structure design;
Automatic control system design;
PCB & SMT produce;
OEM & ODM.
