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LoRa Node 433 & 868 Mhz ESP32 SX1276 WIFI Bluetooth Heltec
This LoRaWAN network node is an IoT development board for LoRa 433Mhz or 868Mhz (depending on the model) with WIFI 802.11 b/g/n/e/i, Bluetooth/BLE and 2.4cm OLED display.
Compatible with the Arduino environment, Windows, Linux, Mac and based on the microprocessor ESP32 (32-bit dual-core) and LoRa chip SX1278 (433Mhz version) or SX1276 (868Mhz version).
Integrates battery management system, charging and discharging, overload protection, automatic switching of USB power / battery.
Delivered with: 1 LoRa ESP32 V2 node, 1 lora antenna 433 or 868, 2 headers (soldering), battery and micro-USB cable not included.
More info
Specifications lorawan Node ESP32
Microprocessor | ESP32 (240MHz LX6 dual-core), 520KB, Wi-Fi, Bluetooth BLE) | |
LoRa chip | SX1276 (868 version) and SX1278 (433 version) | |
LoRa bands | EU_433, EU_863_870 | |
LoRa max.output power | 18dB ± 2dB | |
Hardware resources | UART x 3; SPI x 2; I2C x 2; I2S x 1 | |
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 (drivers) | |
Battery Type | 3.7V Lithium (SH1.25 x 2) | |
Low power design | Deep Sleep 800uA | |
Electrical characteristics
Minimum | Typical | Maximum | |||
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 | ||||
Documentation Heltec WiFi LoRa 32
How to make a serial connection between your ESP32 card on Windows, Mac, or Linux
Arduino Library for Heltec ESP32 (or ESP32 + LoRa) devboards on Github
Pinout diagram ESP32 LoRa V2
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Delivery Europe & Overseas
Stock and shipped from France
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14 days to return, 2 warranty
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