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LoRa Node 433 & 868 Mhz ESP32 WIFI Bluetooth Heltec
No review at the momentThis 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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