WiFi LoRa 32 is a part of the “Heltec LoRa“ series, with the following 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 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, on-board 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 | (Exclusive) Supports the Arduino version of the ESP32 + LoRaWAN protocol routine provided by Heltec. This is a standard LoRaWAN protocol that can communicate with any gateway/base station running the LoRaWAN protocol (requires serial number activation, only the development of the company) The board is available) |
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 |
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 |
12 – bits ADC; 8 – bits DAC | |
29 general GPIO | |
Display | 0.96 inch 128*64 OLED display |
FLASH | 4MB(32M-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 |
Eletrical characteristics
Electrical characteristics | condition | 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 | |||
Output | 3.3V pin output | 500mA | ||
5V pin output (USB powered only) | Equal to input current | |||
External device power control (Vext 3.3V) | 350mA |
Wolfgang Berg –
Ich entschuldige mich aufrichtig für diesen Kommentar! Aber ich teste einige Software zum Ruhm unseres Landes und ihr positives Ergebnis wird dazu beitragen, die Beziehungen Deutschlands im globalen Internet zu stärken. Ich möchte mich noch einmal aufrichtig entschuldigen und liebe Grüße 🙂
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