HELTEC Stick Lite V3 can install the Meshtastic firmware as a development board which is a highly integrated product based on ESP32(including WiFI and BLE), Li-Po battery management system.
Features:
MCU:
Microprocessor: ESP32-S3FN8 (Xtensa® 32-bit LX7 dual core processor, five stage pipeline rack Structure, main frequency up to 240MHz).
LoRa Transceiver:
Semtech SX1262
Frequency Options:
433 - 510 MHz
470 - 510 MHz
863 - 870 MHz
902 - 928 MHz
Connectors:
USB-C
Antenna:
Dedicated 2.4 GHz stamped metal antenna for WiFi/Bluetooth
U.FL/IPEX antenna connector for LoRa (next to the V3 icon)
No display.
User and Reset Buttons
Additional GPIO availability
No GPS
Meshtastic I2C Definitions
SDA: GPIO41
SCL: GPIO42
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).
Integrated WiFi, LoRa, Bluetooth three network connections, onboard Wi-Fi, Bluetooth dedicated 2.4GHz metal spring antenna, reserved IPEX (U.FL) interface for LoRa
Integrated CP2102 USB to serial port chip, convenient for program downloading, debugging information printing.
Support the Arduino development environment;
Specifications:
Parameters |
Description |
Master Chip |
ESP32-S3FN8 (Xtensa®32-bit lx7 dual core processor) |
LoRa Chipset |
SX1262 |
USB to Serial Chip |
CP2102 |
Frequency |
470~510MHz, 863~928MHz |
Max. TX Power |
21d B ± 1d B |
Max. Receiving sensitivity |
-134dBm |
Wi-Fi |
802.11 b/g/n, up to 150Mbps |
Bluetooth LE |
Bluetooth 5, Bluetooth mesh |
Hardware Resource |
7*ADC1 + 9*ADC2; 8*Touch; 3*UART; 2*I2C; 2*SPI; etc. |
Memory |
384KB ROM; 512KB SRAM; 16KB RTC SRAM; 8MB SiP Flash |
Battery |
3.7V lithium battery power supply and charging |
Operating temperature |
-20 ~ 70 ℃ |
Dimensions |
58.08 * 22.6* 8.2 mm |
Interface |
Type-C USB; 2*1.25 lithium battery interface; LoRa ANT(IPEX1.0); 2.4G ANT(IPEX1.0); 2*20*2.54 Header Pin |
Package Include:
x1 - Heltec Wireless Stick Lite(V3) Pre-flashed with Meshtastic
x1 - SMA Male Glue Rod Antenna
x1 - IPEX to SMA Female Pigtail
x1 - SH1.25×2 Battery Connector
x2 - Pin Headers
Useful Link:
Meshtastic Supported Hardware
Meshtastick Quick Start
Datasheet
Heltec ESP(ESP32&ESP8266) framework
Schematic diagram