Heltec T190

Name: Heltec T190
Brand: Heltec Automation
Price: 18 USD

Official Active

ESP32-S3R8 + optional SX1262 LoRa dev board with built-in 1.9-inch TFT (170×320, ST7789) for Meshtastic/MeshCore. USB-C, SH1.25 battery connector with charge management, SH1.0 QuickLink sensor port, and IPEX Wi-Fi/LoRa antennas. Two user buttons; no built-in GPS.

~$18 approx.· 2026-06

Product page ↗ Datasheet ↗

MCU: ESP32-S3
Radio: SX1262
Display: 1.9″ LCD / TFT
GPS: None
Battery: External
Connectivity: USB, BLE, Wi-Fi

Roles

CompanionRepeaterRoom ServerStandalone Ui

Transports

bleusbwifi

Hardware

Radio

Technology: LORA
Chip: Semtech SX1262 ↗
Frequency: 433 MHz,470 MHz,868 MHz,915 MHz
TX power: 21 dBm
Antenna: IPEX-1.0

Processor

Family: Espressif ESP32 series ↗
Model: Espressif ESP32-S3 ↗
Architecture: Xtensa LX
Flash: 16 MB
RAM: 512 KB
PSRAM: 8 MB

Display

Type: LCD / TFT
Controller: ST7789
Size: 1.9″
Resolution: 170 × 320
Colors: Color

Input

Button: Yes

Battery

Battery: External connector
Built-in: No
Charging: Yes
Connector: SH1.25-2

Power

Power draw (idle): 0.018 mA

Expansion

Port 1: Header 2.54 ×2 · 13 pins
Port 2: Quicklink Sh1.0 4p · 4 pins

Physical

LEDs: Status LED
Dimensions: 60 × 25.4 × 10.2 mm
Board area: 15.2 cm²
Board volume: 15.5 cm³
Weight: 35 g
Shell: None
Operating temp: -20 to 60 °C

Connectivity

USB: USB-C
USB modes: Power, Serial, Flashing
Bluetooth: BLE 5.0
Wi-Fi: 802.11 b/g/n

Details

Kind: Dev Board
Lifecycle: Active
Family: heltec-vision-master-t190
Firmware support: 2
Catalog completeness: 89 %
Also known as: Vision Master T190, HT-VMT190

Firmware support

Firmware	Type	Target	Status	Notes
MeshCore (Official)	Official	heltec_t190	✓ Supported
MeshCoreNG	Fork	heltec_t190	✓ Supported