how do you flash new firmware? I want to install the latest meshtastic with meshtastic flasher tool, but won't go into boot mode

OK, this is the 3rd time I've tried to answer this question. If Amazon doesn't want me to answer, they should probably stop asking. The most reliable way I have found to flash the firmware is to use the python tool ,ESPtool, that works with the ESP32 chip. You can find instructions on meshtasticDOTorg under Getting Started > Flashing Firmware > CLI Script - ESP32 Obviously you need to make sure you are writing the correct firmware.

What is the overall board dimensions?

Please check the video there to show the product size.

What is the typical range for one of these devices? More then a mile?

My three boards are setup with SoftRF firmware not Mestastic but the hardware is the same. They are used to track gliders, the longest range when testing was just over 20 miles. But the unit was at 3000 ft. They are line of sight devices if the terrain is blocking it will be much shorter.

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LILYGO T-Beam Meshtastic LORA32 915MHz ESP32 TTGO Development Board WiFi BLE CH9102F Chip Soldered OLED Module

LILYGO T-Beam Meshtastic LORA32 915MHz ESP32 TTGO Development Board WiFi BLE CH9102F Chip Soldered OLED Module

Product ID: 459015623

Details

Brand
LILYGO
Connectivity Technology
Wi-Fi
Included Components
Blu-ray
Memory Storage Capacity
4 MB
Ram Memory Installed Size
8 MB

📡915MHz LoRa long-range comms

🧠ESP32 MCU with WiFi & BLE v4.2

🛰️Integrated GPS NEO-6M module

339.46 DT

Duties & taxes included

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Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Elevate your IoT game with the ultimate long-range dev board!

SMART VERSATILE MCU - Built-in ESP32 with WiFi and BLE v4.2 ensures robust wireless performance and flexible IoT programming.
PRECISION GPS TRACKING - Onboard NEO-6M GPS module with RTC battery and ceramic antenna for reliable, real-time positioning.
PLUG PLAY PROGRAMMING - CH9102 serial port chip simplifies coding with easy driver installation—get your projects live faster.
ULTRA LONG RANGE CONNECTIVITY - Harness the power of 915MHz SX1276 LoRa chip for seamless, low-power data transmission across miles.
COMPACT EXPANDABLE ANTENNA DESIGN - Space-saving 3D WiFi antenna plus IPEX base for external antenna options—customize your signal reach.

The LILYGO T-Beam Meshtastic LORA32 is a cutting-edge development board featuring an ESP32 MCU with WiFi and BLE v4.2, a 915MHz SX1276 LoRa chip for extended low-power communication, and an integrated GPS NEO-6M module for precise location tracking. It includes 4MB flash, 8MB PSRAM, a compact 3D WiFi antenna with an optional external antenna base, and a CH9102 serial programming chip for streamlined development—perfect for professionals building next-gen IoT and mesh network projects.

Specifications

ASIN	B0B63FV7FR
Best Sellers Rank	#942 in Single Board Computers (Computers & Accessories)
Brand	LILYGO
Built-In Media	Blu-ray
Connectivity Technology	Wi-Fi
Customer Reviews	4.5 4.5 out of 5 stars (189)
Global Trade Identification Number	16971336331124
Manufacturer	LILYGO
Memory Storage Capacity	4 MB
Model Number	Meshtastic
Operating System	Linux
Processor Brand	Espressif
Processor Count	1
RAM Memory Installed	8 MB
Total Usb Ports	1
Warranty Description	NO
Wireless Compability	802.11n

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