Lo-Fi: Long-Range Wireless Communication Device Based on ESP32

Lo-Fi - ESP32 + LoRa combination is the perfect solution for anyone looking to establish long-range wireless communication in a variety of applications with WiFi capabilities. LoRa offers exceptional range and easy connectivity, it allows you to seamlessly communicate with devices up to 5 km away. Supported frequency Bands are 433MHz/868MHz/915MHz. 

Devices provide an efficient and trustworthy choice for long-range wireless communication in addition to WiFi access to link internet clouds best suited for Internet of Things applications, enabling connectivity in remote and challenging settings.

Features:

• Device powered by powerful ESP32 S3 WROOM-1 which is having Xtensa® dual-core 32-bit LX7 microprocessor, up to 240 MHz 
• Inbuilt Wi-Fi & Bluetooth LE for wireless connectivity
• Type C interface for Programming/Power 
• 1.14" TFT display for visual interactions
• GPIO breakouts for interfacing additional peripherals 
• Breadboard compatible for easy DIY breadboarding projects
• 2 separate user programmable buttons along with Reset and Boot buttons
• 3.7V Lithium Battery connector for a portable use case with an onboard charging option
• Use new generation LoRa spread spectrum to ensure stable communication
• For LoRa, faster speed and a longer data transmission range of up to 5 km

Specifications:

• Microcontroller: ESP32 S3 WROOM-1
• Wireless Interface: WiFi, BLE, LoRa
• Protocol: 802.11b/g/n, Bluetooth v5.0
• Memory Size: 16MB Flash, 384kB ROM, 8MB SRAM
• Supply Voltage: 5V
• Operating Voltage : 3.3V
  
• Display Size: 1.14”
• Display Type: TFT
• Display resolution: 135 x 240 pixels
• Display driver: ST7789V
• Display Appearance: RGB
• Display color: 4k/65k/252k
• Display Luminance: 400 Cd/m^2
• Operating Temperature: -20 to 70℃
• Storage Temperature: -30 to 80℃
• LoRa Module Specs:
• Carrier Frequency (License Free ISM): 433MHz/868MHz/915MHz
• Chip: Based on SX1262 RF chip
• Range: 5Km
• Transmitting Power: 22dBm
• Receiving Sensitivity: -147dbm
• Data Rate: Up to 62.5kbps
• Communication Port: UART serial

Pinout:

(1) LoRa Module
(2) SMA Antenna Connector
(3) Boot Button
(4) ESP32-S3-WROOM-1
(5) 1.14” Display
(6) Reset Button
(7) Type C interface
(8) Battery Connector
(9) & (14) Programmable Buttons
(10) & (13) LoRa ESP32 UART pins
(11) & (12) GPIOs Breakout

Dimension:

Applications:

• Internet of Things (IoT)
• Smart Home Automation
• Agricultural Automation
• Emergency Services
• Environmental Monitoring
• Industrial Automation

Resources:

Software GitHub: Getting Started Guide
Hardware GitHub: Hardware Design files like Schematic, Step and 3D