SkySpectrum
A versatile wireless communication system featuring a custom RF transmitter and a universal receiver with support for RF, WiFi, Bluetooth, and ESP-NOW.
Overview
SkySpectrum is a cutting-edge, multi-protocol wireless communication system designed for a wide range of applications, from RC vehicles to smart home automation. It features a custom-built Universal Transceiver, offering seamless integration with RF, WiFi, Bluetooth, and ESP-NOW technologies.
With its modular design and adaptable features, SkySpectrum enables precise wireless control, making it ideal for hobbyists, developers, and engineers alike.
Development & Customization
- Programming Platform: Arduino IDE
- Core Libraries:
- RF24 (For nRF24L01 wireless communication)
- Configurable Parameters: Any settings adjustable in the Arduino IDE, including RF24 settings such as frequency, data rate, and power level.
Applications
SkySpectrum is designed for flexible, multi-purpose applications, including:
- RC Airplanes & Drones: Long-range, stable wireless control.
- Smart Home Automation: Wireless integration with home automation systems.
- Bluetooth/WiFi-Controlled Vehicles: Control RC cars and boats seamlessly.
- General RF-Based Wireless Systems: Ideal for various wireless control applications.
Universal Transceiver
- Solder, Code and Use
- Microcontroller: ESP32 Devkit V1
Specifications
Communication Modules:
| Method | Hardware | Use Case |
|---|---|---|
| RF (Radio) | nRF24l01 (with/without PA) | For long distance communication / Direct communication |
| Bluetooth | ESP32 (Builtin) | For receiving data via mobile phones |
| WiFi | ESP32 (Builtin) | For long distance communication / indirect communication |
RF Range:
| Master nRF | Slave nRF | Communication (in open areas) |
|---|---|---|
| without PA | without PA | 100m Half-Duplex |
| with PA | without PA | 1km Simplex or 100m Half-Duplex |
| with PA | with PA | 1km Half-Duplex |
| without PA | with PA | 100m Half-Duplex (or 1km Simplex but from receiver to sender) |
Pins
| Pin Type | Pin Count | Pin Description |
|---|---|---|
| ADC (12-bit) | 13 | Analog Input pins, value ranges from 0 to 4095 |
| DAC | 2 | Produces a clean analog output without using PWM |
| UART | 2 channels | Serial Communication Channels |
| I2C | 5 (Hard-wired) | I2C Communication (Bus Topology : can use unlimited components with unique addresses) |
| PWM | 15 | Controlled square waves produced in a manner to “emulate” analog signals |
| Capacitive Touch Sensing | 7 | Pins that can detect human fingers by conduction |
| RTC_GPIO | 13 | Wake up pins. Wakes up ESP32 from Ultra Power Saver mode |
| Enable | 1 | Turns ESP32 on or off (negligible power is still consumed) |
Repository Structure
| Folder | Purpose |
|---|---|
| PCBs/ | Custom-designed PCB schematics and Gerber files |
| PCBs/Discontinued | Discontinued variations |
| PCBs/RC Transmitter Mini | The PCB files for the RC Transmitter Mini |
| PCBs/Universal Transceiver | The PCB files for the Universal Transceiver |
| README.md | Project documentation and overview |
