LoRa RGB Sync System

$750-1500 USD

In Progress

Posted 6 days ago

$750-1500 USD

Paid on delivery

I need a finished “plug-and-play” LoRa solution that lets my laptop drive lighting cues in real time. Here’s what I’m after: The transmitter must appear to my laptop as a USB device, accept data from the lighting program I supply, and broadcast it with virtually no perceptible lag. On the other end, two independent receivers listen, drive an on-board RGB LED, and faithfully reproduce static colours or ¼-beat pulses exactly as the signal dictates. Target range is at least ¼ mile and ideally up to ½ mile in open air with the lowest possible latency—think of the instant response you see in crowd-control wristbands at concerts. I will provide a small web-based test tool so you can bench-verify timing and colour accuracy before shipping. When the prototype arrives I’ll field-test it; once it hits the range/timing marks I plan to place a follow-on order for a larger batch of receivers. Deliverables • 1 USB-powered LoRa transmitter in a ready-to-go, standard desktop enclosure • 2 LoRa receivers in matching standard enclosures, each with an integrated RGB LED and simple power input • Firmware and source files (so future batches can be produced or tweaked) • Basic user guide covering setup, pairing, and any configuration steps Acceptance will be based on: • Reliable operation over ¼–½ mile with no visible lag • Accurate static colour matching and clean ¼-beat pulses • Out-of-box readiness—just plug in and it works If this sounds like a build you can turn around quickly and confidently, I’m ready to move forward.

Arduino

Electrical Engineering

Project ID: 40638840

About the project

7 proposals

Remote project

Active 6 days ago

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Awarded to:

@mdjavedakhtar

$0 USD in 30 days

4.9

(53 reviews)

6.8

7 freelancers are bidding on average $1,089 USD for this job

@majidabdi

I am an EE engineer. I have experience in both digital and analog circuits. ESP32 and Espressif MCUs, STM32 and Nucleo boards, Arduino boards, TI MSP430, Nordic semiconductor MCUs (nRF52XXX), PIC controllers, and NXP are the controllers I have experience with. I can develop using Arduino IDE environment, CCS, MPLAB IDE, STM32Cube, Keil, and Segger Embedded Studio. I can develop code in C/C++ (Procedural and OOP), and Assembly language. I have expertise in Free RTOS, MBED OS, and Zephyr. I have experience with XBee, LoRa, BLE, Bluetooth Classic, WiFi, and RF sub 1MHz controllers for wireless communication and IoT projects. In the projects I did, SPI, UART, I2C, I2S, One-Wire, CAN, MultiWii, RS232, and RS485 are some of the communication protocols I have used and have expertise in. I can design PCBs using KiCad, Eagle, Altium, and EasyEDA. For the manufacturing process, I can create designs based on active and ongoing parts for a longer design life and select parts from known suppliers such as DigiKey, Mouser, Arrow, etc. In case of testing and design assembly, I can have the design ordered and assembled by me. I can also create basic housing with SolidWorks and 3D print the models for prototyping. I can ship the assembled and tested prototypes to your address. ABOUT YOUR PROJECT SPECIFICALLY, I have done many similar projects before and can handle your project easily. I am looking forward to our further discussion over chat. Cheers!

$1,500 USD in 30 days

5.0

(49 reviews)

6.5

@mubeenm5026

I'm Mubeen, the head of a multidisciplinary team at Web Crest with expertise in electrical engineering. We understand your need for a seamlessly integrated device that delivers lighting cues in real time with minimal latency. My team and I have significant experience in building and deploying plug-and-play solutions that focus on instant responses, accuracy, and reliable operation. With our experience in developing SaaS platforms and automation systems, we are capable of meeting your requirements to provide you with a "LoRa RGB Sync System" like none other. As evidence of our devotion to quality and customer satisfaction, we offer not just the hardware but also the firmware and source code for future flexibility or alterations. Given our vast knowledge across various technologies including AI-powered systems, web and mobile development, we're confident in our ability to build you a cutting-edge solution. Trust us to deliver the LoRa transmitter and matching enclosures for the two receivers that not only meet all your technical specifications but exceed your expectations as well. Let's turn this ambitious project into a reality!

$750 USD in 5 days

5.0

(1 review)

3.0

@Aaleen110

The hardest part of this job is the latency requirement, hitting ¼ mile to ½ mile range with concert wristband response. I will build this with an Arduino Micro on the transmitter, appearing as a USB serial device to your laptop, accepting data from your lighting program. This data feeds a LoRa module, sending it out. The receivers will each have a LoRa module also, connected to an Arduino Nano, driving an on-board RGB LED directly. I will use the RFM95W LoRa modules for their established range and low latency. I pick Arduino Nano for the receiver for simplicity, it's enough to handle the LoRa data and PWM for the RGB LED. I will not be using a separate microcontroller for the LoRa radio on the transmitter. That adds complexity and another potential point of failure and latency. The Arduino Micro has enough processing power. What does "virtually no perceptible lag" mean in milliseconds for the transmitter to receiver data path? For what it is worth, every job I have taken on Freelancer has gone out on time and on budget, 100% on both. If you hand this over, I will have the transmitter sending data over LoRa and at least one receiver displaying static colors within the first day or two.

$1,125 USD in 21 days