ESP32 BLE 2 BLE Firmware development using Arduino IDE and WS2812B

In this project , a BLE based led controller changes WS2813 LED colours , patterns , brightness etc by recevcing commands / strings over BLE from a User's phone APP and also from an accesory Button [ ESP32 based device with 3 push buttons and 3 leds ] . User can use both app and Button to change LEDs patterns on led controller . This project requires sleep modes , ble2ble , ble2app over UART , ws2812b as functions in the firmware for Arduino IDE . There are 3 devices and all three of them are exchanging data over ble . Firmware development is for 2 devices that have esp32 , app is already developed and sending data to both devices ove ble . We need to develop extra functions and create a solution . Firmware functions on LED Controller using esp32 : Button will : 1. Send commands to LED Controller ove ble . 2. Total 10 commands are exhanged between these two device. LED Controller will ; 1. Send commands/strings to button device via ble. 2. Send commands like battery status etc to phone app via ble. 3. Receive commands from both button and app via ble. , and chnage led patterns as per command sheet , total 20 commands / string of data shared between ble serial uart . 4. Enable sleep mode when not paired . 5. Make constant communication / ble network with 3 devices [ App , LED Controller and Button ] using ble mesh or any algorithm as this is TOP PRIORITY to make this solution robust/sucess . 6. Store data in eeprom . 7. Use unique UUID to couple LED Controller and button . Time : 7 days+ Budget : Extra compensation to quality development . This is POC project , future requirements exists on this project .