Nordic UART Service Project for BLE Communication between nRF52833 and ESP32

Getting Started

Prerequisites

Download SEGGER from here
Follow this video to install the Espressif IDF VS Code Extension
Download the nRF5 SDK compatible with your SEGGER version from here

Setup

Navigate to your nRF5 SDK path and create a new folder named myexp or any name of your choice:
```
cd /your_nrf_sdk_path/examples/myexp
```
Note: This repository only includes the SoftDevice for nRF52833. For other PCA numbers, copy the SoftDevice files from the nRF5 SDK and modify the main.c functions accordingly.

Clone the repository:

git clone https://github.com/Mio-Atse/nRF-to-ESP-BLE.git

Flashing nRF52833 with SEGGER

Open SEGGER, select "Open Solution" and load the project file:

myexp/nRF-to-ESP-BLE/pca10100/s113/ses/ble_app_uart_pca_10100_s113.emProject

Build the project and flash it to the nRF52833 using the "Connect J-Link" and "Download" options.
Use JlinkRTT Viewer to monitor the USB serial port and ensure the flashing process is successful.

Flashing ESP32 with VSCode

Open the folder:
```
myexp/nRF-to-ESP-BLE/spp_client
```
In the bottom section, select your ESP device and type. Then, run >menuconfig from the VSCode command palette.
Click on "Build, Flash and Monitor" from the menu.
If connected correctly, you should see the following log in the terminal:
```
I (3411) NimBLE: Successfully subscribed to notifications
```

Usage

Press 1 or 2 to switch between data transmitted from nRF52833 to ESP32.
Modify the main.c file on the nRF52833 according to your data transmission needs.
The last data sent from nRF52833 can be saved to ESP Flash NVM and observed in terminal logs after a reset.