# Prerequisites

| • | RSL15 SDK CMSIS-Pack version 1.0 or later (available at https://www.onsemi.com/)

| • | RSL10 USB Dongle

| • | RSL15 Evaluation and Development Board (EVB)

| • | BLE Explorer (available at https://www.onsemi.com/)

| • | Python v3.7 or later:

| ◦ | Install package ecdsa version 0.13 or later.

| ◦ | Install package pyserial version 3.2 or later.

| ◦ | Make sure Python is added to the system path.

| ◦ | You can install the above packages using PyPI (for example, python -m pip install ecdsa).

| • | The mobile application (see RSL FOTA Mobile Application).